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 p
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Principle
Pre-conditioning cools or heats the car's interior
prior to departure to a comfortable temperature.
The system automatically cools, vents, and heats
depending on the interior, external, and set temperature.
Snow and ice may be removed more
easily.
The system starts the engine automatica
IMPORTANT: Danger of scalding! Only perform this work after engine has
cooled down.
Necessary preliminary tasks:
Remove underbody protection.
Recycling
Transmission fluid emerges when oil lines are detached from heat exchanger.
Catch and dispose of escaping transmission fluid.
Observe country-