Component Tests and General Diagnostics

Checking Ignition Coils (M60, M62, S62)


CAUTION!
Switch off ignition.







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







Acoustic cover version 2:
(Acoustic cover with press-stud fastener)
Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly. Remove acoustic cover 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.







Acoustic cover version 3 (E53):
Turn fasteners on acoustic cover 90 1|C counterclockwise.
Remove acoustic cover.

M60, M62:







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







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

S62:







Release cap nuts (1) on left and right.
Remove cover (2) on ignition coils on left and right.

M60, M62, S62:







Use adapter set 12 7 040 to check ignition coils.


NOTE: Attach special tool 12 7 045 to single adapter 12 7 041.







Switch off ignition!
Attach single adapters 12 7 041 to ignition coils of left and right cylinder banks.







Connect single adapters 12 7 041 with connecting cable set 12 7 043.


NOTE: Pass long connecting cable over engine.