The N52KP and N51 engine continue to use the conventional "manifold
injection" system carried over from the N52. The fuel supply components are also
carried over with regard to the EKP module, fuel
The fuel is delivered from the fuel tank by the electric fuel pump via the
feed line (5) at an "feed" pressure of 5
bar to the high pressure pump. The feed pressure is monitored by the
low-pressure
If a fault is diagnosed in the system, such as e.g. failure of the
high-pressure sensor, the fuel-supply control
valve is de-energized; the fuel then flows via a so-called bypass into the rail.
In t
(cylinder bank 5 to 8)
Necessary preliminary tasks:
Remove servomotor for left eccentric shaft.
Remove ignition coils on cylinder bank 5 to 8.
Remove spark plugs on cylinder bank 5 to 8.
Remove left cylinder head cover.
Remove left inlet and exhaust adjustment units.
Remove left inlet cams
WARNING: Avoid contact with refrigerant and refrigerant oil.
Follow safety instructions for handling refrigerant R 134a.
Follow safety instructions for handling refrigerant oil.
IMPORTANT: Risk of damage
Restart engine only when A/C system has been correctly filled.
If A/C system is opened for m