Window Regulator And Motor, Removing And Installing (4-Door Models) - BMW 1999-2005 M3 Service Manual

Door Windows
3 of 6
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Window regulator and motor,
removing and installing (4-door
models)
Sedan and Sport Wagon doors are
similar. There are two window rails in
each front window regulator, only one in
the rear. Otherwise the front and rear
regulators are similar.
Note:
BMW recommends removing the window
regulator and motor as one unit, then
separating the two on the bench.
Remove door panel as described in
-
411 Doors.
Disconnect battery negative cable
-
and remove side impact air bag, if
applicable. See
System (SRS).
WARNING!
E46 cars are fitted with
side-impact airbags in the front
doors. Some are equipped with
airbags in the rear doors as well.
When servicing the door windows
on cars with side-impact airbags,
always disconnect the negative (-)
battery cable. See
System (SRS)
procedures relating to the airbag
system.
Prior to disconnecting the
battery, read the battery
disconnection cautions given at
the front of this manual on page
viii.
721 Airbag
721 Airbag
for cautions and
2/25/2009 10:45 PM