11 12 005 Removing and installing/sealing left cylinder head cover (N63 O1)
Special tools required:
- 11 4 470 .
Necessary preliminary tasks:
- Disconnect NEGATIVE TERMINAL .
- Remove ACOUSTIC COVER .
- Remove left INTERCOOLER .
- Remove INTAKE SILENCER HOUSING .
- Remove COOLANT VALVE for heater feed line.
- Disconnect FUEL DELIVERY LINE .
- Detach wiring harness for injectors and lay to one side.
- Remove IGNITION COILS , cylinders 5-8.
- Remove HIGH PRESSURE PUMP .
- Remove injectors, cylinders 5-8. See REMOVING/INSTALLING AN INJECTOR .
- Remove VACUUM PUMP .
- Remove CATALYTIC CONVERTER for cylinders 1-4.
- Remove CATALYTIC CONVERTERS , cylinders 5-8.
Release screws (1).
Remove heat shield (2).
Tightening torque: 11 65 4AZ .
Release screw connections in the sequence (16 to 1).
Remove cylinder head cover.
Graphic shows S63T1.
Clean sealing surface (1) with special tool 11 4 470 .
Graphic shows N63.
Installation note:
Replace profile seals (1 and 2) of cylinder head cover.
Installation note:
It is important to join screw (15 and 16) for exact positioning of the camshaft sensors.
Mount cylinder head covers.
Position screw (15 and 16).
Release screws again by a 90° turn.
Secure cylinder head cover in sequence (1 to 17) in two work steps.
Tightening torque 11 12 3AZ .
Assemble engine.