12 13 511 Replacing ignition coil (M60, M62): E53:

WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

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.

Fig 1: Screwing Grounding Straps To Ignition Coils Of Cylinders 3 And 6

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NOTE: Interrogate fault memory of DME control unit.

Check stored fault messages.

Rectify faults.

Now clear the fault memory.