Engine - Repair: Other BMW 7 series E65/E66

00 00 249 BMW engine oil service (M60/M62/M73)

Change engine oil and oil filter.

Note. Do not damage main flow oil filter cover. Only open and tighten with socket wrench.

Unfasten main flow oil filter cover - engine oil now flows back into oil pan.

Scheme 545

11 00 045 Checking absolute compression of all cylinders

With BMW Diagnosis Information System (DIS) .

Scheme 546

1. Connect DIS tester
2. BMW measuring technology
3. Preset measurements
4. Absolute compression The further procedure is described in Help Help on preset measurements Adaptation of "Absolute compression"
5. Clear fault memory

11 00 050 Removing and installing engine (M62)

Follow instructions for disconnecting and connecting battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Disconnect negative battery lead.

Lift engine hood into assembly position.

Disconnect damper on hood, open hood fully and secure with a screw on left and right sides.

Scheme 547

Version 1

(Acoustic cover screwed down)

Pry out sealing cap. Unscrew nuts.

Remove acoustic cover.

Scheme 548

Version 2

(Acoustic cover with press-stud fastener)

Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly; remove acoustic cover once all four press-stud fasteners have been unlocked.

Scheme 549

11 12 004 Removing and installing/sealing both cylinder head covers (M62)

Note instructions on connecting and decoupling battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY

Disconnect negative battery lead.

(acoustic cover screwed down)

Pry out sealing cap. Unscrew nuts.

Remove acoustic cover.

Scheme 550

(acoustic cover with press-stud fastener)

Open press-studs (1 ... 4) one at a time, at the same time lifting the acoustic cover slightly. Once all four press-studs have been opened, remove the acoustic cover.

Scheme 551

11 12 005 Removing and installing/sealing left cylinder head cover (M62)

This operation is described in removing and installing/sealing both cylinder head covers, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62)

11 12 006 Removing and installing/sealing right cylinder head cover (M62)

This operation is described in removing and installing/sealing both cylinder head covers, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62)

11 12 105 Removing and installing left cylinder head (M62 VANOS from 9/98)

(Cylinder bank 5-8)

Remove left exhaust manifold, refer to 11 62 060 REMOVING AND INSTALLING/REPLACING EXHAUST MANIFOLD, LEFT (M62 VANOS FROM 9/98) .

Unfasten drain plug for coolant on left engine block.

Drain and dispose of coolant.

11 12 105 Removing and installing left cylinder head (M62 up to 9/98)

(Cylinder bank 5-8)

Remove left exhaust manifold, refer to 11 62 142 REMOVING AND INSTALLING OR REPLACING BOTH EXHAUST MANIFOLDS ON LEFT (M62 TO 9/98) .

Unfasten drain plug for coolant on left engine block.

Drain and dispose of coolant.

11 12 106 Removing and installing right cylinder head (M62 VANOS from 9/98)

(cylinder bank 1 to 4)

Remove right exhaust manifold, refer to 11 62 065 REMOVING AND INSTALLING/REPLACING EXHAUST MANIFOLD, RIGHT (M62 VANOS FROM 9/98) .

Unfasten drain plug for coolant on right engine block.

Drain and dispose of coolant.

E38/E39

Pull special tool 11 2 300 back until flywheel is no longer secured in position.

Scheme 552

Lift timing chain and hold under tension.

Crank engine from 45° before TDC position in direction of rotation up to TDC position.

Hold crankshaft in TDC position with special tool 11 2 300.

Scheme 553

11 12 106 Removing and installing right cylinder head (M62 up to 9/98)

(Cylinder bank 1-4)

Remove right exhaust manifold, refer to 11 62 143 REMOVING AND INSTALLING OR REPLACING BOTH EXHAUST MANIFOLDS ON RIGHT (M62 TO 9/98) .

Unfasten drain plug for coolant on right engine block.

Drain and dispose of coolant.

11 12 107 Removing and installing both cylinder heads (M62)

Remove both cylinder heads.

These tasks are described in the work step Removing and installing right/left cylinder head, refer to 11 12 105 REMOVING AND INSTALLING LEFT CYLINDER HEAD (M62 VANOS FROM 9/98) .

11 12 110 Replacing left cylinder head gasket (M62/S62/N62)

(cylinder bank 5 to 8)

This task is described in the section. Removing and installing left cylinder head. Refer to 11 12 105 REMOVING AND INSTALLING LEFT CYLINDER HEAD (M62 UP TO 9/98)

11 12 111 Replacing right cylinder head gasket (M62/S62/N62)

(cylinder bank 1 to 4)

This task is described in the section Removing and installing right cylinder head. Refer to 11 12 106 REMOVING AND INSTALLING RIGHT CYLINDER HEAD (M62 UP TO 9/98) .

