Ignition System: Tools and Equipment
Necessary Specials ToolsSecondary Ignition Test Adapter 12 7 040:
The BMW secondary voltage test adapter kit (12 7 040)
Ignition Adapter 12 7 043:
BMW special tool 12 7 043 (adapter cable)
Ignition Adapter 12 7 041 And 12 7 045:
Special tool 12 7 041 (single adapter) for fitting to the ignition coil.
NOTE: When checking the compact ignition coils (e.g. M43 Eng.) use additional special tool 12 7 045.
Ignition Adapter 12 7 042:
Special tool 12 7 042 for connecting special tool 12 7 041 to the BMW Service Tester. This adapter replaces the high tension pickup which is normally used when checking non Direct Ignition System (DIS) ignition systems.
NOTE: If a BMW Service Tester is not available, a common workshop oscilloscope with test leads may be used. Special tool 12 7 042 is then replaced by the oscilloscope measuring cable and triggering occurs externally using the induction pliers connected to the primary voltage source on the 1st cylinder.