11 31 032 Removing and installing or replacing left inlet camshafts (S65)

Necessary preliminary tasks: 

• Remove left  cylinder head cover  . 
• Remove left VANOS exhaust gear  
• Remove left VANOS inlet gear  

Release screws (1).

Tightening torque: 11 12 2AZ  . See CYLINDER HEAD .

E Intake camshaft

A Exhaust camshaft.

Fig 1: Identifying Screws And Bearing Cap

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Installation: 

Lubricate all bearing points with engine oil.

Release screws (1) from outside inwards in 1/2 turns.

Tightening torque: 11 12 2AZ  . See CYLINDER HEAD .

Remove inlet camshaft for cylinders 5 to 8.

Fig 2: Identifying Camshaft Screws

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Do not place timing chain in gearcase.

Secure timing chain (1) against falling down with a cable tie (3) to one screw (2).

Fig 3: Securing Timing Chain With Cable Tie To Screw

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Check plain compression rings for damage and replace if necessary.

The plain compression rings have catches at the joint.

Press plain compression rings apart upwards and downwards and remove towards front.

Fig 4: Pressing Plain Compression Rings Upwards And Downwards

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Insert inlet camshaft for cylinders 5 to 8.

Designation (E2) on dihedron points upwards.

Cams on cylinder no. 6 point upwards.

Installation: 

Lubricate all bearing points with engine oil.

Fig 5: Locating Inlet Camshaft For Cylinders 5 To 8

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Installation: 

All bearing shells are assigned to one cylinder.

E and A from (1 to 8), e.g. E 5= inlet side on cylinder no. 5.

Arrow must point in direction of travel to chain drive.

Fig 6: Identifying Bearing Shells Mark

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Release screws (1) from inside outwards in 1/2 turns.

Tightening torque: 11 12 2AZ  . See CYLINDER HEAD .

Fig 7: Identifying Camshaft Screws

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Adjust valve timing. 

Assemble engine.