Ignition Coil: Service and Repair

12 13 511 Replace ignition coils (N54, N54T, N53, N43)







Necessary preliminary tasks:
- Read out the fault memory of the DME control unit.
- Check stored fault messages and process procedure.
- Switch off ignition.
- Remove acoustic cover
- E71 only:
Remove acoustic cover at rear.
- E71 only:
Remove clean air pipe.







IMPORTANT:
Ignition coils must not be contaminated by fuel.
The resistance of the silicone material is reduced significantly by contact with fuel, which may cause the ignition coil to fail.







Unlock connector fastener (1) of ignition coil (2) and disconnect connector.
Pull ignition coil (2) up and out.
This procedure is applicable to all ignition coils.







Installation note:
Check that rubber seal of ignition coil (1) is correctly seated.







Installation note:
Push connector (1) with connector fastener (2) open onto ignition coil.
Carefully close connector fastener (2) in direction of arrow.
The connector fastener must snap into place without great effort.







NOTE: Delete fault memory.