REPLACING ALL SPARK PLUGS (N42, N40, N46, N45, N52, N52K, N51)
Special tools required:
12 1 171
12 1 200.
Necessary preliminary tasks:
Switch off ignition
Remove ignition coils.
Unscrew spark
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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.
General information
The vehicle is in idle state prior to opening from
the outside and after exiting a
REPLACING WIRING HARNESS SECTION FOR ENGINE (N62)
Necessary preliminary tasks:
Read out DME fault memory
Disconnect battery negative lead
ENGINE BONNET/HOOD in assembly position
Remove FRESH AIR DUCT on right and if necessary on left
Remove center of ASSEMBLY PARTITION WALL
Remove intake air