Engine - Repair (n62) BMW X5 E70

00 DANGER OF POISONING IF OIL IS INGESTED/ABSORBED THROUGH THE SKIN

Danger of poisoning!

Ingesting oil or absorbing through the skin may cause poisoning!

Possible symptoms are

1. Headaches
2. Dizziness
3. Stomach aches
4. Vomiting
5. Diarrhoea
6. Cramps/fits
7. Unconsciousness

Protective measures/rules of conduct

1. Pour oil only into appropriately marked containers
2. Do not pour oil into drinking vessels (drinks bottles, glasses, cups or mugs)
3. Observe country-specific safety regulations

First aid measures

1. Do not induce vomiting. If the person affected is still conscious, he/she must rinse out their mouth with water, drink plenty of water and consult a doctor immediately. If the person affected is unconscious, do not administer anything by mouth, place the person in the recovery position and seek immediate medical attention.

00 RISK OF INJURY IF OIL COMES INTO CONTACT WITH EYES AND SKIN

Danger of injury!

Contact with eyes or skin may result in injury!

Possible symptoms are

1. Impaired sight
2. Irritation of the eyes
3. Reddening of the skin
4. Rough and cracked skin

Protective measures/rules of conduct

1. Wear protective goggles
2. Wear oil-resistant protective gloves
3. Observe country-specific safety regulations

First aid measures

1. Eye contact: Rinse eyes immediately with plenty of water for at least 15 minutes; if available, use an eye-rinsing bottle. If irritation of the eyes persists, consult a doctor.
2. Skin contact: Wash off with soap and water immediately. If irritation persists, consult a doctor. NOTE: Do not use solvents/thinners.

00 SAFETY INSTRUCTIONS FOR HANDLING OIL

Recycling

Observe country-specific waste-disposal regulations.

Measures if oil is unintentionally released

1. Personal precautionary measures: Danger of slipping! Keep non-involved persons away from the work area. Wear personal protective clothing/equipment.
2. Environmental protection measures: Prevent oil from draining into drain channels, sewerage systems, pits, cellars, water and the ground.
3. Limiting spread: Use oil blocks to prevent the surface spread of oil.
4. Cleaning procedure: Bind and dispose of escaped oil with nonflammable absorbents. NOTE: Do not flush oil away with water or aqueous cleaning agents.

00 00 610 ENGINE OIL SERVICE (N62/N62TU)

Recycling

Catch and dispose of used oil.

Observe country-specific waste-disposal regulations.

Note. For purposes of clarity, this work step is shown without the reinforcement plate.

Open oil drain plug (1) in oil sump.

Remove oil drain plug (2) on oil filter cap (3).

Release oil filter cover (3).

Scheme 378

Installation

Replace and lubricate sealing rings (1 and 2).

Replace oil filter element (3) and slide into oil filter cover.

Oil filter element (3) must snap audibly into place.

Scheme 379

Installation

Replace sealing ring.

Install oil drain plug (1) and tighten down.

Tightening torque 11 13 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Insert and tighten down oil filter cover (3).

Tightening torque 11 42 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Insert oil drain plug (2) on oil filter cap (3) and tighten down.

Tightening torque: 10 Nm.

Scheme 380

Pour in engine oil.

Start engine and run at idle until oil indicator lamp goes out.

Switch off engine, wait approx. 5 minutes and then check engine oil level.

Top up engine oil if necessary.

Scheme 381

Necessary preliminary tasks

1. Remove acoustic cover. Unfasten screws. Raise acoustic cover and remove towards front.
2. Remove right ignition coil cover.
3. Connect DIS Tester.

Test

1. Call up Diagnosis
2. Select car > right arrow key
3. Function selection Complete vehicle Drive Engine management Valve gear Valvetronic variable valve gear Mechanical components/function
4. Test schedule > right arrow key Compression test > right arrow key
5. Follow DIS Tester instructions. NOTE: Clear fault memory

11 00 050 REMOVING AND INSTALLING ENGINE (N62/N62TU)

Special tools required

1. 11 0 000

Necessary preliminary tasks

1. Disconnect negative battery lead. See «12 00... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY»(/bmw/x5/e70-2006-2010/remont/horns/#general-electrical-system-repair__12-00-instructions-for-disconnecting-and) .
2. Both exhaust manifolds remain on engine during removal.

Observe specified tightening torque and safety precautions in all work steps.

REFERENCE CHART

Vehicles with Dynamic Drive only

Unlock and detach hydraulic line (1).

Scheme 382

Suspend engine off-center from special tool 11 0 000 .

Release engine mounts on left and right from above.

Scheme 383

Protect assembly compartment and hydraulic lines against damage.

Installation

Observe specified tightening torque and safety precautions in all work steps.

11 00 670 SECURING ENGINE IN INSTALLATION POSITION (N62)

Special tools required

1. 00 0 200
2. 00 0 202
3. 00 0 204
4. 00 0 208
5. 00 0 451
6. 00 0 452
7. 11 0 000

Necessary preliminary tasks

1. Secure engine bonnet/hood in service position . See «51 00 ... SERVICE POSITION OF ENGINE HOOD/BONNET»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-00-service-position-of) .
2. Remove both intake ducts
3. Remove assembly compartment partition wall . See «51 71 ... REMOVING AND INSTALLING/REPLACING ASSEMBLY COMPARTMENT PARTITION WALL»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-71-removing-and-installingreplacing) .
4. Remove tension strut on spring strut dome on right . See «51 71 372 REMOVING AND INSTALLING/REPLACING BOTH TENSION STRUTS ON SPRING STRUT DOMES»(/bmw/x5/e70-2006-2010/remont/door-locks-anti-theft-systems/#body-equipment-repair__51-71-372-removing-and-installingreplacing) .

Assemble transverse member 00 0 200 with special tools 00 0 202 , 00 0 204 , 00 0 208 .

Modification

Replace profile strips with special tools 00 0 451 .

Replace front supports with special tools 00 0 452 .

Note. Ensure that the longer feet of special tools 00 0 452 point to the middle of the vehicle.

Scheme 384

Note. The support points on the left side are shown.

Position transverse member 00 0 200 with a 2nd person helping on designated areas (1, 2).

Note. Make sure that the front supports 00 0 452 are correctly positioned on the support carriers.

Scheme 385

Secure special tool 11 0 000 to spindle 00 0 202 .

Attach suitable chains to special tool 11 0 000 and suspend from both engine suspension eyelets.

Scheme 386

Scheme 387

Unscrew nuts (1).

Raise engine approx. 10 mm with transverse member.

Installation

Replace self-locking nut.

Tightening torque 22 11 2AZ . See ENGINE AND GEARBOX SUSPENSION - TIGHTENING TORQUES .

Scheme 388

ENGINE IDENTIFICATION

Drive in engine numbers at marked surface with impact tool.

M47/M47TU/M47T2

Scheme 389

M57/M57TU/M57T2

Scheme 390

M67/M67TU

Scheme 391

N47

Scheme 392

M52/M52TU

Scheme 393

M54

Scheme 394

M56

Scheme 395

N40/N45

Scheme 396

N42/N46/N46T

Scheme 397

N51/N52/N52K/N53/N54

Scheme 398

N62

Scheme 399

N73

Scheme 400

S54

Scheme 401

S85

Scheme 402

W10/W11

Scheme 403

W17

Scheme 404

Assemble engine.

11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove design cover, if equipped.
2. Unfasten acoustic cover screws. Raise acoustic cover and remove towards front.
3. Remove ignition coil cover

Note. For purposes of clarity, the following work steps are shown on the engine after it has been removed.

Unclip cable holder (1) with cables.

Pull tank venting valve (2) off holder.

Scheme 405

Unlock plug (1) and remove.

Scheme 406

Release screws and remove sealing element (2).

Remove sensors (3 and 4).

Installation

Replace sealing element (2).

Replace sealing rings on sensors (3 and 4).

Scheme 407

Removing ignition coils.

Release both grounding cables.

Unlock and detach vent hose.

Unclip cable duct (1) and remove cable from holder.

Scheme 408

Remove servomotor for left eccentric shaft . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Unfasten screws.

Remove spacer (3) upwards.

Installation

Replace sealing ring.

Scheme 409

Remove injection pipe

Release screw connections (1, 2, 3 and 4).

If necessary, pull out oil dipstick.

Remove cylinder head cover.

Scheme 410

Installation

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Scheme 411

Replace sealing ring (1) and press into cylinder head cover until flush.

Scheme 412

Installation

Replace seal (1).

Align gasket (1) loosely in cover groove. Starting at corner radii, secure gasket (1) in cover groove and press into groove so that it is free of tension.

Scheme 413

Installation

Replace spark plug domes.

Coat rubber seals on spark plug dome (1) with anti-friction rubber coating.

Scheme 414

Installation

Install spark plug domes in cylinder head.

When fitting cylinder head cover

Align spark plug domes to cylinder head cover.

Scheme 415

Installation

Clean seal residue from sealing surfaces.

Coat contact surfaces of joint with Drei Bond 1209.

Scheme 416

Installation

Clean seal residue from sealing surfaces.

Apply a thin, uniform bead of Drei Bond 1209 sealing agent to transition area of half-moon sections.

Scheme 417

Replace sealing elements (1).

Scheme 418

Installation

Make sure gasket is correctly seated at sides and on rear side of cylinder head.

Scheme 419

Installation

Screw connections (1, 2, 3 and 4) of cylinder head cover are different.

Replace screw connections (3).

Insert screw connections (1, 2 and 3) without pretension and align cover.

Tighten down screw connections (1, 2 and 3) in diagonal sequence from inside to outside.

11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)

(cylinder bank 1 to 4)

Remove design cover, if equipped.

Unfasten acoustic cover screws. Raise acoustic cover and remove towards front.

Remove electronics box cover.

Remove electronics box seal.

These work steps are described in REPLACING CONTROL UNIT .

Remove ignition coil cover.

Remove intake hose with air-mass flow sensor.

Note. For purposes of clarity, the following work steps are shown on the engine after it has been removed.

Unlock plug (1) and remove.

Scheme 420

Release screws and remove sealing element (2). Remove sensors (3 and 4).

Installation

Replace sealing element (2).

Replace sealing rings on sensors (3 and 4).

Scheme 421

Removing ignition coils.

Release both grounding cables.

Unlock and detach vent hose.

Unclip cable duct (1) and remove cable from holder.

Scheme 422

Remove servomotor for right eccentric shaft . See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Unfasten screws.

Remove spacer (3) upwards.

Replace seal.

Scheme 423

Remove injection pipe.

Release screw connections (1, 2, 3 and 4).

Remove cylinder-head cover.

Scheme 424

Installation

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Scheme 425

Replace sealing ring (1) and press into cylinder head cover until flush.

Installation

Replace seal (1).

Align gasket (1) loosely in cover groove. Starting at corner radii, secure gasket (1) in cover groove and press into groove so that it is free of tension.

Installation

Make sure sliding rails are correctly seated when mounting on cylinder head.

Scheme 426

Installation

Replace spark plug domes.

