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
Special tools required:
11 9 190
11 9 460
11 9 461
11 9 462
11 9 463
(cylinder bank 1 to 4)
Necessary preliminary tasks:
Read fault memory and make a documentary record.
Remove servomotor for right eccentric shaft.
Remove right cylinder head cover.
Remove all spark plugs on cylinder ba
Necessary preliminary tasks:
Remove front left underbody panelling.
Disconnect plug connection (1).
Gently press retaining tabs apart in direction of arrow and remove receiving
antenna (2).
Fig. 9: Removing Receiving Antenna
REMOVING AND INSTALLING/REPLACING AN RDC TRIGGER TRANSMITTER
(FRONT)