12 51 100 Replacing wiring harness section for ignition coils
Necessary preliminary tasks:
- Read out fault memory of DME control unit
- Switch off ignition
- Disconnect BATTERY NEGATIVE LEAD from battery.
- Remove cover for ignition coils
Unfasten screws.
Open cover (1) of electronics box and remove.
Unlock plug (1) and detach from DME control unit.
Unlock plug (2) and remove.
Lift wiring harness with profile seal (3) out of electronics box.
Installation:
To prevent leaks, you must install profile seal (3) correctly.
Unlock plug retainer (1) of ignition coil and disconnect plug.
NOTE:
This procedure is applicable to all ignition coils.
Release nuts and remove grounding cable.
Unclip cable duct (2).
Unclip wiring harness (3) and remove.
NOTE:
Now clear the fault memory.