12 12 011 Replacing All Spark Plugs (N62, N62TU)
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Special tools required:
- 12 1 171
- 12 1 172
Necessary preliminary tasks:
- Switch off ignition
- Remove all IGNITION COILS .
Unscrew spark plugs with special tool 12 1 171.
Installation:
Tighten down spark plugs with special tool 12 1 171 and special tool 12 1 172 (torque limiter).
Without special tool 12 1 172, observe tightening torque.
Tightening torque 12 12 1AZ. See ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .