12 13 511 Replacing ignition coils (N52, N52K, N51)

WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. 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 ignition coil cover

Unlock plug retainer of ignition coil (1) and disconnect plug.

Pull ignition coil (1) up and out.

This procedure is applicable to all ignition coils.

Fig 1: Pulling Out Ignition Coil

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Installation:

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

Fig 2: Rubber Seal Of Ignition Coil

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Installation:

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

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

Fig 3: Closing Plug Retainer

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Installation:

The plug retainer must snap into place without great effort.

Fig 4: Plug Retainer

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NOTE: Now clear the fault memory.