Coat rubber seals on spark plug dome (1) with anti-friction rubber coating.

Installation

Install spark plug domes in cylinder head.

When fitting cylinder head cover

Align spark plug domes to cylinder head cover.

Installation

Clean seal residue from sealing surfaces.

Coat contact surfaces of joint with Drei Bond 1209.

Scheme 427

Installation

Clean seal residue from sealing surfaces.

Apply a thin, uniform bead of Drei Bond 1209 sealing agent to transition area of half-moon sections.

Scheme 428

Replace sealing elements (1).

Scheme 429

Installation

Make sure gasket is correctly seated at sides and on rear side of cylinder head.

Scheme 430

Installation

Screw connections (1, 2, 3 and 4) of cylinder head cover are different .

Replace screw connections (3).

Move cylinder head cover with gasket into assembly position.

Secure cylinder head cover, starting with screw connection (4) from front .

Tighten down screw connections (1, 2 and 3) in diagonal sequence from inside to outside.

11 12 105 REMOVING AND INSTALLING LEFT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)

(cylinder bank 5 to 8)

Note. To remove the exhaust manifolds, the engine must be secured in the installation position with the special tool and then the front axle bracket lowered.

Remove left exhaust manifold.

After removing exhaust manifolds

Reinstall front axle bracket provisionally and remove special tool for securing engine in installation position.

Open drain plug for coolant on left side of engine block.

Drain off coolant and dispose of correctly.

Installation

Replace sealing ring.

Tightening torque of drain plug 11 11 5AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Top up coolant. Vent cooling system and check for leaks . See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N52K) .

Remove ignition coils on cylinder bank 5 to 8.

Remove servomotor for left eccentric shaft. See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Remove intake air manifold . See 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62) .

Remove left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Remove left timing case cover . See 11 14 080 REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU) .

Disconnect plug connections and lay engine wiring harness to one side.

Remove spark plugs on cylinder bank 5 to 8.

Remove vent hose on cylinder head.

Note. Illustration with engine removed.

Detach hose (1) on check valve (2).

E65 only

Release screws (3).

Remove tube (4) with check valve (2).

Note. Do not remove guide tube (5) for oil dipstick.

Installation

Replace sealing ring on tube (4) and coat with antiseize agent.

Scheme 431

Removal

Removal of cylinder head is described separately from installation.

Remove inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Note. Illustration with engine removed.

Remove eccentric shaft sensor (2).

Scheme 432

Detach guide rail from cylinder head.

Scheme 433

Release screws between cylinder head and timing case cover.

Scheme 434

Note. At narrow points, use a socket with 3/8" drive and a short extension.

Release cylinder-head bolts in sequence 10... 1.

Lift off cylinder head.

Lift off cylinder head gasket.

Scheme 435

Installation

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and crankcase; if necessary, remove gasket debris with wooden scraper. Make sure no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (risk of cracking).

Coat joint between engine block and timing case cover with Drei Bond 1209.

Scheme 436

Check dowel sleeves (1) for damage and correct installation position.

Fit new cylinder-head seal.

Scheme 437

Put the cylinder head on.

Note. Do not wash off bolt coating. Insert new cylinder head bolts and initially tighten so that they are free of play.

At narrow points, use a socket with 3/8" drive and a short extension.

Tighten down the cylinder-head bolts in order 1... 10.

Tightening torque 11 12 8AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Insert and tighten down screws between cylinder head and timing case cover.

Replacement

Insert screw plug (1).

Installation

Failure to install the screw (1) will result in a malfunction in the VANOS control.

Scheme 438

Insert and tighten down guide rail screw.

Note. Illustration with engine removed.

Install eccentric shaft sensor (2).

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Assemble engine.

11 12 106 REMOVING AND INSTALLING RIGHT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)

(cylinder bank 1 to 4)

Note. To remove the exhaust manifolds, the engine must be secured in the installation position with the special tool and then the front axle bracket lowered.

Remove right exhaust manifold.

After removing exhaust manifolds

Reinstall front axle bracket provisionally and remove special tool for securing engine in installation position.

Open drain plug for coolant on right side of engine block.

Drain off coolant and dispose of correctly.

Installation

Replace sealing ring.

Tightening torque of drain plug 11 11 5AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Top up coolant. Vent cooling system and check for leaks . See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N52K) .

Remove ignition coils on cylinder bank 1 to 4.

Remove servomotor for right eccentric shaft. See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Remove intake air manifold . See 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (N62) .

Remove right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Remove right timing case cover . See 11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU) .

Disconnect plug connections and lay engine wiring harness to one side.

Remove spark plugs on cylinder bank 1 to 4.

Remove vent hose on cylinder head.

Note. Illustration with engine removed.

Detach hose (1) on check valve (4).

Unfasten screws (2).

Release screw (3) and remove check valve (4), tube (5) and spacer bushing.

Unclip cables (6 and 7).

Scheme 439

Installation

Replace sealing ring on tube (5) and coat with antiseize agent.

Removal

Removal of cylinder head is described separately from installation.

Remove inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Slacken off chain tensioning piston (1) by approx. one turn.

Scheme 440

Note. Illustration with engine removed.

Remove eccentric shaft sensor (2).

Scheme 441

Detach guide rail from cylinder head.

Scheme 442

Release screws between cylinder head and timing case cover.

Scheme 443

Note. At narrow points, use a socket with 3/8" drive and a short extension.

Release cylinder-head bolts in sequence 10... 1.

Lift off cylinder head.

Lift off cylinder head gasket.

Scheme 444

Remove chain tensioning piston (1).

Scheme 445

Place chain tensioning piston (1) on a level surface and compress slowly and carefully.

Repeat this procedure twice.

Scheme 446

Installation

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and crankcase; if necessary, remove gasket debris with wooden scraper. Make sure no gasket debris drops into the oil and coolant ducts.

Threaded bores in engine block must be free of dirt and oil (risk of cracking).

Replace sealing ring.

Install chain tensioning piston (1) and initially tighten screw connection without play.

Coat joint between engine block and timing case cover with Drei Bond 1209.

Scheme 447

Check dowel sleeves (1) for damage and correct installation position.

Fit new cylinder-head seal.

Scheme 448

Put the cylinder head on.

Note. Do not wash off bolt coating. Insert new cylinder head bolts and initially tighten so that they are free of play.

At narrow points, use a socket with 3/8" drive and a short extension.

Tighten down the cylinder-head bolts in order 1... 10.

Tightening torque 11 12 8AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Insert and tighten down screws between cylinder head and timing case cover.

Replacement

Insert screw plug (1).

Installation

Failure to install the screw (1) will result in a malfunction in the VANOS control.

Insert and tighten down guide rail screw.

Note. Illustration with engine removed.

Install eccentric shaft sensor (2).

Tighten down chain tensioning piston (1).

Tightening torque 11 31 8AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Install inlet and exhaust adjustment units on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Assemble engine.

11 12 503 DISASSEMBLING AND ASSEMBLING CYLINDER HEAD (N62/N62TU)

Special tools required

1. 11 9 000
2. 11 9 001
3. 11 9 002
4. 11 9 005
5. 11 9 006
6. 11 9 007
7. 11 9 008
8. 11 9 009
9. 11 9 011
10. 11 9 015

Have special tool 11 9 000 ready for removing valve springs.

Secure cylinder head (1) on special tool 11 9 001 .

Note. Secure cylinder head from above with screws contained in scope of delivery on special tool 11 9 001 .

Turn special tool 11 9 001 through 180°.

Scheme 449

Align special tool 11 9 008 in conjunction with special tool 11 9 007 on special tool 11 9 006 to relevant combustion chamber.

Place special tool 11 9 006 on cylinder head.

Scheme 450

Slide both special tools 11 9 005 in direction of arrow as far as they will go.

Scheme 451

Turn lever of special tools 11 9 005 .

Turn special tool 11 9 001 through 180°.

Scheme 452

Assemble clamping device with

Scheme 453

1. special tool 11 9 002
2. special tool 11 9 009
3. special tool 11 9 011
4. special tool 11 9 015

Remove all valve springs.

Remove all valve stem seals . See 11 34 560 REPLACING ALL VALVE STEM SEALS (N62) .

Remove all valves . See 11 34 552 REMOVING AND INSTALLING/REPLACING ALL VALVES (N62) .

11 12 527 REMACHINING A VALVE SEAT - CYLINDER HEAD DISASSEMBLED (N62)

Special tools required

1. 00 3 520
2. 00 3 580

Machine valve seat surface with special tool 00 3 520 or with 00 3 580 in accordance with tool manufacturer's instructions.

Scheme 454

Note. After machining valve-seat surface: Remachine outside and inside diameters with correction milling tool to the specified diameters until you obtain valve seat width (5).

1. Valve-seat angle
2. Correction angle, external diameter
3. Correction angle, internal diameter
4. Valve seat, external diameter
5. Valve seat width

Items (1) to (5).

Scheme 455

11 12 719 MILLING CYLINDER HEAD SEALING FACE (N62/N62TU)

(cylinder head dismantled)

Check evenness of cylinder head sealing face with a standard straight-edge (1).

Note. Maximum plane deviation: longitudinal 0.10 mm.

Scheme 456

Note. Maximum plane deviation: transversal 0.05 mm.

Scheme 457

1. Machining limit . See «ENGINE - TECHNICAL DATA - V8 (N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-technical-data-n62) .

Note. A cylinder head seal 0.3 mm thicker than usual can be obtained for machined (milled) cylinder heads.

Scheme 458

11 12 729 CHECKING CYLINDER HEAD FOR WATER LEAKS (N62/N62TU)

Special tools required

1. 11 9 430
2. 11 9 431
3. 11 9 432
4. 11 9 433

(cylinder head dismantled)

Prepare special tool kit 11 9 430.

Note. Special tool kit 11 9 430 can be used for cylinder bank 1 to 4 and cylinder bank 5 to 8.

Place special tool 11 9 431 on cylinder head sealing surface, insert screws (special tool 11 9 433 ) and tighten down.

Seal coolant aperture with special tool 11 9 432 and tighten down.

Scheme 459

Connect compressed air hose (1) to pressure gauge.

Immerse cylinder head in a water bath. Inspection pressure 4.5 bar.

Check cylinder head for escaping air (cracks).

Note. If necessary, add cleaning agent to water bath.

Scheme 460

11 13 010 REMOVING AND INSTALLING/REPLACING OIL SUMP TOP SECTION (N62/N62TU)

Special tools required

1. 17 0 030

REFERENCE CHART

Release screw, remove tensioner (1) from A/C compressor drive belt (E65 only).

Scheme 461

Unfasten screws.

Scheme 462

Release screws and remove oil sump top section.

Installation

Replace sealing ring on dipstick guide tube.

Free sealing faces of seal debris and clean.

