Special tools required:
00 2 190
NOTE: If a tire sealant has been used, replace the wheel electronics.
When a tire has been removed, do not clean the rim with installed wheel
electronics with high-pressure cleaning equipment.
Do not treat wheel electronics with solvents, cleaning agents etc. If
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 171an