11 12 527 Remachining a valve seat (M62, S62)

(cylinder head dismantled)

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

Scheme 554

After machining the valve-seat face on OD and bore diameter, rework to specified diameter with correction milling tool until valve seat width (5) is obtained.

Scheme 555

1. Valve-seat angle
2. Correction angle, external diameter
3. Correction angle, internal diameter
4. Outside "OSLASH" of the seat face
5. Valve seat width Specified values (1 to 5), refer to «1112 CYLINDER HEAD WITH VALVE SEAT COVER M62 B 46»(ref-201146-S01529305082005102500000) Technical Data.

11 12 595 Checking a valve guide for wear (M62, S62)

(valve removed)

To measure tilt clearance, insert new valve so that valve stem end is flush with valve guide.

Mount dial gage and measure tilt clearance.

Note. Max. permissible tilt clearance

Refer to 1112 CYLINDER HEAD WITH VALVE SEAT COVER M62 B 46 Technical Data.

Scheme 556

Note. If tilt clearance is excessive, valve guide is reamed out and a repair valve with a larger shaft diameter is installed.

If necessary, ream out valve guide, refer to 11 12 600 REAMING A VALVE GUIDE (M62, S62) .

Scheme 557

11 12 600 Reaming a valve guide (M62, S62)

(valve removed)

Note. In event of excessive clearance between valve stem and valve guide

1. Ream out valve guide
2. Install repair valve with larger stem diameter

Assemble the reaming tool and guide taper (1) from the special tool kit 00 4 210 depending on the shaft diameter. Press guide taper (1) onto valve seat. Starting from combustion chamber side, ream valve guide dry. Rotate reaming tool once in downwards direction.

Note. After reaming out, remachine valve seat

Refer to 11 12 527 REMACHINING A VALVE SEAT (M62, S62) .

Scheme 558

11 12 719 Milling down cylinder head gasketing face (M62)

(Cylinder head dismantled)

Check planeness of cylinder head gasketing face with straightedge (standard).

Deviation from planeness max. 0.05 mm.

Note. Machine limit, refer to 11 12 CYLINDER HEAD WITH COVER M62 B 46 Technical Data

Scheme 559

Note. The repair cylinder head gasket is designated at the back with a bore beside the 4th or 8th cylinder.

Scheme 560

11 12 729 Checking cylinder head for water leaks (M62)

(Cylinder head dismantled)

Seal coolant apertures with special tool kit 11 1 470.

Note. Special tool 11 1 473 for cylinder bank 1-4

Special tool 11 1 474 for cylinder bank 5-8

Scheme 561

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 562

11 13 010 Removing and installing/replacing upper section of oil pan (M62)

Note. For removal of oil pan, front axle support must be lowered.

There is no need to perform a front axle alignment check.

E38 only

Note instructions on connecting and decoupling battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY

Disconnect negative battery lead.

Lift engine hood into assembly position.

Disconnect damper on hood, open hood fully and secure with a screw on left and right sides.

Scheme 563

(acoustic cover screwed down)

Pry out sealing cap. Unscrew nuts.

Remove acoustic cover.

Scheme 564

(acoustic cover with press-stud fastener)

Open press-studs (1 ... 4) one at a time, at the same time lifting the acoustic cover slightly. Once all four press-studs have been opened, remove the acoustic cover.

Scheme 565

E38

Unfasten protective tube on positive battery lead from oil pan and unfasten from right engine support.

Unfasten positive battery lead from starter motor and unfasten from left retaining bracket.

Unfasten guide tube for dipstick on oil pan.

11 13 020 Removing and installing / replacing lower oil pan section (M60/M62)

Unscrew and remove splash guard.

Open cover on main flow oil filter, engine oil returns to oil sump. Open oil drain plug. Drain engine oil.

Unfasten plug connection on oil level switch.

Scheme 566

Unfasten lower oil pan section.

Scheme 567

11 13 510 Removing and installing/replacing upper oil sump section (M60/M62)

(engine removed)

Secure engine to special tool 00 1 450.

Remove lower oil sump section.

Remove guide tube for oil dipstick.

Installation

Replace sealing ring.

Insert sealing ring and washer in oil sump bore.

Scheme 568

Unfasten return line from oil pan.

Installation

Replace sealing ring.

Scheme 569

Release oil sump screws on inside of oil sump.

Scheme 570

Release oil sump screws pointing to end cover and then remaining oil sump screws.