1. Replace gasket.
2. Install oil sump.
3. Insert all screws on transmission end
4. Tighten down all screws on oil sump.

Tightening torque 11 13 2AZ. See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 463

11 13 020 REMOVING AND INSTALLING/REPLACING OIL SUMP BOTTOM SECTION (N62/N62TU)

Necessary preliminary tasks

1. Remove reinforcement plate.
2. Remove oil drain plug and drain engine oil.

Unlock plug connection (1) on oil level sensor and disconnect.

Release screws and remove oil sump bottom section (2).

Tightening torque 11 13 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installation

Clean sealing surfaces.

Replace seal.

Replace screws.

When replacing oil sump bottom section

Convert oil level sensor.

Replace sealing ring.

Scheme 464

12 13 511 REPLACING IGNITION COIL (N62TU)

Necessary preliminary tasks

1. Switch off ignition
2. Remove intake filter housing . See «13 71 000 REMOVING AND INSTALLING/REPLACING INTAKE FILTER HOUSING (N52K)»(/bmw/x5/e70-2006-2010/remont/fuel-system/#fuel-system-repair-n52__13-71-000-removing-and-installingreplacing) .

Release screws and remove holder (1).

Pull ignition coil covers (2) out of rubber grommets.

Scheme 465

Unlock plug fastener (1) of ignition coil.

Scheme 466

Detach ignition coil connector in direction of arrow.

Pull out ignition coil (2).

This procedure is applicable to all ignition coils.

Scheme 467

Installation

Insert rubber seal on ignition coils (2) between guides.

Scheme 468

Assemble engine.

Note. Read out DME fault memory. Check function of DME.

Removing acoustic cover (N62/N62TU)

Unfasten screws.

Raise acoustic cover (1) and remove towards front.

Scheme 469

11 14 080 REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU)

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove left cylinder head cover. See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
2. Remove both solenoid valves on left side . See «11 36 715 REMOVING AND INSTALLING/REPLACING BOTH LEFT SOLENOID VALVES (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-715-removing-and-installingreplacing) .
3. Release alternator (air-cooled).

Release screw, remove holder (1).

Remove line (2) from holder.

Scheme 470

Release screws (1 and 2).

Remove timing case cover (3).

Scheme 471

Installation

Free sealing face (2) on timing case cover (3) of seal debris and clean.

Scheme 472

Installation

Check adapter sleeves (1) for damage and correct installation position; replace if necessary.

Free sealing face (2) of seal debris and clean.

Scheme 473

Installation

Replace gasket (1) and check for correct installation position.

Scheme 474

11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU)

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
2. Remove vacuum pump . See «11 66 000 REMOVING AND INSTALLING/REPLACING VACUUM PUMP (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-66-000-removing-and-installingreplacing) .
3. Remove both solenoid valves on right side . See «11 36 720 REMOVING AND INSTALLING/REPLACING BOTH RIGHT SOLENOID VALVES (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-720-removing-and-installingreplacing) .

Remove cable from holder.

Scheme 475

Release screws (1 and 2).

Remove timing case cover (3).

Scheme 476

Installation

Free sealing face (2) on timing case cover (3) of seal debris and clean.

Scheme 477

Installation

Check adapter sleeves (1) for damage and correct installation position; replace if necessary.

Free sealing face (2) of seal debris and clean.

Scheme 478

Installation

Replace gasket (1) and check for correct installation position.

Scheme 479

11 14 110 REMOVING AND INSTALLING BOTTOM TIMING CASE COVER (N62/N62TU)

Special tools required

1. 23 1 040

Necessary preliminary tasks

1. Remove engine . See «11 00 050 REMOVING AND INSTALLING ENGINE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-00-050-removing-and-installing) .
2. Remove both cylinder heads . See «11 12 105 REMOVING AND INSTALLING LEFT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-105-removing-and-installing) and «11 12 106 REMOVING AND INSTALLING RIGHT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-106-removing-and-installing) .
3. Remove lower oil sump section . See «11 13 020 REMOVING AND INSTALLING/REPLACING OIL SUMP BOTTOM SECTION (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-13-020-removing-and-installingreplacing) .
4. Remove upper oil sump section . See «11 13 010 REMOVING AND INSTALLING/REPLACING OIL SUMP TOP SECTION (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-13-010-removing-and-installingreplacing) .
5. Remove vibration damper . See «11 23 010 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-23-010-removing-and-installingreplacing) .
6. Remove water pump . See «11 51 000 REMOVING AND INSTALLING/REPLACING WATER PUMP (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-51-000-removing-and-installingreplacing) .
7. Remove tensioner from poly-V-belt
8. Remove alternator with housing
9. Remove hub for vibration damper . See «11 23 031 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER HUB (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-23-031-removing-and-installingreplacing) .
10. Remove flywheel . See «11 22 000 REMOVING AND INSTALLING/REPLACING FLYWHEEL (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-22-000-removing-and-installingreplacing) .
11. Remove rear coolant cap

Release screws along lines (1).

Remove timing case cover (2) towards front.

Scheme 480

Drive out water pipe (1) with special tool 23 1 040 at cutout (2) towards front.

Installation

Replace water pipe (1) and sealing ring (3).

Scheme 481

Installation

Clean sealing surfaces and replace seal.

Install timing case cover, insert all screws and initially tighten to approx. 5 Nm.

Fully tighten all screws in alternate sequence.

Tightening torque 11 14 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Replace radial seal in timing case at bottom. See 11 14 141 REPLACING RADIAL SHAFT SEAL IN TIMING CASE COVER AT BOTTOM (N62/N62TU) .

11 14 141 REPLACING RADIAL SHAFT SEAL IN TIMING CASE COVER AT BOTTOM (N62/N62TU)

Special tools required

1. 11 9 410
2. 11 9 420

Necessary preliminary tasks

1. Removing hub for vibration damper . See «11 23 031 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER HUB (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-23-031-removing-and-installingreplacing) .

Position lever (2) for removing radial shaft seal (1) horizontally and install special tool 11 9 410 .

Scheme 482

Turn lever (2) so that it grips behind radial shaft seal (1).

Turn bolt (3) on special tool 11 9 410 to remove radial shaft seal (1).

Scheme 483

Note. Radial shaft seal may only be supported with a "support sleeve".

If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.

Remove support sleeve (2) from radial shaft seal (1).

Scheme 484

Fit radial shaft seal (1) on timing case cover.

Scheme 485

Using special tool 11 9 420 and central bolt (3), install radial shaft seal flush with timing case cover.

Scheme 486

11 14 151 REPLACING CRANKSHAFT RADIAL SHAFT SEAL (N62/N62TU)

Special tools required

1. 11 2 390

(transmission side)

Necessary preliminary tasks

1. Remove transmission . See «24 00 023 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6HP26Z) N62TU»(/bmw/x5/e70-2006-2010/remont/automatic-trans/#automatic-transmission-repair__24-00-023-removing-and-installing) .
2. Drain off engine oil.
3. Remove flywheel . See «11 22 000 REMOVING AND INSTALLING/REPLACING FLYWHEEL (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-22-000-removing-and-installingreplacing) .

Release screws (2).

Release screws (1).

Carefully remove end cover.

Scheme 487

Note. Support sleeve (2) is included in scope of delivery.

If the radial shaft seal (1) is stored for longer than six months without the support sleeve (2), its operational reliability can no longer be guaranteed and it must not be reused.

The support sleeve (2) remains in the radial shaft seal and is used as a slip sleeve in the installation described later.

Scheme 488

When the radial shaft seal is installed, only the support sleeve included in the scope of delivery may be used as a slip sleeve.

Scheme 489

Note. The radial shaft seal can only be replaced completely with the end cover. The gasket is an integral part of the end cover and cannot be replaced individually.

Installation

Check dowel sleeves (1) for damage and correct installation position.

Keep sealing faces clean and free of oil.

Coat contact points on joint along oil sump with Drei Bond 1209.

Scheme 490

Installation

Lightly oil running surface of crankshaft.

Fit end cover (1) with support sleeve (2) on crankshaft and push on carefully.

Scheme 491

Insert screws (1) and initially tighten without play.

Insert screws (2) and initially tighten without play.

Tighten down screws (1).

Tighten down screws (2).

11 21 500 REPLACING CRANKSHAFT (N62/N62TU)

REFERENCE CHART

Release main bearing inclined screw connection (1).

Installation

Tightening torque 11 11 3AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 492

Release spacer bolt (2).

Tightening torque 11 11 3AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release main bearing screws.

Tightening torque 11 11 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 493

Remove main bearing caps 1 to 5.

Lever out crankshaft.

Scheme 494

Replace main crankshaft bearing shells . See 11 21 531 REPLACING ALL MAIN CRANKSHAFT BEARING SHELLS (N62/N62TU) .

Replace conrod bearing shells . See 11 24 571 REPLACING ALL CONROD BEARINGS (N62/N62TU) .

11 21 531 REPLACING ALL MAIN CRANKSHAFT BEARING SHELLS (N62/N62TU)

Special tools required

1. 00 2 590
2. 00 9 120

Necessary preliminary tasks

1. (engine dismantled)
2. Clean components before installing.
3. Preparatory tasks are described in the section «REPLACING CRANKSHAFT»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-21-500-replacing-crankshaft-n62n62tu) .

Note. Install main bearing shells (1) with lubrication groove in crankcase. Install main bearing shells (2) without lubrication groove in the main bearing caps.

Scheme 495

The letter (1) denotes the crankshaft construction stage.

S= Series

B= Construction stage 1

C= Construction stage 2

The numbers (2) denote the bearing shell classification for the relevant bearing position from 1 to 5 (main bearing cap).

1= yellow

2= green

3= violet

Scheme 496

The letters (1) denote the bearing shell classification for the relevant bearing position from 1 to 5 in the crankcase and is located on the transmission side in the Vee. The first letter on the left applies to the first bearing position at the front.

Y= yellow

G= green

V= violet

Scheme 497

Note. Main bearing caps (1, 2 and 3) are identified with punch numbers. Main bearing caps (4 and 5) are not identified.

Note. Main bearing cap number 5 can be identified by the surfaces (1) for the stop disks of the thrust bearing.

Scheme 498

Unscrew thread support bushings in main bearing caps.

Scheme 499

Checking main bearing clearance

To check crankshaft bearing clearance, use old main bearing screws.

There must be no oil in the blind holes (risk of cracking).

Do not twist crankshaft.

Fit special tool 00 2 590 (Plastigage Type PG 1) to the oil-free crankshaft.

Scheme 500

Scheme 501

1. Tighten all screws on main bearing cover with jointing torque.
2. Tighten down all screws on main bearing caps with special tool 00 9 120 and torsion angle. Tightening torque, 11 11 2AZ . See «ENGINE - TIGHTENING TORQUES (N62TU V8)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-tightening-torques-n62) .

Remove main bearing cap.

Read off main bearing play at width of flattened plastic thread with assistance of measurement scale.

Main bearing play.

Scheme 502

1. Remove plastic thread.
2. Lubricate bearing shells and bearing shells.

Note. Always replace main bearing bolts of main bearing caps with new bolts. Do not wash off bolt coating. No oil is permitted in the blind bores! (Danger of cracking).

