Version with ignition coil block:

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

Raise cover on ignition coil block slightly and fit special tool 12 7 0.46.

Connect special tool 12 7 046 to adapter cable 12 7 042 and then to Tester.

Fig 1: Connecting Special Tool To Adapter Cable And To Tester

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The adapter cable 12 7 042 is located in the case of the adapter kit 12 7 040.

Follow instructions for troubleshooting with aid of adapter kit:

Normal oscillogram MG12
Ignition coil comparison MG12
Ignition coil fault MG12
Spark plug fault MG12
Further fault patterns MG12
Fault at injection system MG12