Scheme 571

Installation

Clean sealing faces and free of seal debris. Apply Hylomar SQ 32M liquid sealing compound (refer to BMW Parts Service) to edges of partition area.

Scheme 572

Replace gasket. Install upper oil sump section and insert all oil sump screws.

Installation

In order to exclude torsion stress when installing the transmission later, align the oil pan flush with the engine block on the transmission side.

Tighten all oil sump screws.

Scheme 573

11 14 080 Removing and installing timing case cover, top left (M62 VANOS from 9/98)

Remove left cylinder head cover. These tasks are described in the work step Removing and installing/sealing both cylinder head covers, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove fan clutch with impeller, refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Remove solenoid valve of camshaft adjustment unit, left, refer to 11 36 585 REMOVING AND INSTALLING/REPLACING SOLENOID VALVE OF CAMSHAFT ADJUSTMENT UNIT, LEFT (M62 VANOS FROM 9/98) .

Disconnect plug connection to check valve.

Detach secondary-air line on timing case cover, top left and right.

Detach secondary-air line on bracket and remove.

Scheme 574

11 14 080 Removing and installing timing case cover, top left (M62 up to 9/98)

Remove left cylinder head cover. These tasks are described in the work step Removing and installing/sealing both cylinder head covers, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove fan clutch with impeller, refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Unfasten timing case cover.

Scheme 575

Remove rubber sealing strip.

11 14 085 Removing and installing timing case cover, top right (M62 VANOS from 9/98)

Disconnect plug connection to check valve.

Detach secondary-air line on timing case cover, top left and right.

Detach secondary-air line on bracket and remove.

Scheme 576

11 14 085 Removing and installing timing case cover, top right (M62 up to 9/98)

Remove right cylinder head cover. These tasks are described in the work step Removing and installing/sealing both cylinder head covers, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove piston for chain tensioner, refer to 11 31 090 INSTALLING AND REMOVING/REPLACING PISTON FOR CHAIN TENSIONER (M62) .

Remove camshaft sensor.

Scheme 577

Unfasten top screw from dipstick tube.

Scheme 578

Unfasten timing case cover.

Scheme 579

Remove rubber sealing strip.

11 14 110 Removing and installing timing case cover, bottom (M62 VANOS from 9/98)

Instructions for disconnecting and connecting battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Disconnect negative battery lead.

Unfasten drain plug for coolant on right engine block.

Drain and dispose of coolant.

11 14 110 Removing and installing timing case cover, bottom (M62 up to 9/98)

Remove timing case covers, top left and right, refer to 11 14 080 REMOVING AND INSTALLING TIMING CASE COVER, TOP LEFT (M62 VANOS FROM 9/98) and 11 14 085 REMOVING AND INSTALLING TIMING CASE COVER, TOP RIGHT (M62 VANOS FROM 9/98) .

Remove hub for vibration damper, refer to 11 23 031 REMOVING AND INSTALLING/REPLACING HUB FOR VIBRATION DAMPER (M62) .

Remove water pump with thermostat housing, refer to 11 51 000 REMOVING AND INSTALLING/REPLACING WATER PUMP (M62 / S62) .

Remove upper oil sump section, refer to 11 13 010 REMOVING AND INSTALLING/REPLACING UPPER SECTION OF OIL PAN (M62) .

Remove alternator, refer to 12 31 020 REMOVING AND INSTALLING/REPLACING ALTERNATOR (M60, M62) .

Press bow cover against the timing chain. Secure bow cover with a plastic strap (1).

Scheme 580

Unfasten lower timing case cover.

Scheme 581

11 14 141 Replacing radial seal below timing case cover (M62)

Removing hub for vibration damper, refer to 11 23 031 REMOVING AND INSTALLING/REPLACING HUB FOR VIBRATION DAMPER (M62)

Fit special tool 11 2 383 to crankshaft.

Scheme 582

Screw on special tool 11 2 380 until it is securely connected to the radial seal.

Remove radial sealing ring by tightening in the screw.

Scheme 583

Coat sealing lips of new radial sealing ring with oil.

Using special tool 11 1 220 and central screw, install radial seal until flush with timing case cover.

Scheme 584

11 14 151 Replacing crankshaft radial seal (M62/S62)

(transmission side)

1. Remove gearbox
2. Drain off engine oil
3. Remove flywheel

Unfasten screws.

Scheme 585

Unfasten screw on rear end cover.

Scheme 586

Carefully unfasten oil sump gasket from end cover and remove end cover.

Note. The end cover is in the set with the radial sealing ring.

If necessary, lift out the radial seal and drive in new sealing ring using special tool 11 1 230 in conjunction with special tool 00 5 500.

