Ignition Coil: Service and Repair

Replacing Ignition Coil (M60, M62)

Switch off ignition.







Version 1:
(Acoustic cover screwed down)
Remove sealing caps (1).
Release nuts (2).
Remove acoustic cover.







Version 2:
Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly. Acoustic cover can be unlocked when all four press-stud fasteners have been unlocked.

Installation:
Position acoustic cover and press downwards until press-stud fasteners (1... 4) are heard to engage.







Version 3 (E53):
Turn fasteners on acoustic cover 90° counterclockwise.
Remove acoustic cover.







Remove sealing caps on covers of ignition coils.
Release nuts.
Remove covers on ignition coils.







Installation:
Check profile seal (1) for damage and correct seating, replace if necessary.







Disconnect plug connections on ignition coils.







Release screw connections on ignition coils.
Remove ignition coils.







E31, E38, E39:
Screw grounding straps to ignition coils of cylinders 3 and 6.

E53:
Screw thin grounding cable (1) to ignition coil of cylinder 2 or 7.
Screw thick grounding cable (2) to ignition coil of cylinder 3 or 7.







NOTE:
Interrogate fault memory of DME control unit.
Check stored fault messages.
Rectify faults.
Now clear the fault memory.