12 51 100 Replacing Wiring Harness Section For Ignition and Injectors

12 51 100 Replacing Wiring Harness Section For Ignition And Injectors (N55)







IMPORTANT: Read and comply with notes on protection against electrostatic discharge (ESP protection).







Necessary preliminary tasks:
- Read out the fault memory of the diagnostic development control unit
- Switch off ignition
- Disconnect battery negative lead
- Remove ignition coil cover
- Remove clean air pipe
- Remove rear ignition coil cover







Unlock rear plug (1) from the control unit and disconnect.
Release rear wiring harness from intake plenum.







Release nuts (1) and remove earth cable.
Tightening torque 12 90 5AZ.
Unlock all plugs from ignition coils and injectors and detach.
Unclip wiring harness (2), feed out and remove.







NOTE:
Check stored fault messages.
Delete fault memory.

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