Scheme 587

Check for correct fit of hollow bushes.

Replace seal.

Coat contact points on joint along oil sump with Drei Bond 1209 (refer to BMW Parts Service).

Scheme 588

Fit special tool 11 2 390 on crankshaft.

Scheme 589

Coat sealing lip of radial sealing ring with oil.

Slide on end cover.

Carefully remove special tool 11 2 390.

Replace the sealing washers under the screws (1).

Scheme 590

Insert all screws and tighten down end cover.

11 21 500 Replacing crankshaft (M62)

(engine removed)

Unscrew oil sump.

Remove oil pump.

Remove timing case cover at bottom, refer to 11 14 110 REMOVING AND INSTALLING TIMING CASE COVER, BOTTOM (M62 VANOS FROM 9/98) .

Remove piston, refer to 11 25 530 REMOVING AND INSTALLING/REPLACING ALL PISTONS (M62) .

Remove flywheel, refer to 11 22 500 REMOVING AND INSTALLING/REPLACING FLYWHEEL (M62/S62) and 11 22 510 Removing and installing/replacing flywheel (M62) .

Remove rear end cover. This task is described in the section

Replacing crankshaft radial seal, refer to 11 14 151 REPLACING CRANKSHAFT RADIAL SEAL (M62/S62) .

Unfasten taper screw mount on main bearing. (Collar screws and spacer screws.)

Scheme 591

Remove screws securing main bearing caps.

Scheme 592

Remove main bearing caps 1 to 5.

Scheme 593

Lever out crankshaft.

Scheme 594

If necessary, remove sprocket wheel from crankshaft.

Fit special tool 11 2 383 to crankshaft.

Remove sprocket wheel with special tool 11 2 001 in conjunction with special tool 11 2 005 and special tool 11 2 004.

Scheme 595

11 21 531 Replacing main crankshaft bearing shell (M62)

(engine dismantled)

Clean components before installation.

Preliminary tasks are described in Replacing crankshaft, refer to 11 21 500 REPLACING CRANKSHAFT (M62)

Scheme 596

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

Scheme 597

Note. When crankshaft or main bearing shells are being replaced, the classification for the arrangement of the main bearing shells in the crankcase is no longer of significance. Install yellow main bearing shells in crankcase.

Scheme 598

Note. The crankshaft is marked with yellow, green or white paint according to the tolerance of the main journal.

Coat bearing shells with oil.

Install crankshaft.

Scheme 599

Note. Place main bearing shells with same color code as that of crankshaft in main bearing caps.

Scheme 600

Release hex head in main bearing cap.

Scheme 601

Note. Install stop disk for collar bearing (in engine block). Install stop disk for collar bearing (in main bearing cap).

Insert stop disks for collar bearing on both sides between crankshaft and engine block at main bearing 5.

Scheme 602

Align thrust washers with contact face of main bearing caps.

Scheme 603

Note. Main bearing caps (1 to 3) are marked with punch numbers.

The main bearing caps 4 and 5 are not marked.

Note. Main bearing cap no. 5 can be identified by the recesses for the stop disks of the thrust bearing.

Scheme 604

Insert stop disks on both sides into grooves of main bearing cap no. 5.

Scheme 605

Checking main bearing clearance

Do not twist crankshaft.

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

Scheme 606

Position main bearing caps (1 to 5) so that retaining grooves of main bearing shells are on one side.

Align main bearing cap flush with side of bearing seat.

Scheme 607

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

No oil is permitted in the blind bores (danger of cracking).

1. Tighten all screws on main bearing cover with jointing torque.
2. Tighten down all bolts on main bearing cap with special tool 00 9 120 with torsion angle.

Tightening Torque, refer to 11 11 2AZ ENGINE BLOCK .

Remove main bearing cover and read off main bearing clearance from thickness of crushed plastic thread with the help of the measuring scale.

Main bearing clearance, refer to CRANKSHAFT AND BEARINGS .

Scheme 608

Remove plastic thread.

Lubricate crankshaft and main bearing shells.

Position main bearing caps (1 to 5) so that retaining grooves of main bearing shells are on one side.

Align main bearing cap flush with side of bearing seat.

Scheme 609

Note. The main bearing cap screws must always be replaced by new ones.

Do not wash off bolt coating.

No oil is permitted in the blind bores (risk of cracking)!

Tightening specifications for main bearing

Scheme 610

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).
4. Tighten screws of main bearing cover 5 with jointing torque.
5. Tighten down all bolts on main bearing cap with special tool 00 9 120 with torsion angle. Tightening Torque, refer to 11 11 2AZ «ENGINE BLOCK»(ref-201157-S42527143942005102500000) .

