Spark Plug: Service and Repair

12 12 011 - Replacing all spark plugs (S85)





Special tools required:
- 12 1 171 12 1 170 Spark Plug Tool
- 12 1 172 12 1 170 Spark Plug Tool





Necessary preliminary tasks:
- Switch off ignition.
- Remove all ignition coils Service and Repair.





Important!
Wear protective goggles.
Oil and dirt particles may get into your eyes!

Clean spark plug slot with compressed air.





Unscrew spark plugs with special tool 12 1 171 12 1 170 Spark Plug Tool.

Installation Note:
Tighten down spark plugs with special tool 12 1 171 12 1 170 Spark Plug Tool and special tool 12 1 172 12 1 170 Spark Plug Tool (torque limiter).
Without special tool 12 1 172 12 1 170 Spark Plug Tool, observe tightening torque.
Tightening torque 12 12 1AZ [1][2]Specifications.