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 plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with special tool 12 1 171a
Follow the following when
refueling
General information
Follow the fuel recommendation prior to refueling.
When refueling, insert the filler nozzle completely
into the filler pipe. Lifting up the filler nozzle during
refueling causes:
Premature switching off.
Reduced return of the fuel vapors.