Check axial play.

Axial play, refer to 11 21 CRANKSHAFT AND BEARINGS M62 B 35 .

Check guide bearing shell, crankshaft and crankcase if necessary.

Scheme 611

Tighten threaded protective bushes.

Tightening Torque, refer to 11 11 3AZ ENGINE BLOCK .

Scheme 612

Replace collar screws.

Tighten taper screw mount on main bearing (collar screws and spacer pins).

Tightening Torque, refer to 11 11 3AZ ENGINE BLOCK .

Scheme 613

11 21 571 Replacing grooved ball bearing in crankshaft (M62/S62)

(Clutch removed)

Remove grooved ball bearing with special tool 11 2 340 in conjunction with special tool 11 2 016.

Scheme 614

Install new thrust bearing and drive firmly home with special tool 11 2 350 in conjunction with special tool 00 5 500.

Scheme 615

11 22 500 Removing and installing/replacing flywheel (M62/S62)

(clutch removed)

Block flywheel with special tool 11 2 070.

Scheme 616

Release and tighten the flywheel (ZMS) only with special tool 11 4 180.

11 22 510 Removing and installing/replacing flywheel (M62)

(Transmission removed)

Block the flywheel using special tool 11 2 070.

Scheme 617

Unfasten flywheel screws.

Remove drive plate (1).

Remove flywheel (2).

Scheme 618

Clean threads on flywheel screws in crankshaft.

Scheme 619

11 24 571 Replacing all conrod bearings (M62)

(piston removed)

Install new conrod bearing shells.

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

Install pistons, refer to 11 25 530 REMOVING AND INSTALLING/REPLACING ALL PISTONS (M62) .

Scheme 620

Check connecting-rod bearing clearance

Piston in BDC position.

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

Place bearing caps in position, making sure that matching numbers are paired.

Scheme 621

Use the old connecting-rod bolts to check connecting-rod clearance.

Tighten down conrod screws with special tool 00 9 120 or special tool 11 2 110, respectively.

Tightening Torque, refer to 11 24 CONNECTING RODS AND BEARINGS .

Scheme 622

Remove bearing cover and read off bearing clearance across width of pinched plastic thread with the help of the measuring scale.

Scheme 623

Conrod bearing clearance, refer to CONNECTING RODS AND BEARINGS Technical Data.

1. Remove plastic thread.
2. Lubricate crankshaft and bearing shells.
3. Insert new conrod bolts and tighten down.

Tightening Torque, refer to 11 24 CONNECTING RODS AND BEARINGS .

M62 B46 only

Lightly coat pistons and piston rings with oil.

Align contact points of piston rings (offset at approx. 120deg;, but not over piston pin lug).

Compress piston rings with special tool 11 9 500.

Keep piston rings compressed with special tool 11 9 500.

Install piston so that arrow points to camshaft drive.

Scheme 624

M62 B35/B44 only

Lightly coat pistons and piston rings with oil.

Align contact points of piston rings (offset at approx. 120°;, but not over piston pin lug).

Press together piston rings using special tool 11 2 260.

Scheme 625

Install piston so that arrow points to camshaft drive.

Entire circumference of tightening strap must rest firmly on engine block.

Scheme 626

Attach crankpin to connecting rod.

Scheme 627

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

Fit bearing caps so that pair numbers match up.

Install new conrod bolts.

Scheme 628

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

Tightening torque CONNECTING RODS AND BEARINGS .

Scheme 629

Install spray nozzle and tighten down screw.

Scheme 630

11 25 671 Replacing piston rings on all pistons (M62)

(Piston removed)

Remove piston rings 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 631

11 28 010 Replacing alternator drive belt (M62)

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

Remove fan clutch with impeller, refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Layout of drive belt.

Scheme 632

Slacken screws (1) and relieve tension on belt drive.

Note. Release screws (1 and 2) to remove complete belt tensioner.

Remove drive belt.

11 28 050 Replacing drive belt for a/c compressor (M60/M62/M73)

Note. If the drive belt is to be reused, mark direction of travel and reinstall drive belt in same direction of rotation.

If necessary, remove splash guard.

Remove alternator drive belt, refer to 11 28 010 REPLACING ALTERNATOR DRIVE BELT (M62)

Loosen nuts (2 and 3) and remove compressor drive belt.

Scheme 633

Secure crankshaft with special tool 11 2 300 in TDC firing position of first cylinder.

Scheme 634

Remove special tool 11 2 300.

Scheme 635

11 31 010 Adjusting camshaft timing (M62 up to 9/98)

Unscrew and remove splash guard.