Tightening specifications for main bearing

Scheme 503

1. Tighten all screws on main bearing cover with jointing torque.
2. Unfasten screws on main bearing cover 5.
3. Strike back and front of crankshaft with plastic hammer to center thrust bearing (do not damage crankshaft). Check axial play. Check guide bearing shell, crankshaft and crankcase if necessary.
4. Tighten screws of main bearing cover 5 with jointing torque.
5. Tightening torque 11 11 2AZ . See «ENGINE - TIGHTENING TORQUES (N62TU V8)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-tightening-torques-n62) .

Tighten down all screws on main bearing caps with special tool 00 9 120 and torsion angle.

Tightening torque, 11 11 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Tighten down thread support bushings (2).

Tightening torque, 11 11 3AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Replace flanged head screws (1) and tighten down.

Tightening torque, 11 11 3AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

11 22 000 REMOVING AND INSTALLING/REPLACING FLYWHEEL (N62/N62TU)

Special tools required

1. 11 4 180
2. 11 9 260
3. 11 9 262
4. 11 9 263
5. 11 9 264

Necessary preliminary tasks

1. Remove automatic transmission . See «24 00 023 REMOVING AND INSTALLING AUTOMATIC TRANSMISSION (GA6HP26Z) N62TU»(/bmw/x5/e70-2006-2010/remont/automatic-trans/#automatic-transmission-repair__24-00-023-removing-and-installing) .

Automatic transmissions only

Block flywheel (1) with special tools 11 9 260 / 11 9 263 / 11 9 264 .

Unfasten flywheel screws.

Remove flywheel (1).

Installation

Clean threads on flywheel screws in crankshaft.

Flywheel (1) is secured with an alignment pin.

Fit flywheel (1).

Fit new flywheel screws.

Tightening torque 11 22 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 504

Manual transmissions only

Block flywheel (dual-mass) with special tools 11 9 260 / 11 9 262 / 11 9 263 .

Release flywheel screws with special tool 11 4 180 .

Installation

Flywheel (1) is secured with an alignment pin.

Tightening torque 11 22 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 505

11 23 010 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER (N62/N62TU)

Necessary preliminary tasks

1. Remove alternator drive belt . See «11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-010-replacing-alternator-drive) .
2. Remove A/C compressor drive belt . See «11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT WITH BELT TENSIONER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-050-replacing-ac-compressor) .
3. Remove fan cowl.

Release bolts and remove vibration damper (1).

Scheme 506

Installation

Vibration damper is secured on hub with an alignment pin (4).

Scheme 507

Installation

Fit bore (2) in vibration damper (1) on alignment pin in hub.

Fit disk (3).

Replace screws.

Tightening torque 11 23 3AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 508

11 23 031 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER HUB (N62/N62TU)

Special tools required

1. 11 3 460
2. 11 9 451
3. 11 9 452
4. 11 9 453
5. 11 9 454

Necessary preliminary tasks

1. Remove design cover, if equipped.
2. Remove fan clutch (E65). See «11 52 020 REMOVING AND INSTALLING OR REPLACING FAN CLUTCH (N62)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-52-020-removing-and-installing) .
3. Remove fan cowl (E65)
4. Remove drive belt for alternator. See «11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-010-replacing-alternator-drive) .
5. Remove drive belt for A/C compressor. See «11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT WITH BELT TENSIONER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-050-replacing-ac-compressor) .
6. Remove front engine underguard
7. Remove tensioner from A/C compressor drive belt (E65)
8. Remove vibration damper . See «11 23 010 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-23-010-removing-and-installingreplacing) .

Screw special tool 11 9 451 in conjunction with special tool 11 9 452 to vibration damper hub and to oil sump.

Release central bolt (1).

Remove special tools.

Remove hub for vibration damper. See 11 23 031 REMOVING AND INSTALLING/REPLACING VIBRATION DAMPER HUB (N62/N62TU) .

Scheme 509

Installation

Check vibration damper hub and radial seal, replace if necessary.

Align groove in vibration damper hub to parallel key and install vibration damper hub.

Replace central bolt (1).

Tighten down central bolt (1) to joining torque.

Tightening torque 11 23 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installation

Fit special tool 11 3 460 on special tool 11 9 451 .

Note. Special tool 11 3 460 is magnetic.

Scheme 510

Installation

Select 0° position and secure special tool 11 9 453 with clamping screw on socket (special tool 11 9 454 ).

Tighten the central screw with torsion angle.

Tightening torque 11 23 2AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 511

Assemble engine.

11 24 571 REPLACING ALL CONROD BEARINGS (N62/N62TU)

Special tools required

1. 00 2 590
2. 00 9 120
3. 11 2 110

(piston removed)

The letter (1) denotes the crankshaft construction stage.

The numbers (2) denote the bearing shell classification for the relevant bearing position from 1 to 5 (main bearing cap).

Install new conrod bearing shells.

Insert one red and one blue bearing shell for each conrod.

Install piston . See 11 25 530 REMOVING AND INSTALLING/REPLACING ALL PISTONS (N62TU) .

Scheme 512

Check connecting-rod bearing clearance

Piston in BDC position.

Fit special tool 00 2 590 (Plastigage Type PG 1) to the oil-free crankshaft.

Fit bearing caps so that pair numbers match up.

Scheme 513

Use conrod bolts to check conrod bearing clearance.

Tighten down conrod bolts with special tool 00 9 120 or special tool 11 2 110.

Tightening torque 11 24 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 514

Remove bearing cap and read off bearing play at width of flattened plastic thread with assistance of measurement scale.

Conrod bearing clearance.

Scheme 515

1. Remove plastic thread.
2. Lubricate crankshaft and bearing shells.
3. Install new conrod bolts.

Tighten down conrod bolts with special tool 00 9 120 or special tool 11 2 110.

Tightening torque 11 24 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

11 25 530 REMOVING AND INSTALLING/REPLACING ALL PISTONS (N62TU)

Special tools required

1. 00 9 120
2. 11 5 430
3. 11 5 440
4. 11 5 450

Necessary preliminary tasks

1. (engine removed)
2. Install engine on assembly stand.
3. Remove both cylinder heads . See «11 12 105 REMOVING AND INSTALLING LEFT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-105-removing-and-installing) and «11 12 106 REMOVING AND INSTALLING RIGHT CYLINDER HEAD (N62 FROM 9/03 AND N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-106-removing-and-installing) .
4. Removing oil pan . See «11 13 010 REMOVING AND INSTALLING/REPLACING OIL SUMP TOP SECTION (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-13-010-removing-and-installingreplacing) and «11 13 020 REMOVING AND INSTALLING/REPLACING OIL SUMP BOTTOM SECTION (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-13-020-removing-and-installingreplacing) .
5. Remove oil pump . See «11 41 000 REMOVING AND INSTALLING/REPLACING OIL PUMP (N62)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-41-000-removing-and-installingreplacing) .

In event of heavy oil carbon residue

Carefully remove oil carbon residue from cylinder wall.

Scheme 516

Scheme 517

Unscrew conrod bearing cover.

Scheme 518

Insert special tool 11 5 440 in conrod.

Screw special tool 11 5 440 into conrod with screw (1).

Remove conrod with piston from cylinder head side.

Scheme 519

Lever out circlip with special tool 11 4 492 in direction of arrow and press out piston pin.

Scheme 520

If necessary, replace connecting rods.

Note. The conrods can also be replaced individually.

The piston pin must be able to be pressed through the liner by hand with little force and must not display any significant play.

Scheme 521

Prior to installation, measure piston installation clearance

Measure piston diameter with micrometer at measuring point A from lower edge of piston and offset by 90° to piston pin axis.

Measuring point A . See ENGINE - TECHNICAL DATA - V8 (N62TU) .

Scheme 522

Adjust micrometer to cylinder bore of engine block. Set internal caliper on micrometer to zero. Measure bottom, center and top of cylinder bore in direction of travel and direction of engine rotation.

Diameter of cylinder bore . See ENGINE - TECHNICAL DATA - V8 (N62TU) .

Piston installation clearance . See ENGINE - TECHNICAL DATA - V8 (N62TU) .

Total permissible wear tolerance . See ENGINE - TECHNICAL DATA - V8 (N62TU) .

Scheme 523

Note. The pistons and conrods of cylinders 1 to 8 are identical.

Cylinder bank 1 to 4

Mount conrod on piston in such a way that arrow on piston points upwards and marking on conrod points upwards .

Scheme 524

Cylinder bank 5 to 8

Mount conrod on piston in such a way that arrow on piston points downwards and marking on conrod points upwards .

Install conrod bearing . See 11 24 571 REPLACING ALL CONROD BEARINGS (N62/N62TU) .

Install retaining ring.

Scheme 525

Offset the contact points (1) of the piston rings by approx. 120° to each other but do not position above the piston pin boss.

Note. See illustration. Illustration shows N52.

Scheme 526

Installation

B40 and B48

Insert special tools 11 5 440 in conrod.

Installation

B40

Prepare piston with rings with special tool 11 5 450 .

Scheme 527

B40

Lightly coat pistons and piston rings with oil. Offset the contact points of the piston rings by approx. 120° to each other but do not position above the piston pin boss.

Slide in special tool 11 5 450 with piston (1).

Install piston so that arrow points to camshaft drive.

Press in piston with finger force only.

Scheme 528

B48

Keep piston rings compressed with special tool 11 5 430.

Install piston so that arrow points to camshaft drive.

Press in piston with finger force only.

Scheme 529

Attach crankpin to connecting rod.

Remove special tools 11 5 450 .

Note. For purposes of clarity, the pairing letters (1) are shown on the removed conrod.

Scheme 530

Apply light coat of oil to connecting-rod bearing shells.

Fit bearing cap so that pairing letters match up.

Install new conrod bolts.

Scheme 531

Secure conrod with special tool 00 9 120 .

Tightening torque 11 24 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Assemble engine.

11 25 671 REPLACING PISTON RINGS ON ALL PISTONS (N62)

(piston removed)

Measuring axial clearance of piston rings in piston ring groove (1 and 2)

See 11 24 571 REPLACING ALL CONROD BEARINGS (N62/N62TU) .

Note. It is not possible to measure the axial clearance of the oil scraper rings.

Scheme 532

Remove piston rings (1 and 2) with piston ring compressing pliers.

Note. It might not be possible to find the identification on used piston rings.

Put aside piston rings in correct sequence and installation position.

New pistons may only be installed together with new piston rings.

Scheme 533

Measure end clearance. See 11 24 571 REPLACING ALL CONROD BEARINGS (N62/N62TU) .

Scheme 534

Note. Picture shows a schematic representation.

Installation

Install piston rings with "TOP" to piston top.

1. Plain compression ring
2. Stepped compression ring "Top"
3. Steel band ring with support spring

Offset the contact points of the piston rings by approx. 120° to each other but do not position above the piston pin boss.

Scheme 535

Installation

Oil control ring comprises two steel band rings (1) and a support spring (2).

Insert support spring (2) into piston ring groove.

Then fit steel band rings (1) so that contact joints are offset approx. 120°.

