12 13 511 Replacing ignition coils (N54, N53, N43)

WARNING: This page is about a different car, the 2010 BMW X6, 2009 BMW X6, and 2008 BMW X6. However, it is still accessible from the selected car via links, so may be relevant.

Necessary preliminary tasks:

Read out fault memory of DME control unit.
Check stored fault messages
Switch off ignition
Remove acoustic cover , see 11 00 REMOVING AND INSTALLING/REPLACING IGNITION COIL COVER (N54) .
If necessary, remove acoustic cover at rear , see 11 00 REMOVING AND INSTALLING/REPLACING REAR IGNITION COIL COVER (N54) .
E71: Remove clean air pipe , see 13 71 150 REMOVING CLEAN AIR PIPE (N54) .

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

Unlock plug fastener (1) of ignition coil (2) and disconnect plug.

Pull ignition coil (2) up and out.

This procedure is applicable to all ignition coils.

Fig 1: Identifying Plug Fastener And Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 2: Checking Rubber Seal Of Ignition Coil Is Correctly Seated

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Push plug (1) with plug fastener (2) open onto ignition coil.

Carefully close plug fastener (2) in direction of arrow.

The plug fastener must snap into place without great effort.

Fig 3: Pushing Plug With Plug Fastener Open Onto Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Now clear the fault memory.