4.2L V8 5V Engine Mechanical, Engine Code(s): Bfm: Overview Audi A8 D3 facelift

Scheme 10

The engine number ("engine code" and "serial number") are stamped on left side of cylinder block.

In addition, a sticker with "engine code" and "serial number" is affixed to timing belt cover.

The engine code is also included on vehicle data plate.

Ribbed belt drive, assembly overview

Note. Before removing toothed belt, mark the running direction with chalk or felt tip marker. A reversed turning direction can cause damage to the belt under operating conditions. When installing the ribbed belt, make sure it is seated correctly on the pulleys

Scheme 11

1 - Ribbed belt

1. Removing and installing --> «Ribbed belt, removing and installing»(ref-289202-S11016029762008062700000)

2 - 22 Nm

3 - 45 Nm

4 - Generator

1. Removing and installing --> «27 - BATTERY, STARTER, GENERATOR, CRUISE CONTROL»(ref-289227-S36040774962008062700000)

5 - 43 Nm

6 - Cover

1. For idler pulley

7 - 45 Nm

8 - Upper idler pulley

1. For ribbed belt

9 - Tensioning device for ribbed belt

1. To release tension on ribbed belt, swing using box wrench --> «Ribbed belt, removing and installing»(ref-289202-S11016029762008062700000)

10 - 22 Nm

11 - Vibration damper

1. With belt pulley for ribbed belt
2. Removing and installing --> «Vibration damper, removing and installing»(ref-289202-S34100455992008062700000)

12 - Lower idler pulley

1. For ribbed belt

13 - Pulley

1. For power steering pump
2. Removing and installing --> «Removing and installing belt pulley for power steering pump»(ref-289202-S12055143092008071700000)

14 - Shim

1. Different thicknesses
2. After replacing power steering vane pump, A/C compressor or bracket for vane pump and A/C compressor, determine thickness --> check alignment of ribbed belt --> «Ribbed belt alignment, checking»(ref-289202-S05403204792008062700000)

15 - Power steering pump

1. For power steering
2. Removing and installing --> «48 - STEERING»(ref-289219-S07076849872008062700000)

16 - 22 Nm

17 - 40 Nm

18 - Bracket

1. For A/C compressor and vane pump

19 - Alignment bushing

1. 2 pieces
2. Ensure they are seated correctly in bracket

20 - 22 Nm

21 - Air conditioner compressor

22 - 22 Nm

23 - Alignment bushing

1. 2 pieces
2. Check for proper seating

24 - 22 Nm

25 - 23 Nm

26 - Cover

1. For idler pulley

Scheme 12

1. Lock carrier pulled toward front --> «Lock carrier, pulling toward front»(ref-289202-S33545844662008062700000) .
2. Ribbed belt removed --> «Ribbed belt, removing and installing»(ref-289202-S11016029762008062700000) .

1. For removing and installing bolts - arrows - , use Spanner Wrench 3212 to counter hold.

1. Installed location: Writing "front" indicates direction of travel
2. Check alignment of ribbed belt --> «Ribbed belt alignment, checking»(ref-289202-S05403204792008062700000)

Toothed belt drive, assembly overview

Note. Before removing the ribbed belt, mark the running direction with chalk or felt tip marker. A reversed turning direction can cause damage to the belt under operating conditions.

Scheme 13

1 - 10 Nm

2 - Mounting pin

3 - 20 Nm plus an additional 90° ( 1 / 4 turn)

1. Replace

4 - Washer

1. For tensioning roller

5 - 40 Nm

6 - Tensioning roller

7 - Tensioning lever

8 - 22 Nm

9 - 55 Nm

1. Replace
2. Grease thread and head seating surface

10 - Securing plate

1. Replace
2. Side with writing "rear hinten" points toward rear

11 - Right camshaft gear

1. When removing and installing, remove toothed belt --> «Toothed belt, removing and installing»(ref-289202-S15249254682008062700000)
2. Pull off using puller T40001 and claws T40001/2

