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
Principle
Contact the BMW Group Roadside Assistance if
assistance is needed in the event of a breakdown.
General information
In the event of a breakdown, data on the vehicle's
condition is transmitted to the BMW Roadside Assistance.
There are various ways of contacting BMW
Roadside Assistance.
Via