Remove both cylinder heads, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove all spark plugs, refer to 12 12 011 REPLACING ALL SPARK PLUGS (M60, M62) .

Remove fan clutch with impeller, refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Remove all oil lines to left and right cylinder head.

Scheme 636

Crank engine at central bolt in direction of rotation until the first cylinder is in TDC position.

Scheme 637

Unfasten the accessible three screws on exhaust and inlet camshafts on cylinder bank 1 to 4 approx. 1/2 a turn.

Scheme 638

Unfasten the accessible three screws on exhaust and inlet camshafts on cylinder bank 5 to 8 approx. 1/2 a turn.

Scheme 639

Turn over engine once.

Remove special tool 11 2 300 before switching on the engine.

Scheme 640

Fit special tool 11 2 445/441 to camshafts on cylinder bank 1 to 4.

Scheme 641

Note. In TDC position of first cylinder, marker bores of camshafts point upwards.

Scheme 642

Fit special tool 11 2 446/442 to camshafts on cylinder bank 5-8.

Scheme 643

Note. In TDC position of first cylinder, marker bores of camshafts point upwards.

Scheme 644

Note. When unfastening screw connection on camshaft, brace camshaft on hex head.

Scheme 645

Unfasten remaining three screws on exhaust and inlet camshafts on cylinder bank 1 to 4 approx. 1/2 a turn.

Scheme 646

Unfasten remaining three screws on exhaust and inlet camshafts on cylinder bank 5 to 8 approx. 1/2 a turn.

Scheme 647

Align all camshafts with open-end wrench in such a way that special tools 11 2 445/441/446/442 locate firmly against cylinder heads.

Scheme 648

Fit special tool 11 2 443 to special tool 11 2 445/441 and secure with special tool 11 2 444 using the spark plug thread.

Scheme 649

Fit special tool 11 2 443 to special tool 11 2 446/442 and secure with special tool 11 2 444 using the spark plug thread.

Scheme 650

Remove piston for chain tensioner, refer to 11 31 090 INSTALLING AND REMOVING/REPLACING PISTON FOR CHAIN TENSIONER (M62)

Install special tool 11 3 390 in right timing case cover.

Scheme 651

Tighten bow cover by turning the adjusting screw on the special tool 11 3 390 with special tool 00 9 250 to 0.7 N.m.

Note. If installation tolerance is unfavorable, attach special tool 00 9 250 from underside.

Scheme 652

Tighten sprockets in the following order

Three accessible screws on

1. Exhaust camshaft, left (5 to 8)
2. Exhaust camshaft, right (1 to 4)
3. Inlet camshaft, left (5 to 8)
4. Inlet camshaft, right (1 to 4)

Tightening Torque, refer to 11 31 3AZ CAMSHAFT .

Remove special tool 11 2 300.

Remove special tools from camshafts.

Turn over engine once.

Scheme 653

Tighten down remaining three screws on exhaust and inlet camshafts on cylinder bank 1 to 4 firmly.

Tightening Torque, refer to 11 31 3AZ CAMSHAFT .

Scheme 654

Tighten down remaining three screws on exhaust and inlet camshafts on cylinder bank 5 to 8 firmly.

Tightening Torque, refer to 11 31 3AZ CAMSHAFT .

Scheme 655

Install all oil lines to left and right cylinder heads.

Scheme 656

Unfasten and remove special tool 11 3 390.

Assemble engine.

Scheme 657

11 31 011 Replacing left camshaft (M62 up to 9/98)

(Intake or exhaust side as applicable)

Cylinder bank 5 to 8

Unscrew and remove splash guard.

Remove both cylinder heads, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove all spark plugs, refer to 12 12 011 REPLACING ALL SPARK PLUGS (M60, M62) .

Pull special tool 11 2 300 back until flywheel is no longer secured in position.

Scheme 658

Crank engine from 45° before TDC position in direction of rotation up to TDC position.

Hold crankshaft in TDC position with special tool 11 2 300.

Scheme 659

Pull special tool 11 2 300 back until flywheel is no longer secured in position.

Scheme 660

Crank engine from 45° before TDC position in direction of rotation up to TDC position.

Hold crankshaft in TDC position with special tool 11 2 300.

Scheme 661

11 31 015 Replacing right camshaft (M62 up to 9/98)

(Intake or exhaust side as applicable)

Cylinder bank 1-4

Unscrew and remove splash guard.

Remove both cylinder heads, refer to 11 12 004 REMOVING AND INSTALLING/SEALING BOTH CYLINDER HEAD COVERS (M62) .

Remove all spark plugs, refer to 12 12 011 REPLACING ALL SPARK PLUGS (M60, M62) .

