12 13 511 Replacing Spark Plugs (N54, N53)

Necessary preliminary tasks: 

• Read out fault memory of DME control unit.
• Check stored fault messages
• Switch off ignition
• Remove acoustic cover

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.