Special tools required:
31 5 220
WARNING: Danger to life!
Secure engine in installation position to prevent it from falling down.
NOTE: Control arms with + or - marking (see illustration) are cambe
WARNING: Danger to life!
Mount securing fixture for vehicle on lifting platform to prevent the
vehicle from slipping off or tilting down.
NOTE: Control arms with + or - marking (see illustration) are
Special tools required:
31 4 151
31 4 152
31 4 153
IMPORTANT: For reasons of driving dynamics, the rubber mounts may only
be replaced in
pairs (refers to left and right control arms)!
Necessary
Head Gasket
The head gasket design on the N54 is unique to that engine.
It features a multi-layer steel design. There is no silicone rubber perimeter
"shelf" as on the N52. This is not
needed due to the aluminum block on the N54.
The N52KP and N51 engines are still using the head gasket that is f
Load control of the N54 engine is effected by means of the throttle valve and
the waste gate valves.
The throttle valve is the primary component in this process. The wastegate
valves are actuated to bring about a
fine tuning of the boost pressure. At full load the throttle valve is completely
op