12 - 10 Nm

1. Insert with locking fluid
2. Locking fluid

13 - Right rear toothed belt guard

14 - Idler roller

15 - Pin bolt, 9 Nm

16 - 14 Nm

1. Bolt class 10.9

17 - Coolant pump

1. Removing and installing --> «Coolant pump, removing and installing»(ref-289202-S15417670082008062700000)

18 - Gasket

1. Replace

19 - Left rear toothed belt guard

20 - 10 Nm

1. Insert with locking fluid
2. Locking fluid

21 - 10 Nm

22 - Left camshaft gear

1. When removing and installing, remove toothed belt --> «Toothed belt, removing and installing»(ref-289202-S15249254682008062700000)
2. Pull off using puller T40001 and claws T40001/2

23 - Securing plate

1. Replace
2. Side with writing "rear hinten" points toward rear

24 - 55 Nm

1. Replace
2. Grease thread and head seating surface

25 - Toothed belt

1. Before removing, mark direction of rotation using chalk or felt-tip marker
2. Check for wear
3. Removing --> «Toothed belt, removing and installing»(ref-289202-S15249254682008062700000)
4. Installing (adjusting valve timing) --> «Toothed belt, removing and installing»(ref-289202-S15249254682008062700000)

26 - Eccentric roller

27 - 45 Nm

28 - Crankshaft toothed belt sprocket

1. There must be no oil on contact surface between toothed belt sprocket and crankshaft
2. Only possible to install in one position

29 - 200 Nm plus an additional 1 / 2 turn (180°)

1. Replace
2. Do not oil lubricate additionally
3. Use crankshaft holder 3242 for loosening and tightening
4. Install crankshaft holder 3242 --> (Scheme 21)

30 - Washer

1. For tension lever

31 - Tensioning element

Scheme 14

Special tools, testers and auxiliary items required

1. Tightener pulley wrench T40009
2. Crankshaft Holder 3242
3. Torque wrench V.A.G 1783
4. Ratchet 1/4" VAS 6234

1. Puller T40001 with claws T40001/2
2. Camshaft locator T40005

Scheme 15

1. Securing pin T40011

1. Spanner Wrench 3212

Toothed belt, removing

Note. Before raising the vehicle on a hoist (wheels off the ground), first activate the vehicle jack mode --> 43 - SELF LEVELING SUSPENSION .

1. Remove front bumper --> «63 - BUMPERS»(ref-289221-S15322224352008062700000) .
2. Remove lock carrier --> «50 - BODY - FRONT»(ref-289221-S10914933722008062700000) .
3. Remove ribbed belt --> «Ribbed belt, removing and installing»(ref-289202-S11016029762008062700000)

1. Remove engine cover - 2 - upward.
2. Remove upper toothed belt guard at left and right.

1. Turn crankshaft at center bolt of toothed belt gear in direction of engine rotation to TDC Cyl. 5 5 marking.

Scheme 16

1. Notch - B - aligns with marking - A

Note. Turning over engine is performed at the center bolt of the crankshaft.

1. Check position of camshafts

Scheme 17

1. The large holes - arrows - on securing plates at camshaft gears must align on inside.

1. In case they do not align, turn one more rotation.

Scheme 18

1. Disconnect water pipe - arrow - from oil pan.

Scheme 19

1. Disconnect water pipe from engine block - arrow -.

Scheme 20

1. Remove locking bolt - arrow - of TDC marking at upper part of oil pan.

Note. In the crankshaft, a TDC bore is located exactly behind the locking bolt (can be felt by touch).

Scheme 21

1. Install crankshaft holder 3242 in hole for removed locking bolt.

1. Remove vibration damper of crankshaft after removing 8 attachment bolts - 1 -.
2. Remove center toothed belt cover.

Scheme 22

1. Separate torque support - arrow - from torque support valve N382.

Scheme 23

1. Remove bracket for torque support valve N382 - arrows -.

Scheme 24

1. Using an 8 mm hex socket wrench, turn toothed belt tensioner in direction of - arrow - until tensioning lever pushes tensioner together far enough so that locking pin T40011 can be inserted into bores of pistons and housing.

Note. When inserting, bracket for torque support valve N382 remains installed. The locking pin can be guided through a hole in the bracket to be inserted into the holes in the tensioner. The toothed belt tensioner is oil-dampened. Compress it by slowly applying constant pressure. Mark direction of rotation of toothed belt. Reversed running direction can cause damage.