Scheme 536

11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)

Special tools required

1. 11 3 340

Necessary preliminary tasks

1. Remove fan clutch with fan impeller (E65/66). See «11 52 020 REMOVING AND INSTALLING OR REPLACING FAN CLUTCH (N62)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-52-020-removing-and-installing) .

Note. If the drive belt is to be reused: Mark direction of travel and reinstall drive belt in same direction of travel.

Pretension belt tensioner slowly and carefully with a Torx socket as far as it will go and secure with special tool 11 3 340 .

Remove drive belt.

Scheme 537

Put on the drive belt.

Remove special tool 11 3 340 .

Installation

Check that drive belt is correctly positioned on pulleys.

Scheme 538

11 28 050 REPLACING A/C COMPRESSOR DRIVE BELT WITH BELT TENSIONER (N62/N62TU)

Special tools required

1. 11 3 340

Necessary preliminary tasks

1. Remove alternator drive belt . See «11 28 010 REPLACING ALTERNATOR DRIVE BELT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-010-replacing-alternator-drive) .
2. Remove engine splash guard.

Note. If the drive belt is to be reused: Mark direction of travel and reinstall drive belt in same direction of travel.

Pretension belt tensioner slowly and carefully with a Torx socket as far as it will go and secure with special tool 11 3 340 .

Remove drive belt.

Scheme 539

Put on the drive belt.

Remove special tool 11 3 340 .

Installation

Check that drive belt is correctly positioned on pulleys.

Scheme 540

11 28 050 Replacing A/C compressor drive belt (N62TU)

Necessary preliminary tasks

1. Remove «ALTERNATOR DRIVE BELT»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-28-010-replacing-alternator-drive) .
2. Remove engine splash guard.

Installation: If reusing the drive belt, mark the direction of rotation and reinstall in the same direction. Check drive belt for coolant and oil residues, replace if necessary.

Release screw (1) by 180°.

Scheme 541

Release screw (1) on tensioning pulley (2).

Scheme 542

Release tensioning pulley (1) until drive belt can be removed. Remove drive belt (2) towards front.

Scheme 543

Check installation position of drive belt.

11 31 032 REMOVING AND INSTALLING/REPLACING LEFT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 472
3. 11 9 473
4. 11 9 474
5. 11 9 475
6. 11 9 480
7. 11 9 490

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 5 to 8
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 5 to 8
5. Remove left inlet and exhaust adjustment units . See «11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-047-removing-and-installingreplacing) .

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Scheme 544

Note. Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Scheme 545

Release 8 nuts of bearing bracket (1) from outside to inside.

Scheme 546

Note. Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Scheme 547

Clamp special tool 11 9 470 as illustrated in a vice.

Scheme 548

Carefully lift out bearing bracket (1).

Scheme 549

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Scheme 550

Note. Lower section of bearing bracket (1) remains on cylinder head.

Scheme 551

Note. This work step will only be necessary if after the inlet camshaft has been removed the eccentric shaft is also to be removed.

If necessary, remove eccentric shaft sensor (2).

Scheme 552

Note. Removal of the intermediate levers and torsion springs is described on the 8th cylinder. The same procedure is applicable to cylinders 5 to 7.

Raise one end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Scheme 553

Attach special tool 11 9490 to end of torsion spring.

Support end of torsion spring protected with special tool 11 9490 on inlet camshaft.

Scheme 554

Scheme 555

Raise second end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Scheme 556

Attach special tool 11 9490 to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Scheme 557

Release screw (1).

Scheme 558

Remove torsion spring (1) and special tool 11 9 490 .

Scheme 559

Remove intermediate levers and torsion springs of cylinders 5 to 7 according to the same procedure and set down in an orderly fashion.

Unscrew nut (special tool 11 9 473 ).

Scheme 560

Note. Bearing caps are marked in graphic with R E2 to R E5.

Remove bearing caps R E2 to R E5 and place to one side in order.

Scheme 561

Lift out inlet camshaft (1).

Scheme 562

Note. Further tasks: The section Removing and installing left eccentric shaft contains important installation instructions.

If necessary, replace plain compression rings (1).

Plain compression rings (1) are engaged at joint.

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

Scheme 563

Note. Inlet camshaft of cylinder bank 5 to 8 is marked with "EIN 58".

If necessary, replace sensor gear (1).

Release screw (2) and remove sensor gear (1).

Scheme 564

Installation

Installation of inlet camshaft is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Note. Camshaft has a groove and sensor gear has a lug for fastening purposes.

Scheme 565

Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque 11 31 14AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installing plain compression rings (1)

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Scheme 566

Insert inlet camshaft (1) so that cams point upwards at cylinder 5 as shown in graphic.

Scheme 567

Make sure bearing shells (1) of eccentric shaft are engaged in bearing bracket.

Note. Bearing shell (1) is guided in a groove in bearing cap.

Scheme 568

Check dowel sleeves (1) for damage and correct installation position.

Scheme 569

Note. Bearing caps are marked in graphic with R E2 to R E5.

Fit bearing caps R E2 to R E5.

Note. Initially tighten special tool 11 9 473 without play only.

Secure bearing bracket and bearing cap with nut (special tool 11 9 473 ).

Note. The mounting of the bearing bracket described later can only be performed if the first bearing of the inlet camshaft is aligned with special tool 11 9 472 .

Fit special tool 11 9 472 as shown in graphic and align inlet camshaft.

Scheme 570

Fit centering sleeves (special tool 11 9 475 ) and align special tool 11 9 472 to bearing caps 2 and 3.

Scheme 571

Insert special tool 11 9 474 and initially tighten without play.

Note. Special tools 11 9 472 , 11 9 474 and 11 9 475 remain fitted until all torsion springs and intermediate levers have been installed.

Scheme 572

Note. Installation of the intermediate levers and torsion springs is described on the 8th cylinder. The same procedure is applicable to cylinders 5 to 7.

Attach special tool 11 9 490 to ends of torsion spring.

Install torsion spring (1).

Insert screw (1) and tighten down.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Raise torsion spring (1) with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Raise second end of torsion spring with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Install eccentric shaft sensor (2).

Insert screws and tighten down eccentric shaft sensor (2).

Remove special tool 11 9 474 .

Scheme 573

Remove special tool 11 9 472 and special tool 11 9 475 .

Scheme 574

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Scheme 575

Align rockers (1) straight.

Scheme 576

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Scheme 577

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft. . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 472
3. 11 9 473
4. 11 9 474
5. 11 9 475
6. 11 9 480
7. 11 9 490

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Remove servomotor for right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 1 to 4
3. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 1 to 4
5. Remove right inlet and exhaust adjustment units . See «11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-048-removing-and-installingreplacing) .

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Scheme 578

Note. Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Scheme 579

Release 8 nuts of bearing bracket (1) from outside to inside.

Scheme 580

Note. Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Scheme 581

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Scheme 582

Note. Lower section of bearing bracket (1) remains on cylinder head.

Scheme 583

Note. This work step will only be necessary if after the inlet camshaft has been removed the eccentric shaft is also to be removed.

If necessary, remove eccentric shaft sensor (2).

Scheme 584

Note. Removal of the intermediate levers and torsion springs is described on the 4th cylinder. The same procedure is applicable to cylinders 1 to 3.

Raise one end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Scheme 585

Attach special tool 11 9 490 to end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Scheme 586

Raise second end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Scheme 587

Attach special tool 11 9 490 to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Scheme 588

Release screw (1).

Scheme 589

Remove torsion spring (1) and special tool 11 9 490 .

Scheme 590

Remove intermediate levers and torsion springs of cylinders 1 to 3 according to the same procedure and set down in an orderly fashion.

Unscrew nut (special tool 11 9 473 ).

Scheme 591

Note. Bearing caps are marked in graphic with L E2 to L E5.

Remove bearing caps L E2 to L E5 and place to one side in order.

Scheme 592

Lift out inlet camshaft (1).

Scheme 593

Note. Further tasks: The section Removing and installing right eccentric shaft contains important installation instructions. See 11 37 008 REMOVING AND INSTALLING/REPLACING RIGHT ECCENTRIC SHAFT (N62 FROM 9/03 AND N62TU) .

If necessary, replace plain compression rings (1).

Plain compression rings (1) are engaged at joint.

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

Note. Inlet camshaft of cylinder bank 1 to 4 is marked with "EIN 14".

If necessary, replace sensor gear (1).

Release screw (2) and remove sensor gear (1).

Scheme 594

Installation

Installation of inlet camshaft is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Note. Camshaft has a groove and sensor gear has a lug for fastening purposes.

Scheme 595

Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque 11 31 14AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installing plain compression rings (1)

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Insert inlet camshaft (1) so that cams point upwards at 4th cylinder as shown in graphic.

Scheme 596

Make sure bearing shells (1) of eccentric shaft are engaged in bearing bracket.

Note. Bearing shell (1) is guided in a groove in bearing cap.

Scheme 597

Check dowel sleeves (1) for damage and correct installation position.

Note. Bearing caps are marked in graphic with L E2 to L E5.

Fit bearing caps L E2 to L E5.

Note. Initially tighten special tool 11 9 473 without play only.

Secure bearing bracket and bearing cap with nut (special tool 11 9 473 ).

Note. The mounting of the bearing bracket described later can only be performed if the first bearing of the inlet camshaft is aligned with special tool 11 9 472 .

Fit special tool 11 9 472 as shown in graphic and align inlet camshaft.

Scheme 598

Fit centering sleeves (special tool 11 9 475 ) and align special tool 11 9 472 to bearing caps 2 and 3.

Scheme 599

Insert special tool 11 9 474 and initially tighten without play.

Note. Special tools 11 9 472 , 11 9 474 and 11 9 475 remain fitted until all torsion springs and intermediate levers have been installed.

Scheme 600

Note. Installation of the intermediate levers and torsion springs is described on the 4th cylinder.

The same procedure is applicable to cylinders 1 to 3.

Attach special tool 11 9 490 to ends of torsion spring.

Install torsion spring (1).

Insert screw (1) and tighten down.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Raise torsion spring (1) with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Raise second end of torsion spring with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Install eccentric shaft sensor (2).

Insert screws and tighten down eccentric shaft sensor (2).

Remove special tool 11 9 474 .

Scheme 601

Remove special tool 11 9 472 and special tool 11 9 475 .

Scheme 602

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in graphic.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Scheme 603

Install inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft. See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 31 036 REMOVING AND INSTALLING/REPLACING LEFT EXHAUST CAMSHAFT (N62/N62TU)

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 5 to 8
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 5 to 8
5. Remove left inlet and exhaust adjustment units . See «11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-047-removing-and-installingreplacing) .

Remove slide rail (1).

Scheme 604

Rotate exhaust camshaft at hexagon head until exhaust cam on cylinder (6) is facing upwards.

Scheme 605

Note. Bearing caps of exhaust camshaft are marked on cylinder bank 5 to 8 with R A1 to R A5 from inlet side.

Release nuts and remove bearing cap R A1.

