12 13 511 Replacing ignition coils (N63)

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Necessary preliminary tasks:

Read out fault memory of DME control unit.
Check stored fault messages
Switch off ignition
Remove intake filter housing , see 13 71 030 REMOVING AND INSTALLING BOTH INTAKE FILTER HOUSINGS (N63) .

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 catch (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 Ignition Coil And Unlock Plug Catch

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

Fig 2: Identifying Rubber Seal Of Ignition Coil

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

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

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

The plug catch must snap into place without great effort.

Fig 3: Identifying Push Plug And Plug Catch

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: Now clear the fault memory.