Scheme 25

1. Loosen bolt - arrow - of eccentric pulley.

Scheme 26

1. Install camshaft adjustment T40005 in locking plates of camshafts.
2. Loosen both camshaft gear bolts approx. 5 turns.

Note. The camshaft adjustment T40005 serves as a retainer.

1. Remove camshaft adjustment T40005.

Scheme 27

1. Remove left and right camshaft gears from cone using Puller T40001 with Claw T40001/2.
2. Remove toothed belt.

Installing (Adjusting valve timing)

Note. When turning camshaft, crankshaft must not be at TDC. Valves and/or pistons may be damaged.

Scheme 28

1. Replace bolts - 1 - for camshaft gears and securing plates - 2 -.
2. Grease threads and head seating surfaces of bolts for camshaft gears.
3. Install bolts far enough so that they can still just be turned and do not cant.
4. Observe proper seating of securing plates on camshafts.

Before installing toothed belt, make sure crankshaft and camshafts are set to TDC cylinder 5

1. The large holes - arrows - on securing plates at camshaft gears must align on inside.

1. Crankshaft holder 3242 must be installed.

Scheme 29

1. Route toothed belt in the following sequence: Toothed belt gear crankshaft - 5 - , eccentric pulley - 4 - , tensioner - 6 - , toothed belt gear left camshaft - 3 - , coolant pump - 2 -.
2. At last, place toothed belt on toothed belt gear of right camshaft - 1 -.

Scheme 30

1. Turn tensioning lever twice at 40 Nm in direction of - arrow - to pretension toothed belt.

Note. In the next two illustrations, depicted with torque support bracket removed, for the sake of illustration.

Scheme 31

1. Insert a 5 mm hex socket wrench flat between tensioning lever - 1 - and piston - 2 - of tensioner.

Scheme 32

1. Tighten toothed belt by turning eccentric pulley using tightener pulley wrench T40009 and turn torque wrench V.A.G 1783 using ratchet VAS 6234 indirection of - arrow - and hold.

1. Protection torque 6 Nm

1. Tighten eccentric pulley.

Note. Make sure that position does not change while tightening.

1. Insert camshaft adjustment T40005 into securing plates of both camshafts.

1. Press in camshaft adjustment as far as possible.

1. Tighten camshaft gears.

Note. The camshaft adjustment T40005 serves as a retainer.

1. Remove camshaft adjustment T40005.
2. Remove 5 mm hex socket wrench.

Scheme 33

1. Turn tensioning lever using 8 mm hex socket wrench in direction of - arrow - until Locking Pin T40011 can be pulled out.
2. Remove crankshaft holder 3242.
3. Turn crankshaft two complete rotations in direction of engine rotation until crankshaft stands at TDC cyl. 5 again.

1. The large holes - arrows - on securing plates at camshaft gears must align on inside.

Scheme 34

1. Check dimension - a - between tensioning lever and tensioner housing.

1. Dimension - a - = 5.0 ± 1.0 mm

Note. If dimension - a - is not obtained, repeat adjustment.

1. To check timing, bolt crankshaft holder 3242 in bore at upper part of oil pan again.

1. Check camshaft positions using camshaft adjustment T40005.

Note. If camshaft locator cannot be inserted, repeat adjustment.

1. Remove camshaft adjustment T40005 from both cylinder heads.
2. Remove crankshaft holder 3242.
3. Bolt locking bolt of TDC marking into upper part of oil pan using new sealing ring.

Further installation is in reverse order of removal, note the following

Note. Replace gaskets, seals and O-rings. Secure all hose connections using hose clamps appropriate for the model type .

1. Install ribbed belt --> «Ribbed belt, removing and installing»(ref-289202-S11016029762008062700000) .
2. Install lock carrier with attachments --> «50 - BODY - FRONT»(ref-289221-S10914933722008062700000) .
3. Fill with coolant.
4. Install torque support --> «Torque support (with torque support valve N382), assembly overview»(ref-289202-S41597847662008062700000) .

Note. Only reuse drained coolant if cylinder head or engine block was not replaced. Dirty coolant must not be re-used.