Remove fan clutch with impeller, refer to 11 52 020 REMOVING AND INSTALLING OR REPLACING FAN COUPLING (M62) .

Secure crankshaft in TDC position with special tool 11 2 300.

Scheme 662

E31/E38/E39

Remove special tool 11 2 300.

Scheme 663

Secure crankshaft with special tool 11 2 300 in TDC firing position.

Scheme 664

Remove special tool 11 2 300.

Scheme 665

11 31 090 Installing and removing/replacing piston for chain tensioner (M62)

Remove upper section of suction filter housing style with mass air flow sensor.

Remove lower section of suction filter housing.

Scheme 666

Unfasten screw connection.

11 34 552 Removing and installing/replacing all valves (M62)

(cylinder head removed)

Preliminary work is described in section on dismantling and assembling the cylinder head, refer to 11 12 503 DISMANTLING AND REASSEMBLING CYLINDER HEAD (M62)

Replacing valve stem seals, refer to 11 34 560 REPLACING ALL VALVE STEM SEALS (M62, S62)

Remove valves from cylinder head.

If necessary, check valve guide for wear, refer to 11 12 595 CHECKING A VALVE GUIDE FOR WEAR (M62, S62)

If necessary, ream the valve guide, refer to 11 12 600 REAMING A VALVE GUIDE (M62, S62)

If necessary, rework valve seat, refer to 11 12 527 REMACHINING A VALVE SEAT (M62, S62)

Installation sequence

Scheme 667

1. Valve
2. Valve-stem seal
3. Lower plate spring
4. Valve spring
5. Upper plate spring
6. Valve tapers

11 34 560 Replacing all valve stem seals (M62, S62)

(cylinder head removed)

Preliminary tasks are described in disassembly and assembly of cylinder head, refer to 11 12 503 DISMANTLING AND REASSEMBLING CYLINDER HEAD (M62) .

Scheme 668

Remove valve stem seal with special tool 11 1 480.

Scheme 669

Lubricate valve stem with oil and insert valve. Fit special tool 11 1 960. Coat new valve stem seal (1) with oil and install.

Scheme 670

Press-fit valve stem seal firmly home by hand using special tool 11 1 200.

Remove special tool 11 1 960.

Scheme 671

11 34 715 Replacing all valve springs (M62)

(cylinder head removed)

Preliminary tasks are described in disassembly and assembly of cylinder head, refer to 11 12 503 DISMANTLING AND REASSEMBLING CYLINDER HEAD (M62) .

Remove bucket tappet with special tool 11 3 250.

Scheme 672

Secure crankshaft with special tool 11 2 300 in TDC firing position of first cylinder.

Scheme 673

Remove special tool 11 2 300.

Scheme 674

Secure crankshaft in TDC position with special tool 11 2 300.

Scheme 675

Remove special tool 11 2 300.

Scheme 676

Secure crankshaft in TDC position with special tool 11 2 300.

Scheme 677

Remove special tool 11 2 300.

Scheme 678

Checking engine oil pressure with DIS Tester

Attach special tool 13 6 054 with sealing ring (1) and special tool 13 6 051 and connect to DIS Tester.

Scheme 679

Checking engine oil pressure with pressure gauge

Install special tool 13 3 063 and special tool 13 3 061 (pressure gauge). see scheme 635

Start engine and check engine oil pressure.

Specified value.

11 41 000 Removing and installing/replacing oil pump (M62)

Remove lower oil sump section, refer to 11 13 020 REMOVING AND INSTALLING / REPLACING LOWER OIL PAN SECTION (M60/M62) .

11 42 020 Completely removing and installing, sealing/replacing main flow oil filter (M62 / S62)

Open or tighten down main flow oil filter cap with a wrench socket.

When the main flow oil filter cap is opened, engine oil flows from the oil filter housing back into the oil sump.

Open main flow oil filter cap and take off.

11 51 000 Removing and installing/replacing water pump (M62 / S62)

Drain off coolant and dispose of correctly.

11 52 020 Removing and installing or replacing fan coupling (M62)

Using special tool 11 5 050 brace against pulley and unfasten cap nut from water pump using special tool 11 5 040.

Remove fan wheel with fan coupling from water pump.

Scheme 680

11 53 000 Removing and installing / replacing coolant thermostat (M62)

Remove upper section of suction filter housing with mass air flow sensor.

Unscrew and remove splash guard.

Drain off coolant and dispose of correctly.

11 53 325 Removing and installing/replacing coolant manifold (M62)

Disconnect intake air manifold, refer to 11 61 050 REMOVING AND INSTALLING INTAKE AIR MANIFOLD (M62) .