Scheme 606

Note. Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Release nuts on bearing caps R A2 to R A5.

Scheme 607

Remove bearing caps R A2 to R A5.

Scheme 608

Remove exhaust camshaft (1).

Scheme 609

If necessary, replace plain compression rings (1).

Plain compression rings (1) are engaged at joint.

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

If necessary, replace sensor gear (1).

Release screw (2) and remove sensor gear (1).

Scheme 610

Installation

Installation of exhaust camshaft is described separately from removal.

Clean all bearings and cams of exhaust camshaft and lubricate with engine oil.

Note. Camshaft has a groove and sensor gear has a lug for fastening purposes.

Scheme 611

Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque 11 31 14AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installing plain compression rings (1)

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Note. Rocker arms (1) of exhaust camshaft are of same design as rocker arms of inlet camshaft.

The classification 3 shown in the graphic has no effect on the function on the exhaust camshaft.

Scheme 612

Used rocker arms (1) may only be reused in the same position.

Align rockers (1) straight.

Scheme 613

Lubricate exhaust camshaft and bearing caps with engine oil.

Install exhaust camshaft (1).

Rotate exhaust camshaft (1) until exhaust cam on cylinder 6 is facing upwards.

Scheme 614

Check dowel sleeves (2) for damage and correct installation position.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Scheme 615

Note. Bearing caps of exhaust camshaft are marked on cylinder bank 5 to 8 with R A1 to R A5 from inlet side.

Fit bearing caps R A2 to R A5.

Note. Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Insert nuts and tighten by hand without play.

Tighten down nuts on bearing caps R A2 to R A5 in 1/2 turn increments evenly from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap R A1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Note. A gasket (2) is installed between cylinder head and slide rail (1).

Replace gasket (2) and preinstall on slide rail (1).

Scheme 616

Install slide rail (1) with gasket, insert screw and tighten down.

Rotate exhaust camshaft against direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Scheme 617

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Assemble engine.

11 31 038 REMOVING AND INSTALLING/REPLACING RIGHT EXHAUST CAMSHAFT (N62/N62TU)

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Remove servomotor for right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 1 to 4
3. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 1 to 4
5. Remove right inlet and exhaust adjustment units . See «11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-048-removing-and-installingreplacing) .

Remove slide rail (1).

Scheme 618

Rotate exhaust camshaft at hexagon head against direction of rotation until exhaust cam on cylinder (2) faces upwards.

Scheme 619

Note. Bearing caps of exhaust camshaft are marked on cylinder bank 1 to 4 with L A1 to L A5 from inlet side.

Release nuts and remove bearing cap L A1.

Scheme 620

Note. Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Release nuts on bearing caps L A2 to L A5.

Scheme 621

Remove bearing caps L A2 to L A5.

Scheme 622

Remove exhaust camshaft (1).

Scheme 623

If necessary, replace plain compression rings (1).

Plain compression rings (1) are engaged at joint.

Press compression ring (1) on one side into groove, pull up on other side and remove catch.

Carefully pull compression ring (1) apart and remove towards front.

If necessary, replace sensor gear (1).

Release screw (2) and remove sensor gear (1).

Scheme 624

Installation

Installation of exhaust camshaft is described separately from removal.

Clean all bearings and cams of exhaust camshaft and lubricate with engine oil.

Note. Camshaft has a groove and sensor gear has a lug for fastening purposes.

Scheme 625

Fit sensor gear (1) and align to groove in camshaft.

Insert screw (2) and tighten down.

Tightening torque 11 31 14AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Installing plain compression rings (1)

Carefully pull compression ring (1) apart and install from front.

Press compression ring (1) on one side into groove, install catch on other side.

Note. Rocker arms (1) of exhaust camshaft are of same design as rocker arms of inlet camshaft. The classification 3 shown in the graphic has no effect on the function on the exhaust camshaft.

Used rocker arms (1) may only be reused in the same position.

Align rockers (1) straight.

Lubricate exhaust camshaft and bearing caps with engine oil.

Install exhaust camshaft (1).

Rotate exhaust camshaft (1) until exhaust cam on cylinder 2 is facing upwards.

Scheme 626

Check dowel sleeves (2) for damage and correct installation position.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Scheme 627

Note. Bearing caps of exhaust camshaft are marked on cylinder bank 1 to 4 with L A1 to L A5 from inlet side.

Fit bearing caps L A2 to L A5.

Note. Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Insert nuts and tighten by hand without play.

Tighten down nuts on bearing caps L A2 to L A5 in 1/2 turn increments evenly from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap L A1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Note. A gasket (2) is installed between cylinder head and slide rail (1).

Replace gasket (2) and preinstall on slide rail (1).

Scheme 628

Install slide rail (1) with gasket, insert screw and tighten down.

Rotate exhaust camshaft against direction of rotation until cam on 1st cylinder points upwards at an angle as shown in graphic.

Scheme 629

Install inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Assemble engine.

11 31 052 REPLACING BOTH TIMING CHAINS (N62/N62TU)

Special tools required

1. 11 2 001
2. 11 2 002
3. 11 2 003
4. 11 2 007

Necessary preliminary tasks

1. Remove lower timing case cover . See «11 14 110 REMOVING AND INSTALLING BOTTOM TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-110-removing-and-installing) .

Remove timing chain (1).

Remove timing chain (5).

Release screws (7).

Remove guide rails (3 and 6).

Remove tensioning rails (2 and 4).

Installation

Maintain tension of timing chains when installing timing case cover.

Observe sparking protection on timing case cover.

Make sure timing chain (1) is correctly installed when placing it in guide rail (3).

Scheme 630

Attach special tools 11 2 001 and 11 2 002 to crankshaft.

Insert special tool 11 2 007 and remove sprocket wheel with special tool 11 2 003 .

Installation

Check sprocket wheels for wear, replace if necessary.

Heat sprocket wheel to 60°C.

Scheme 631

Assemble engine.

11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 461
3. 11 9 462

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .

Remove all spark plugs on cylinder bank 5 to 8.

If necessary, remove fan cowl.

Release screw (1).

Unclip oil line (3) from retainers (2) and remove.

Scheme 632

Crank engine at central bolt in direction of rotation to firing TDC position of 1st cylinder.

Note. With 1st cylinder in firing TDC position, cams of inlet and exhaust camshafts at 5th cylinder point upwards at an angle as shown in illustration.

Scheme 633

Note. Alignment hole for TDC position is at front on timing case cover.

Crank engine at central bolt and secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Scheme 634

Checking locking of inlet adjustment unit in initial position

Engage hexagon head of inlet camshaft and attempt to rotate inlet camshaft carefully against direction of rotation.

If there is no fixed connection between inlet camshaft and inlet adjustment unit, rotate inlet camshaft against direction of rotation as far as it will go.

The inlet adjustment unit is locked in the initial position when the inlet camshaft is non-positively connected to the inlet adjustment unit.

Scheme 635

Checking locking of exhaust adjustment unit in initial position

Engage hexagon head of exhaust camshaft and attempt to rotate exhaust camshaft carefully in direction of rotation.

If there is no fixed connection between exhaust camshaft and exhaust adjustment unit, rotate exhaust camshaft in direction of rotation as far as it will go.

The exhaust adjustment unit is locked in the initial position when the exhaust camshaft is non-positively connected to the exhaust adjustment unit.

Scheme 636

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Scheme 637

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

If necessary, adjust camshaft timing on left side . See 11 31 573 ADJUSTING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU) .

Scheme 638

Remove all special tools.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

11 31 071 CHECKING CAMSHAFT TIMING ON RIGHT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 461
3. 11 9 462

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Remove servomotor from right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
2. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
3. Remove all spark plugs on cylinder bank 1 to 4
4. If necessary, remove fan cowl.

Release screw (1).

Unclip oil line (3) from retainers (2) and remove.

Scheme 639

Crank engine at central bolt in direction of rotation to firing TDC position of 1st cylinder.

Note. In firing TDC position, cam of exhaust camshaft at 1st cylinder points upwards at an angle.

Cam of inlet camshaft points downwards at an angle

Scheme 640

Note. Alignment hole for TDC position is at front on timing case cover.

Crank engine at central bolt and secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Checking locking of inlet adjustment unit in initial position

Engage hexagon head of inlet camshaft and attempt to rotate inlet camshaft carefully against direction of rotation.

If there is no fixed connection between inlet camshaft and inlet adjustment unit, rotate inlet camshaft against direction of rotation as far as it will go.

The inlet adjustment unit is locked in the initial position when the inlet camshaft is non-positively connected to the inlet adjustment unit.

Scheme 641

Checking locking of exhaust adjustment unit in initial position

Engage hexagon head of exhaust camshaft and attempt to rotate exhaust camshaft carefully in direction of rotation.

If there is no fixed connection between exhaust camshaft and exhaust adjustment unit, rotate exhaust camshaft in direction of rotation as far as it will go.

The exhaust adjustment unit is locked in the initial position when the exhaust camshaft is non-positively connected to the exhaust adjustment unit.

Scheme 642

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Scheme 643

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

If necessary, adjust camshaft timing on right side . See 11 31 574 ADJUSTING CAMSHAFT TIMING ON RIGHT SIDE (N62/N62TU) .

Scheme 644

Remove all special tools.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

11 31 573 ADJUSTING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Check camshaft timing on left side . See «11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62) .
2. Remove left timing case cover . See «11 14 080 REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-080-removing-and-installing) .

Note. When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Scheme 645

Get special tool kit 11 9 460 ready for securing camshafts.

Note. Special tool 11 9 461 for securing inlet camshaft.

Special tool 11 9 462 for securing exhaust camshaft.

Special tool 11 9 463 (holder with screw).

Scheme 646

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Scheme 647

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Scheme 648

Note. When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 649

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Scheme 650

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Scheme 651

Note. When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 652

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Remove special tool 11 9 190 .

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Assemble engine.

11 31 574 ADJUSTING CAMSHAFT TIMING ON RIGHT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Are described in the operation " «CHECKING CAMSHAFT TIMING ON RIGHT SIDE»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-31-071-checking-camshaft-timing) " .
2. Remove right timing case cover . See «11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-085-removing-and-installing) .

Note. When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Scheme 653

Get special tool kit 11 9 460 ready for securing camshafts.

Note. Special tool 11 9 461 for securing inlet camshaft.

Special tool 11 9 462 for securing exhaust camshaft.

Special tool 11 9 463 (holder with screw).

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Scheme 654

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Scheme 655

Note. When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 656

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Scheme 657

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Scheme 658

Note. When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Scheme 659

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Remove special tool 11 9 190 .

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Assemble engine.

11 33 516 REMOVING AND INSTALLING/REPLACING ROCKER ARMS ON LEFT INLET SIDE (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 473

(cylinder bank 5 to 8)

Removal of rocker arms is described separately from installation.

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 5 to 8
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 5 to 8
5. Remove left inlet and exhaust adjustment units . See «11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-047-removing-and-installingreplacing) .

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

Remove rocker arms (1) on inlet side and set aside in neat order.