Torque specifications

Scheme 35

1 - 10 Nm

2 - Oil baffle

3 - 14 Nm

4 - 14 Nm

1. Bolt class 10.9

5 - Seal

1. For crankshaft
2. Removing and installing --> «Seal for crankshaft (ribbed belt side), replacing»(ref-289202-S38488197562008062700000)

6 - Spray nozzle valve, 35 Nm

7 - O-ring

1. Replace

8 - Sealing flange, front

1. Removing and installing --> «Front sealing flange, removing and installing»(ref-289202-S24550651542008062700000)

9 - Gasket

1. Replace

10 - Thrust collar

1. In case of signs of wear, pull off and turn, or replace --> «Seal for crankshaft (ribbed belt side), replacing»(ref-289202-S38488197562008062700000)

11 - Gasket

1. Replace

12 - Rear sealing flange with sealing ring

1. Removing and installing --> «Rear sealing flange, removing and installing»(ref-289202-S00109739912008062700000)

13 - Shim

1. 3.4 mm thick

14 - Drive plate

1. Removing and installing --> «Drive plate, removing and installing»(ref-289202-S42313017862008062700000)

15 - Washer

1. 1.5 mm thick

16 - 30 Nm plus an additional 90° ( 1 / 4 turn)

17 - 10 Nm

18 - 14 Nm

19 - 10 Nm

1. Fasten diagonally in steps

20 - Oil pan (lower section)

1. Removing and installing --> «Lower part of oil pan, removing and installing»(ref-289202-S05682217252008062700000)

Crankshaft, assembly overview

Note. Secure engine to assembly stand using engine and transmission holder VAS 6095 when performing repair work --> Engine, attaching to engine stand .

Scheme 36

1 - Bolt, 22 Nm

1. For bearing cap
2. Replace
3. Tightening order --> «Crankshaft bearing cap, installing»(ref-289202-S28299615322008071700000)

2 - Alignment bushing

1. Insert in cylinder block

3 - Drive sprocket for oil pump

1. Removing and installing --> «Oil pump drive sprocket, removing and installing»(ref-289202-S08935357682008062700000)

4 - Bearing cap

1. Observe identification --> «Crankshaft bearing cap identification»(ref-289202-S12207103352008071700000)
2. Removing --> «Crankshaft bearing cap, removing»(ref-289202-S02082721642008071700000)
3. Installing --> «Crankshaft bearing cap, installing»(ref-289202-S28299615322008071700000)

5 - Nut, 35 Nm plus an additional 90°

1. For bearing cap
2. Replace
3. Tightening order --> «Crankshaft bearing cap, installing»(ref-289202-S28299615322008071700000)

6 - Thrust washer

1. Only on 3rd crankshaft bearing
2. Lubricating grooves face outward
3. Observe locating point
4. Measuring crankshaft axial clearance --> «Axial clearance, measuring»(ref-289202-S26652226802008062700000)

7 - Bearing shell

1. For bearing cap without oil groove
2. Do not interchange used bearing shells (mark)
3. Insert new bearing shells for cylinder block with proper color marking --> «Allocation of crankshaft bearing shells for bearing cap»(ref-289202-S24426911162008071700000)

8 - Crankshaft

1. Measuring axial play --> «Axial clearance, measuring»(ref-289202-S26652226802008062700000)
2. Radial clearance, measuring --> «Radial clearance, measuring»(ref-289202-S30477116972008062700000)
3. Do not turn crankshaft when measuring radial play
4. Crankshaft dimensions --> «Crankshaft dimensions»(ref-289202-S14619100982008062700000)

9 - Thrust washer

1. Only on 3rd crankshaft bearing
2. Lubricating grooves face outward
3. Measuring crankshaft axial clearance --> «Axial clearance, measuring»(ref-289202-S26652226802008062700000)

10 - Bearing shell

1. For cylinder block with oil groove
2. Do not interchange used bearing shells (mark)
3. Insert new bearing shells for cylinder block with proper color marking --> «Allocation of crankshaft bearing shells for cylinder block»(ref-289202-S27811851032008071700000)

11 - Studs

12 - Cylinder block

13 - Bolt, 22 Nm

1. For bearing cap
2. Replace
3. Tightening order --> «Crankshaft bearing cap, installing»(ref-289202-S28299615322008071700000)

Scheme 37

1. Bearing 1 is located on belt pulley side.

Scheme 38

1. Remove crankshaft bearing cap bolts or nuts.
2. Remove crankshaft bearing caps from cylinder block using puller T10055.

