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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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
1.0 Recommended tools and equipment
To carry out outer shell grinding work by hand or machine, you must use
the recommended tools
and equipment.
The work area can be cleaned with conventional extractor systems (low dust
concentration).
Weight-reduced aluminum front end structure (GRAV):
T