REPLACING ALL SPARK PLUGS (N54, N63, N74)
Necessary preliminary tasks
Switch off ignition.
Remove IGNITION COILS.
IMPORTANT: Wear safety goggles.
Oil and dirt particles may get into your eyes!
Clean spark plug slot with compressed air.
Unscrew spark plugs with special tool 12 1 220 and extensi
Components in the Vehicle
Fig. 137: Identifying DCC, ACC Stop & Go Components, F01/F02 (View From
Front)
DCC/ACC STOP AND GO SYSTEM COMPONENTS REFERENCE CHART
Electronic transmission control module
Engine control system
Short-range radar sensor (SRR), right
Long-range radar sensor (LRR)