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

WARNING: This page does not describe the selected car, but rather 14 other vehicles, including the 2008 BMW Z4, 2008 BMW 328xi, 2008 BMW 328i, 2008 BMW 323i, and 2007 BMW Z4. 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: Removing Ignition Coil

G04725649

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 2: Identifying Ignition Coil Rubber Seal

G04725650

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

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

Fig 3: Identifying Ignition Coil Plug Retainer And Plug

G04725651

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

The plug retainer must snap into place without great effort.

Fig 4: Identifying Ignition Coil Plug Retainer Position

G04725652

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Now clear the fault memory.