Scheme 39

Bearing shells with correct thickness are allocated to cylinder block in the factory. Colored dots on bearing shells serve for identifying bearing shell thickness.

Note. Arrow - points to belt pulley side.

Allocation of bearing shells to cylinder block is identified with a letter by each bearing.

Scheme 40

Bearing shells with correct thickness are allocated to bearing cap at factory. Colored dots on the bearing shells serve for identifying bearing shell thickness - arrows -.

Allocation of bearing shells to crankshaft is marked at crankshaft counterweight by colored dots.

Scheme 41

1. Replace bolts - A - and nuts - 1 through 10 -.
2. Inserting alignment bushings into cylinder block.
3. Tighten bearing cap nuts or bolts in the following sequence

1. Hand-tighten bolts A.
2. Tighten nuts 1 through 10 to 35 Nm.
3. Tighten nuts 1 through 10 90° (1/4 additional turn) using a rigid wrench.
4. Tighten bolts A to 22 Nm.
5. Tighten bolts A 90 (1/4 turn) further using rigid wrench.

Pistons and connecting rods, assembly overview

Note. Oil injector jet for piston cooling --> Oil spray jet for piston cooling

Scheme 42

1 - Connecting rod bolt - 30 Nm plus an additional 90° ( 1 / 4 turn)

1. Replace
2. Lubricate threads and contact surface
3. Tighten to 30 Nm to measure radial play, do not turn further

2 - Connecting rod bearing cap

1. Do not interchange
2. Mark allocation to cylinder using a color marker - B - --> «Mark connecting rod»(ref-289202-S03789030272008071700000)
3. When installing bearing cap, observe: Tabs on contact surfaces on front side of connecting rod must align - A
4. Installation position of connecting rod pairs --> «Connecting rod, installed location»(ref-289202-S29011754572008071700000)

3 - Bearing shell

1. Note installation position
2. Do not interchange used bearing shells (mark)
3. Radial clearance, measuring --> «Radial clearance of connecting rod, checking»(ref-289202-S34119121802008062700000)

4 - Connecting rod

1. Only replace as set
2. Mark allocation to cylinder using a color marker - B - --> «Mark connecting rod»(ref-289202-S03789030272008071700000)
3. When installing bearing cap, observe: Tabs on contact surfaces on front side of connecting rod must align - A
4. Installation position of connecting rod pairs --> «Connecting rod, installed location»(ref-289202-S29011754572008071700000)

5 - Circlip

6 - Piston pin

1. If tight, heat piston to 60°C
2. Removing and installing using a drift VW 222 A

7 - Piston

1. Installed position and allocation, piston/cylinder --> «Installed position of piston and piston/cylinder allocation»(ref-289202-S29457702812008071700000)
2. Arrow on piston face points toward belt pulley side
3. Checking --> «Checking piston»(ref-289202-S30256420892008071700000)
4. Install with piston ring compressor

1. Piston and cylinder dimensions --> «Piston and cylinder dimensions»(ref-289202-S33323700912008062700000)
2. Cylinder bore, checking --> «Checking cylinder bores»(ref-289202-S25675816782008071700000)

8 - Piston rings

1. Offset gaps by 120°
2. Use piston ring pliers for removal and installation
3. Marking or identification "TOP" i.e. marked side must face toward piston head
4. Checking ring gap --> «Checking piston ring gap»(ref-289202-S38709465452008071700000)

1. Check piston ring groove clearance --> «Checking ring to groove clearance»(ref-289202-S02633677322008071700000)

Scheme 43

1. Push ring squarely from above down to approx. 15 mm from bottom end of cylinder. To do this use a piston without rings.

Scheme 44

1. Clean ring groove of piston before checking.

Cylinder head, assembly overview

Note. Illustration depicts cylinder head of cylinder bank 2 (left).

