12 51 100 Replacing wiring harness section for ignition coil (N62)
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
- Switch off ignition
- Remove right fresh air duct, refer to 64 31 053 REMOVING AND INSTALLING OR REPLACING FRESH AIR DUCT .
Installation:
Make sure seal of wiring harness section for ignition coils is correctly installed in electronics box.
Unlock stopper (1) in direction of arrow.
Unfasten screws.
Lift out cover (2).
PRELIMINARY TASKS
| Work step | Note: |
|---|---|
| Remove acoustic cover | - |
| Unlock and detach plug connections on DME control unit. | Only plug connections of wiring harness section for ignition coils |
| Remove ignition coil cover | This work step is described in the section "Replacing ignition coil". |
| Detach grounding cable from cylinder head cover. | - |
| Unclip cable duct. | - |
| Unlock plug connections on ignition coils and disconnect. | Do not remove ignition coils This work step is described in the section "Replacing ignition coil". |
| Remove engine vent hose | - |
| Unclip and remove wiring harness. | - |
NOTE:
Read out fault memory of DME control unit. Check stored fault messages. Now clear the fault memory.