12 13 511 Replacing ignition coils (N12)
WARNING: This page is about a different variant/trim than selected.
Necessary preliminary tasks:
- Read out fault memory of DME control unit.
- Check stored fault messages
- Switch off ignition
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! The silicone tube of the spark plug connector is coated with talc to reduce the pulling forces. The silicone tube must NOT be oiled or greased. This would greatly reduce the durability of the silicone material, which can lead to a malfunction of the ignition coil.
Release bolts and remove cover (1).
Unlock plug retainer (1) of ignition coil (2) and disconnect plug.
Pull ignition coil (2) up and out.
This procedure is applicable to all ignition coils.
Installation:
Check that rubber seal of ignition coil (1) is correctly seated.
Installation:
Push plug (1) with plug retainer (2) open onto ignition coil.
Carefully close plug retainer (2) in direction of arrow.
The plug retainer must snap into place without great effort.
NOTE:
Now clear the fault memory.