Scheme 45

1 - Cylinder head

1. Remove left cylinder head --> «Left cylinder head, removing»(ref-289202-S31897501722008062700000)
2. Remove right cylinder head --> «Right cylinder head, removing»(ref-289202-S30988227542008062700000)
3. Check for distortion --> «Checking cylinder head for distortion»(ref-289202-S41028065682008071700000)
4. Resurfacing is not permissible

1. Installing --> «Cylinder head, installing»(ref-289202-S06018365182008062700000)
2. Renew coolant after replacing

2 - Cylinder head bolt

1. Replace
2. Note loosening sequence
3. Left cylinder head --> see scheme 278
4. Right cylinder head --> see scheme 287

1. Observe sequence for tightening --> see scheme 293

3 - Cylinder head cover gaskets and ignition coils

1. Replace if damaged or leaking

4 - Cylinder head cover gasket

1. Replace if damaged or leaking
2. Seal contact surfaces with sealant before installing --> «Seal contact surfaces of bearing cap/cylinder head»(ref-289202-S13214438662008071700000)
3. Sealant

5 - Cylinder head cover

1. Removing and installing left cylinder head cover --> «Left cylinder head cover, removing and installing»(ref-289202-S14564763332008062700000)
2. Removing and installing right cylinder head cover --> «Right cylinder head cover, removing and installing»(ref-289202-S03900222242008062700000)

6 - Special bolt, 10 Nm

1. Replace if damaged or leaking

7 - Gasket

1. Replace if damaged or leaking

8 - Gasket

1. For cap
2. Replace if damaged or leaking

9 - Cap

10 - 10 Nm

11 - Ignition coil

1. Removing --> «01 - MAINTENANCE»(ref-289228-S01786131922008062700000)

12 - Gasket

1. Replace if damaged

13 - Cylinder head cover gasket

1. Replace if damaged or leaking

14 - O-ring

1. Replace

15 - Rear coolant pipe

16 - 10 Nm

17 - Combination valve for Secondary Air Injection (AIR)

18 - 10 Nm

19 - Gasket

1. Replace

20 - Cylinder head gasket

1. Replacing --> Cylinder head, removing --> «Left cylinder head, removing»(ref-289202-S31897501722008062700000)
2. Installed location: Part number facing cylinder head
3. Replace coolant after replacing

Scheme 46

1. Check cylinder head at multiple points for distortion, using straight edge and feeler gauges.

1. Maximum permissible warpage: 0.1 mm

Scheme 47

1. Apply thin layer of sealant (dia. approx. 5 mm) - arrows - to edges of sealing surfaces between bearing cap and cylinder head.

1. Sealant

Valvetrain, assembly overview

Note. Cylinder heads with cracks between valve seats or between valve seat and spark plug thread can still be used without loss of service life if the cracks are minute (max. 0.3 mm width) or only the first four threads of a spark plug thread are cracked. After installing the camshafts, the engine may not be started for approx. 30 minutes. The hydraulic equalization elements must seat themselves (otherwise the valves will crash into the pistons). After working on the valvetrain, carefully rotate engine by hand at least 2 full revolutions to ensure that valves do not strike the pistons when starting. Always replace seals, sealing rings and O-rings.

Scheme 48

1 - Double bearing cap

1. Before installing, coat contact surfaces of front and rear bearing caps lightly with sealant --> «Coat bearing cap with sealant»(ref-289202-S32427003812008071700000)
2. Sealant

2 - 5 Nm plus an additional 90° ( 1 / 4 turn)

1. Replace

3 - Hydraulic plunger

1. Pressed into roller rocker lever

4 - Exhaust camshaft

1. Checking axial play --> «Camshafts, checking axial clearance»(ref-289202-S26353745842008062700000)
2. Removing and installing --> «Camshafts and camshaft adjusters (right cylinder head), removing and installing»(ref-289202-S21780744662008062700000)
3. Check radial play using Plastigage (cam follower removed), wear limit 0.1 mm, run-out max. 0.01 mm

5 - Bearing cap for intake camshaft

1. Note installation position and allocation --> see scheme 330
2. Observe alignment bushings if present

6 - Bearing cap for exhaust camshaft

1. Note installation position and allocation --> see scheme 330
2. Observe alignment bushings if present

7 - 5 Nm plus an additional 90° ( 1 / 4 turn)

1. Replace

8 - Double bearing cap

9 - Cap

1. Replace
2. To remove, push through using screwdriver and pry out
3. To install, drive in using retractors 3202 or suitable lever

