Depending on the situation, the vehicle is in one
of the three states:
Idle state.
Standby state.
Drive-ready state.
Idle state
Principle
When the vehicle is in idle state, it is switched
off.
Ge
Principle
Turning on drive-ready state corresponds to
starting the engine.
General information
Some functions, such as DSC Dynamic Stability
Control, can only be used with drive-ready state
switched o
There are three "Golden Rules" to adhere to when diagnosing concerns on the
N54 engine:
1. When diagnosing cases of smoke from the exhaust, it is important to avoid
unnecessary replacement of
the turbochargers. Smoke can be caused by oil consumption such as the crankcase
ventilation system.
Alwa
Necessary preliminary tasks:
Remove Central Information Display.
Carefully release catches (1).
Installation:
Catches (1) must not be damaged.
Fig. 35: Identifying Catches
Carefully raise trim (2).
Disconnect plug connection (1) and remove trim (2) from CID.
Fig. 36: Identifying Plug Connectio