The brake system is one of the most important safety systems on any motor
vehicle. It is therefore essential to
act with utmost care when working on the brake system and to follow the
instructions b
IMPORTANT: Only brake test stands (analyzers) with test speeds of 2.5 -
6 km/h may be used.
Before driving onto the brake test stand (dynamic brake analyzer), switch off
the Hill Descent Control (HD
Special tools required:
34 1 260.
NOTE: The thickness of the outer brake pads can be determined without
removing the
wheels.
If necessary, move car until opening for brake pad wear indicator (bra
(cylinder bank 1 to 4)
Remove design cover, if equipped.
Unfasten acoustic cover screws. Raise acoustic cover and remove towards front.
Remove electronics box cover.
Remove electronics box seal.
These work steps are described in REPLACING CONTROL UNIT.
Remove ignition coil cover.
Remove intake