11 31 038 Removing and installing/replacing right exhaust camshaft (S65)

Necessary preliminary tasks: 

• Remove right cylinder head cover  . 
• Remove right VANOS exhaust 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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Remove bearing caps.

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 exhaust camshaft for cylinders 1 to 4.

Fig 2: Identifying Exhaust Camshaft Screws

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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 3: Pressing Plain Compression Rings Upwards And Downwards

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Insert exhaust camshaft for cylinders 1 to 4.

Designation (A1) on dihedron points upwards.

Cams on cylinder no. 4 point upwards.

Installation: 

Lubricate all bearing points with engine oil.

Fig 4: Identifying Cylinder No. 4 Cams

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Installation: 

All bearing shells are assigned to one cylinder.

E and A from (1 to 8), e.g. A 1= exhaust side on 1st cylinder.

Arrow (1) must point in direction of travel to chain drive.

Fig 5: Identifying Bearing Shells Marks

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

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

Fig 6: Identifying Exhaust Camshaft Screws

Courtesy of BMW OF NORTH AMERICA, INC.

Adjust valve timing.

Assemble engine.