Replacement only

When replacing rocker arms (1) on inlet side

Rocker arms have new tolerance classes and must be assigned to the old tolerance classes and fitted in the same position.

Old = new 2A

1

Old = new 2A

2

Old = new 2B

3

Old = new 2B

4

Scheme 660

Installation

Installation of rocker arms is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Install rocker arms (1) on inlet side.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft. . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 33 517 REMOVING AND INSTALLING/REPLACING ROCKER ARMS ON RIGHT INLET SIDE (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 473

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Removal of rocker arms is described separately from installation.
2. Remove servomotor for right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
3. Remove ignition coils on cylinder bank 1 to 4
4. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
5. Remove spark plugs on cylinder bank 1 to 4
6. Remove right inlet and exhaust adjustment units . See «11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-048-removing-and-installingreplacing) .

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Remove rocker arms (1) on inlet side and set aside in neat order.

Replacement only

When replacing rocker arms (1) on inlet side

Rocker arms have new tolerance classes and must be assigned to the old tolerance classes and fitted in the same position.

Old = new 2A

1

Old = new 2A

2

Old = new 2B

3

Old = new 2B

4

Installation

Installation of rocker arms is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Install rocker arms (1) on inlet side.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft. See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 37 012 REMOVING AND INSTALLING/REPLACING LEFT INTERMEDIATE LEVERS (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 472
3. 11 9 473
4. 11 9 474
5. 11 9 475
6. 11 9 480
7. 11 9 490

(cylinder bank 5 to 8)

Removal of intermediate levers is described separately from installation.

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 5 to 8
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 5 to 8
5. Remove left inlet and exhaust adjustment units . See «11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-047-removing-and-installingreplacing) .

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Note. Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

Note. The mounting of the bearing bracket described later can only be carried out if the inlet camshaft has not been axially displaced.

Special tools 11 9 472 and 11 9 475 prevent the inlet camshaft from rotating and moving while the intermediate levers are installed.

Fit special tool 11 9 472 and secure with special tool 11 9 475 .

Insert special tool 11 9 474 and initially tighten without play.

Note. Removal of intermediate levers is described on 8th cylinder.

The same procedure is applicable to cylinders 5 to 7.

Raise one end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Attach special tool 11 9 490 to end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Raise second end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Attach special tool 11 9 490 to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Installation

Installation of intermediate levers is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Raise torsion spring (1) with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Raise second end of torsion spring with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Remove special tool 11 9 474 .

Remove special tools 11 9 472 and special tools 11 9 475 .

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft. . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 37 014 REMOVING AND INSTALLING/REPLACING RIGHT INTERMEDIATE LEVERS (N62 FROM 9/03 AND N62TU)

Special tools required

1. 11 9 470
2. 11 9 472
3. 11 9 473
4. 11 9 474
5. 11 9 475
6. 11 9 480
7. 11 9 490

(cylinder bank 1 to 4)

Removal of intermediate levers is described separately from installation.

Necessary preliminary tasks

1. Remove servomotor from right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 1 to 4
3. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 1 to 4
5. Remove right inlet and exhaust adjustment units . See «11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-048-removing-and-installingreplacing) .

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Note. Rocker arms are freely accessible after bearing bracket has been removed.

Do "not" remove rocker arm (1) on inlet side.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

Note. The mounting of the bearing bracket described later can only be carried out if the inlet camshaft has not been axially displaced.

Special tools 11 9 472 and 11 9 475 prevent the inlet camshaft from rotating and moving while the intermediate levers are installed.

Fit special tool 11 9 472 and secure with special tool 11 9 47 5.

Insert special tool 11 9 474 and initially tighten without play.

Note. Removal of intermediate levers is described on 4th cylinder. The same procedure is applicable to cylinders 1 to 3.

Raise one end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Attach special tool 11 9 490 to end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Raise second end of torsion spring (1) with special tool 11 9 480 .

Lift out intermediate lever (2) and set down in an orderly fashion.

Attach special tool 11 9 490 to second end of torsion spring.

Support end of torsion spring protected with special tool 11 9 490 on inlet camshaft.

Installation

Removal of intermediate levers is described separately from installation.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Lubricate all sliding surfaces on intermediate lever (2) with engine oil.

Raise torsion spring (1) with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Raise second end of torsion spring with special tool 11 9 480 .

Remove special tool 11 9 490 .

Hold torsion spring (1) with special tool 11 9 480 .

Install intermediate lever (2) from above.

Insert end of torsion spring (1) into guide on intermediate lever (2).

Remove special tool 11 9 474 .

Remove special tools 11 9 472 and special tools 11 9 475 .

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft. See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

Special tools required

1. 11 9 470
2. 11 9 473

(cylinder bank 5 to 8)

Removal of rocker arms is described separately from installation.

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove ignition coils on cylinder bank 5 to 8
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove spark plugs on cylinder bank 5 to 8
5. Remove left inlet and exhaust adjustment units . See «11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-047-removing-and-installingreplacing) .

Rotate inlet camshaft against direction of rotation until lettering (1) on 8th cylinder points upwards in cylinder axis and cam is horizontal.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 5 to 8 with R E1 to R E5 from inlet side.

Release nuts and remove bearing cap R E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

Remove rocker arms (1) on inlet side and set aside in neat order.

Replacement only

When replacing rocker arms (1) on inlet side

Rocker arms have new tolerance classes and must be assigned to the old tolerance classes and fitted in the same position.

Old = new 2A

1

Old = new 2A

2

Old = new 2B

3

Old = new 2B

4

Installation

Installation of rocker arms is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Install rocker arms (1) on inlet side.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap R E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft in direction of rotation until cam on 5th cylinder points upwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on left side . See 11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 5 to 8.

Install left cylinder head cover . See 11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 5 to 8.

Install servomotor for left eccentric shaft. . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

Special tools required

1. 11 9 470
2. 11 9 473

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Removal of rocker arms is described separately from installation.
2. Remove servomotor for right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
3. Remove ignition coils on cylinder bank 1 to 4
4. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
5. Remove spark plugs on cylinder bank 1 to 4
6. Remove right inlet and exhaust adjustment units . See «11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-36-048-removing-and-installingreplacing) .

Rotate inlet camshaft in direction of rotation until cam on 1st cylinder is positioned horizontally as shown in illustration.

Note. Bearing caps of inlet camshaft are marked on cylinder bank 1 to 4 with L E1 to L E5 from inlet side.

Release nuts and remove bearing cap L E1.

Release 8 nuts of bearing bracket (1) from outside to inside.

Clamp special tool 11 9 470 as illustrated in a vice.

Carefully lift out bearing bracket (1).

Place bearing bracket (1) with inlet camshaft and eccentric shaft as illustrated on special tool 11 9 470 .

Secure bearing bracket (1) with a nut (special tool 11 9 473 ).

Note. Lower section of bearing bracket (1) remains on cylinder head.

When replacing rocker arms (1) on inlet side: install rocker arms of the same tolerance class in the same position.

Remove rocker arms (1) on inlet side and set aside in neat order.

Replacement only

When replacing rocker arms (1) on inlet side

Rocker arms have new tolerance classes and must be assigned to the old tolerance classes and fitted in the same position.

Old = new 2A

1

Old = new 2A

2

Old = new 2B

3

Old = new 2B

4

Installation

Installation of rocker arms is described separately from removal.

Clean all bearings and cams of inlet camshaft and lubricate with engine oil.

Ends of compression rings (1) point upwards.

Make sure compression rings (1) are engaged at ends.

Install rocker arms (1) on inlet side.

Align rockers (1) straight.

Remove special tool 11 9 473 .

Remove bearing bracket (1) from special tool 11 9 470 .

Lower bearing bracket (1) from above and carefully bring into contact with cylinder head.

Insert nuts and tighten by hand without play.

Tighten down nuts from inside to outside.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit bearing cap L E1 in such a way that marking is legible from inlet side.

Install nuts and tighten down.

Tightening torque 11 31 1AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Rotate inlet camshaft at hexagon head against direction of rotation until cam on 1st cylinder points downwards at an angle as shown in illustration.

Note. The marking (1) on the hexagon drive of the inlet camshaft faces upwards.

Install inlet and exhaust adjustment unit on right side . See 11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU) .

Install spark plugs on cylinder bank 1 to 4.

Install right cylinder head cover . See 11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU) .

Install ignition coils on cylinder bank 1 to 4.

Install servomotor for right eccentric shaft. See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Assemble engine.

11 34 552 REMOVING AND INSTALLING/REPLACING ALL VALVES (N62) (CYLINDER HEAD REMOVED)

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD .

Remove valve springs

Remove valve stem seals . See 11 34 560 REPLACING ALL VALVE STEM SEALS (N62) .

Remove valves from cylinder head.

Installation

If necessary, check valve guide for wear.

If necessary, remachine valve seat . See 11 12 527 REMACHINING A VALVE SEAT - CYLINDER HEAD DISASSEMBLED (N62) .

Note. Valve springs for exhaust valves are approx. 4 mm longer.

Scheme 661

1. Valve springs of inlet valves
2. Valve springs of exhaust valves

Scheme 662

Arrangement

Scheme 663

1. Valve
2. Valve stem seal with spring plate, bottom
3. Valve spring
4. Top plate spring
5. Valve tapers

11 34 560 REPLACING ALL VALVE STEM SEALS (N62)

Special tools required

1. 11 1 380
2. 11 6 370
3. 11 6 380

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD .

Press special tool 11 6 370 onto valve stem seal.

Withdraw valve stem seal by turning and simultaneously unscrewing special tool 11 6 370 .

Scheme 664

Installation

Lubricate valve stem with oil and insert valve.

Fit special tool 11 1 380 .

Coat new valve stem seal (1) with oil and install.

Scheme 665

Note. For use on the N62 engine, special tool 11 6 380 must be remachined in accordance with the illustration with a 6.2 mm dia. drill bit to a depth of A = approx. 45 mm. This modification has already been taken into account for reordering.

Scheme 666

Press on valve stem seal with special tool 11 6 380 by hand as far as it will go.

Scheme 667

11 34 715 REPLACING ALL VALVE SPRINGS (N62TU)

Special tools required

1. 11 0 346
2. 11 9 470

(cylinder head removed)

Preliminary tasks are described in DISASSEMBLING AND ASSEMBLING CYLINDER HEAD .

Remove bearing bracket (1) with inlet camshaft and stow in special tool 11 9 470 . The procedure is described in 11 31 032 REMOVING AND INSTALLING/REPLACING LEFT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU) or 11 31 034 REMOVING AND INSTALLING/REPLACING RIGHT INLET CAMSHAFT (N62 FROM 9/03 AND N62TU) .

Remove exhaust camshaft.

Align special tool 11 0 346 in direction of valve shaft.

Scheme 668

Press down valve spring on spring cap, top, and remove valve keys.

Scheme 669

Arrangement

1. Valve
2. Valve stem seal with spring plate, bottom
3. Valve spring
4. Top plate spring
5. Valve tapers

Special tools required

1. 11 9 190
2. 11 9 461
3. 11 9 462

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
2. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .

