11 12 006 Removing and installing/sealing right cylinder head cover (N63O1)

Special tools required: 

• 11 4 470

Necessary preliminary tasks: 

• Disconnect NEGATIVE TERMINAL .
• Remove ACOUSTIC COVER 
• Remove right-hand INTAKE SILENCER HOUSING .
• Remove right INTERCOOLER .
• Disconnect FUEL DELIVERY LINE .
• Detach engine wiring harness and wiring harness for injectors and set aside.
• Partially release positive wire to the alternator and set aside.
• Remove IGNITION COILS , cylinders 1-4.
• Remove HIGH PRESSURE PUMP .
• Remove INJECTORS , cylinders 1-4.
• Remove VACUUM PUMP .
• Remove CATALYTIC CONVERTER for cylinders 1-4.

Remove retaining clips (1).

Partially release the filling channel for the washer system.

Fig 1: Identifying Retaining Clips

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Release screws (1).

Remove heat shield (2).

Fig 2: Identifying Heat Shield And Screws

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Release screw connections in the sequence (16 to 1).

Remove cylinder head cover.

Fig 3: Right Cylinder Head Cover Bolts Tightening/Loosening Sequence (N63 O1)

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Clean sealing surface (1 and 2) with special tool 11 4 470 .

Fig 4: Identifying Sealing Surface And Seal

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Installation note: 

Replace profile seals (1 and 2).

Fig 5: Identifying Profile Seals

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Installation note: 

Renew sealing ring (1) for lubrication of vacuum pump.

Fig 6: Identifying Sealing Ring

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Installation note: 

It is important to insert screws (15 and 16) for exact positioning of the camshaft sensors.

Fit cylinder head cover.

Position screws (15 and 16).

Release screws again by a 90° turn.

Secure cylinder head cover in sequence (1 to 16) in two work steps.

Tightening torque 11 12 3AZ .

Fig 7: Right Cylinder Head Cover Bolts Tightening/Loosening Sequence (N63 O1)

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Assemble engine.