Unscrew and remove splash guard.

Unfasten drain plug for coolant on right engine block.

Drain and dispose of coolant.

To improve accessibility to coolant manifold, lift water valve out of mounting and press to one side.

Note. Illustration with engine removed.

Remove all coolant hoses from coolant manifold.

Scheme 681

Note. Illustration with engine removed.

Unfasten left and right screw connection on coolant manifold.

11 61 050 Removing and installing intake air manifold (M62)

Follow instructions for disconnecting and connecting battery, refer to 12 00 ... INSTRUCTIONS FOR DISCONNECTING AND CONNECTING BATTERY .

Disconnect negative battery lead.

Remove intake filter housing with air-mass flow sensor.

Release wiring harness section for engine from intake air manifold and lay to one side with cable ducts.

If necessary, remove ASC+T throttle.

If necessary, disconnect Bowden cables for throttle actuation.

If necessary, remove throttle assembly.

Disconnect fuel feed and return lines from injection pipe.

Note. From 9/98 version without fuel return line.

Follow instructions for removing and installing fuel hoses, refer to 13 53 540 REPLACING, SEALING FUEL HOSES .

Remove connector for brake force booster.

Scheme 682

Version up to 9/98

Remove clip and slide engine vent tube forwards.

Version from 9/98

Press sliding piece on vent pipe (1) forward until it is no longer fixed to cover.

Scheme 683

Keep vent pipe (1) pressed forward and lay towards bottom.

Scheme 684

11 62 060 Removing and installing/replacing exhaust manifold, left (M62 VANOS from 9/98)

(Cylinder bank 5-8)

Unscrew and remove splash guard.

Remove exhaust system.

Remove left heat baffle plate.

Remove Lambda control sensor, refer to 11 78 530 REPLACING LAMBDA CONTROL SENSOR, LEFT (M62) .

Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly; remove acoustic cover once all four press-stud fasteners have been unlocked.

11 62 065 Removing and installing/replacing exhaust manifold, right (M62 VANOS from 9/98)

(Cylinder bank 1-4)

Unscrew and remove splash guard.

Remove exhaust system.

Remove right heat baffle plate.

Disconnect plug connection to Lambda control sensor.

Release screw connection at exhaust manifold.

Note. Remove exhaust manifold towards bottom.

Scheme 685

11 62 142 Removing and installing or replacing both exhaust manifolds on left (M62 to 9/98)

(Cylinder bank 5-8)

Unscrew and remove splash guard.

Remove exhaust system.

Remove left heat baffle plate.

Unfasten nuts from left engine mount approx. 8 mm.

Scheme 686

(acoustic cover screwed down)

Pry out sealing cap. Unscrew nuts.

Remove acoustic cover.

Scheme 687

(acoustic cover with press-stud fastener)

Open press-studs (1 ... 4) one at a time, at the same time lift the acoustic cover slightly. Once all four press-studs have been opened, remove the acoustic cover.

Scheme 688

11 62 143 Removing and installing or replacing both exhaust manifolds on right (M62 to 9/98)

(Cylinder bank 1-4)

Unscrew and remove splash guard.

Remove exhaust system.

Remove right heat baffle plate.

Unfasten screw connection on exhaust manifold.

Note. First remove rear exhaust manifold, then front one: pull downwards to remove.

Scheme 689

11 78 510 Replacing oxygen sensor (M62 / S62) Disconnect connector for oxygen sensor.

(refer Oper. No. 13 00 002)

Unclip Lambda oxygen sensor cable from bracket.

Note. Use special tool 11 7 020 or special tool 11 7 030 to unfasten and tighten down the oxygen sensor.

Tightening Torque, refer to 11 78 1AZ 11 78 EMISSIONS-CONTROL, LAMBDA OXYGEN SENSOR .

Scheme 690

11 78 530 Replacing Lambda control sensor, left (M62)

(Refer to 13 00 002 CHECKING FUNCTION OF DIGITAL ENGINE ELECTRONICS (DME) )

Read out fault memory, clear if necessary.

Unclip Lambda control sensor cable from retainer.

Disconnect plug connection for Lambda control sensor.

Release Lambda control sensor with special tool 11 7 030.

Scheme 691

11 78 533 Replacing Lambda control sensor, right (M62)

(Refer to 13 00 002 CHECKING FUNCTION OF DIGITAL ENGINE ELECTRONICS (DME) )

Read out fault memory, clear if necessary.

Unclip Lambda control sensor cable from retainer.

Disconnect plug connection for Lambda control sensor.

Release Lambda control sensor with special tool 11 7 030.

Scheme 692