Remove all spark plugs on cylinder bank 5 to 8.

If necessary, remove fan cowl.

Release screw (1).

Unclip oil line (3) from retainers (2) and remove.

Crank engine at central bolt in direction of rotation to firing TDC position of 1st cylinder.

Note. With 1st cylinder in firing TDC position, cams of inlet and exhaust camshafts at 5th cylinder point upwards at an angle as shown in illustration.

Alignment hole for TDC position is at front on timing case cover.

Crank engine at central bolt and secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Checking locking of inlet adjustment unit in initial position

Engage hexagon head of inlet camshaft and attempt to rotate inlet camshaft carefully against direction of rotation.

If there is no fixed connection between inlet camshaft and inlet adjustment unit, rotate inlet camshaft against direction of rotation as far as it will go.

The inlet adjustment unit is locked in the initial position when the inlet camshaft is non-positively connected to the inlet adjustment unit.

Checking locking of exhaust adjustment unit in initial position

Engage hexagon head of exhaust camshaft and attempt to rotate exhaust camshaft carefully in direction of rotation.

If there is no fixed connection between exhaust camshaft and exhaust adjustment unit, rotate exhaust camshaft in direction of rotation as far as it will go.

The exhaust adjustment unit is locked in the initial position when the exhaust camshaft is non-positively connected to the exhaust adjustment unit.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

If necessary, adjust camshaft timing on left side . See 11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU) .

Remove all special tools.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

Special tools required

1. 11 9 190
2. 11 9 461
3. 11 9 462

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Remove servomotor from right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
2. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
3. Remove all spark plugs on cylinder bank 1 to 4
4. If necessary, remove fan cowl.

Release screw (1).

Unclip oil line (3) from retainers (2) and remove.

Crank engine at central bolt in direction of rotation to firing TDC position of 1st cylinder.

Note. In firing TDC position, cam of exhaust camshaft at 1st cylinder points upwards at an angle.

Cam of inlet camshaft points downwards at an angle

Note. Alignment hole for TDC position is at front on timing case cover.

Crank engine at central bolt and secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Checking locking of inlet adjustment unit in initial position

Engage hexagon head of inlet camshaft and attempt to rotate inlet camshaft carefully against direction of rotation.

If there is no fixed connection between inlet camshaft and inlet adjustment unit, rotate inlet camshaft against direction of rotation as far as it will go.

The inlet adjustment unit is locked in the initial position when the inlet camshaft is non-positively connected to the inlet adjustment unit.

Checking locking of exhaust adjustment unit in initial position

Engage hexagon head of exhaust camshaft and attempt to rotate exhaust camshaft carefully in direction of rotation.

If there is no fixed connection between exhaust camshaft and exhaust adjustment unit, rotate exhaust camshaft in direction of rotation as far as it will go.

The exhaust adjustment unit is locked in the initial position when the exhaust camshaft is non-positively connected to the exhaust adjustment unit.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

If necessary, adjust camshaft timing on right side . See 11 31 574 ADJUSTING CAMSHAFT TIMING ON RIGHT SIDE (N62/N62TU) .

Remove all special tools.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Check camshaft timing on left side . See «11 31 070 CHECKING CAMSHAFT TIMING ON LEFT SIDE (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62) .
2. Remove left timing case cover . See «11 14 080 REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-080-removing-and-installing) .

Note. When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Get special tool kit 11 9 460 ready for securing camshafts.

Note. Special tool 11 9 461 for securing inlet camshaft. Special tool 11 9 462 for securing exhaust camshaft. Special tool 11 9 463 (holder with screw).

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Note. When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Note. When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Remove special tool 11 9 190 .

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Assemble engine.

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Are described in the operation " «CHECKING CAMSHAFT TIMING ON RIGHT SIDE»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62) " .
2. Remove right timing case cover . See «11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-085-removing-and-installing) .

Note. When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Get special tool kit 11 9 460 ready for securing camshafts.

Note. Special tool 11 9 461 for securing inlet camshaft. Special tool 11 9 462 for securing exhaust camshaft. Special tool 11 9 463 (holder with screw).

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Note. When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1), remove special tools 11 9 463 and 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Note. When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1), remove special tools 11 9 463 and 11 9 462 from exhaust camshaft.

Remove special tool 11 9 190 .

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Assemble engine.

11 36 047 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON LEFT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 5 to 8)

Necessary preliminary tasks

1. Read fault memory and make a documentary record
2. Remove servomotor for left eccentric shaft . See «11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-022-removing-and-installingreplacing) .
3. Remove left cylinder head cover . See «11 12 005 REMOVING AND INSTALLING/SEALING LEFT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-005-removing-and-installingsealing) .
4. Remove all spark plugs on cylinder bank 5 to 8
5. If necessary, remove fan cowl
6. Remove left timing case cover . See «11 14 080 REMOVING AND INSTALLING TOP LEFT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-080-removing-and-installing) .

Removal

Removal of inlet and exhaust adjustment units is described separately from installation.

Release screw (1).

Unclip oil line (3) from retainers (2) and remove.

Crank engine at central bolt in direction of rotation to firing TDC position of 1st cylinder.

Note. With 1st cylinder in firing TDC position, cams of inlet and exhaust camshafts at 5th cylinder point upwards at an angle as shown in graphic.

Note. Alignment hole for TDC position is at front on timing case cover.

Crank engine at central bolt and secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Checking locking of inlet adjustment unit in initial position

Engage hexagon head of inlet camshaft and attempt to rotate inlet camshaft carefully against direction of rotation.

If there is no fixed connection between inlet camshaft and inlet adjustment unit, rotate inlet camshaft against direction of rotation as far as it will go.

The inlet adjustment unit is locked in the initial position when the inlet camshaft is non-positively connected to the inlet adjustment unit.

Checking locking of exhaust adjustment unit in initial position

Engage hexagon head of exhaust camshaft and attempt to rotate exhaust camshaft carefully in direction of rotation.

If there is no fixed connection between exhaust camshaft and exhaust adjustment unit, rotate exhaust camshaft in direction of rotation as far as it will go.

The exhaust adjustment unit is locked in the initial position when the exhaust camshaft is non-positively connected to the exhaust adjustment unit.

Remove special tool 11 9 190 .

Crank engine at central bolt against direction of rotation to 45° before TDC position.

Scheme 670

Note. When slackening screws, grip camshafts at hexagon head.

Slacken screws of exhaust and inlet adjustment unit.

Remove screw on exhaust adjustment unit.

Scheme 671

Vigorously press back tensioner rail (3) several times to remove oil in chain tensioner.

Feed out exhaust adjustment unit (2).

Scheme 672

Remove screw on inlet adjustment unit.

Scheme 673

Feed out inlet adjustment unit (1).

Secure timing chain to prevent it from sliding down.

Scheme 674

Installation

Installation of inlet and exhaust adjustment units is described separately from removal.

Inlet and exhaust adjustment units are different.

Mixing up the inlet and exhaust adjustment units will cause damage to the engine.

Scheme 675

1. Inlet adjustment unit (1) is marked with EIN and IN.
2. Exhaust adjustment unit (2) is marked with AUS and EX.

Note. Position of inlet adjustment unit (1) to timing chain can be freely selected.

Pull timing chain up.

Feed inlet adjustment unit (1) into timing chain and fit onto inlet camshaft.

Replace screw.

Install screw on inlet adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Note. Position of exhaust adjustment unit (2) to timing chain can be freely selected.

Pull timing chain up.

Feed exhaust adjustment unit (2) into timing chain.

Press tensioner rail (3) back and fit exhaust adjustment unit (2) onto exhaust camshaft.

Note. If tensioner rail (3) cannot be pressed back far enough to enable fitting of exhaust adjustment unit (2)

Remove chain tensioner.

Place chain tensioner on a level surface and compress slowly and carefully.

Repeat this procedure twice.

Installation

Replace sealing ring.

Install chain tensioner and tighten down.

Tightening torque 11 31 8AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Fit exhaust adjustment unit (2).

Replace screw.

Install screw on exhaust adjustment unit.

Tighten screw without play and then slacken off again by half a turn.

Get special tool kit 11 9 460 ready for securing camshafts.

Note. Special tool 11 9 461 for securing inlet camshaft. Special tool 11 9 462 for securing exhaust camshaft. Special tool 11 9 463 (holder with screw).

Place special tool 11 9 461 on inlet camshaft and align inlet camshaft so that special tool 11 9 461 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Crank engine at central bolt from 45° before TDC position in direction of rotation to firing TDC position.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Note. When tightening down screw (1), grip camshaft at hexagon head.

Tighten down screw (1) of inlet adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1) and remove special tools 11 9 463 / 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and align exhaust camshaft so that special tool 11 9 462 rests without a gap on cylinder head.

Fit special tool 11 9 463 , secure screw (1) in thread for oil line and tighten down by hand.

Note. When tightening down screw (2), grip camshaft at hexagon head.

Tighten down screw (2) of exhaust adjustment unit.

Tightening torque 11 36 16AZ . See ENGINE - TIGHTENING TORQUES (N62TU V8) .

Release screw (1) and remove special tools 11 9 463 / 11 9 462 from exhaust camshaft.

Remove special tool 11 9 190 .

Crank engine at central bolt twice in direction of rotation until engine returns to firing TDC position of 1st cylinder.

Secure vibration damper with special tool 11 9 190 in firing TDC position of 1st cylinder.

Place special tool 11 9 461 on inlet camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 461 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove special tool 11 9 461 from inlet camshaft.

Place special tool 11 9 462 on exhaust camshaft and check timing.

Note. The timing is correctly adjusted when special tool 11 9 462 rests flat on the cylinder head or protrudes by up to 0.5 mm to the exhaust side.

Remove all special tools.

Clip oil line (3) into retainers (2).

Insert screw (1) and tighten down.

Assemble engine.

11 36 048 REMOVING AND INSTALLING/REPLACING INLET AND EXHAUST ADJUSTMENT UNITS ON RIGHT SIDE (N62/N62TU)

Special tools required

1. 11 9 190
2. 11 9 460
3. 11 9 461
4. 11 9 462
5. 11 9 463

(cylinder bank 1 to 4)

Necessary preliminary tasks

1. Read fault memory and make a documentary record
2. Remove servomotor for right eccentric shaft . See «11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-37-024-removing-and-installingreplacing) .
3. Remove right cylinder head cover . See «11 12 006 REMOVING AND INSTALLING/SEALING RIGHT CYLINDER HEAD COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-12-006-removing-and-installingsealing) .
4. Remove all spark plugs on cylinder bank 1 to 4
5. If necessary, remove fan cowl
6. Remove right timing case cover . See «11 14 085 REMOVING AND INSTALLING TOP RIGHT TIMING CASE COVER (N62/N62TU)»(/bmw/x5/e70-2006-2010/remont/mechanical/#engine-repair-n62__11-14-085-removing-and-installing) .

Removal

Removal of inlet and exhaust adjustment units is described separately from installation.