10 - Bearing cap

1. Before installing, coat contact surfaces of front and rear bearing caps lightly with sealant --> «Coat bearing cap with sealant»(ref-289202-S32427003812008071700000)
2. Sealant

11 - Roller rocker lever

1. For exhaust camshaft
2. Removing and installing --> «Roller rocker lever, removing and installing»(ref-289202-S01511836522008062700000)

12 - Drive chain

1. Installing
2. Left cylinder head --> «Camshafts and camshaft adjusters (left cylinder head), removing and installing»(ref-289202-S32565507982008062700000)
3. Right cylinder head --> «Camshafts and camshaft adjusters (right cylinder head), removing and installing»(ref-289202-S21780744662008062700000)

13 - Roller rocker lever

1. For intake camshaft
2. Removing and installing --> «Roller rocker lever, removing and installing»(ref-289202-S01511836522008062700000)

14 - Intake camshaft

1. Checking axial play --> «Camshafts, checking axial clearance»(ref-289202-S26353745842008062700000)
2. Removing and installing --> «Camshafts and camshaft adjusters (right cylinder head), removing and installing»(ref-289202-S21780744662008062700000)
3. Check radial play using Plastigage (cam follower removed) wear limit 0.1 mm, run-out max. 0.01 mm

15 - 5 Nm plus an additional 90° ( 1 / 4 turn)

1. Replace

16 - Mechanical camshaft adjuster

1. With Camshaft Adjustment Valve 1 N205
2. Before removing, secure using Bracket For Chain Adjustment 3366 --> «Camshafts and camshaft adjusters (right cylinder head), removing and installing»(ref-289202-S21780744662008062700000)

17 - Rubber/metal seal

1. Replace

18 - Valve keepers

19 - Valve spring plate

20 - Valve spring

21 - Valve stem seal

1. Replacing --> «Valve stem seals, replacing»(ref-289202-S00022677742008062700000) .

22 - Gasket

1. Replace

23 - Cylinder head

1. See note --> «Valvetrain, assembly overview»(ref-289202-S05945416382008062700000)
2. Check valve guides, grind valve seats --> «Valve guides, checking»(ref-289202-S10320223082008062700000)
3. Rework valve seats --> «Valve seats, reworking»(ref-289202-S23699652452008062700000)

24 - Exhaust valve

1. Do not rework, only lapping is permitted
2. Valve dimensions --> «Valve dimensions»(ref-289202-S42802822152008071700000)
3. Check valve guides, grind valve seats --> «Valve guides, checking»(ref-289202-S10320223082008062700000)

25 - Intake valve

1. Do not rework, only lapping is permitted
2. Valve dimensions --> «Valve dimensions»(ref-289202-S42802822152008071700000)
3. Check valve guides, grind valve seats --> «Valve guides, checking»(ref-289202-S10320223082008062700000)

26 - Seal

1. For Camshaft Position (CMP) Sensor
2. Replacing --> «Camshaft Position (CMP) Sensor seals, replacing»(ref-289202-S34025543732008062700000) .

27 - Cover for Camshaft Position (CMP) Sensor

1. Note installation location, notch in camshaft

28 - Washer

1. Conical

29 - 23 Nm

30 - Camshaft Position (CMP) sensor

31 - 10 Nm

32 - Shaft for roller rocker lever, intake side

1. Removing and installing --> «Roller rocker lever, removing and installing»(ref-289202-S01511836522008062700000)

33 - 10 Nm

34 - 10 Nm

35 - Shaft for roller rocker lever, exhaust side

1. Removing and installing --> «Roller rocker lever, removing and installing»(ref-289202-S01511836522008062700000)

36 - 55 Nm

37 - Camshaft sprocket

38 - Seal

1. For camshaft
2. Replacing --> «Camshaft seals, replacing»(ref-289202-S19671970192008062700000) .

39 - O-ring

1. For roller rocker lever shaft
2. Replace

Scheme 49

Note. Valves must not be reworked. Only lapping is permitted.

Scheme 50

1. Lightly coat hatched surface of double bearing cap as well as outer bearing cap next to camshaft adjuster with sealant and install bearing cap (observe alignment bushings).

1. Sealant