BMW 1989-1995 525i Service Manual page 436

721 -2
A IRBAG SYSTEM (SRS)
AIRBAG I, AIRBAG II
The airbag system consists of the following components: an
electronic control/monitoring module. an indicator light in the
instrument panel. and an inflatable airbag equipped with a gas
generator in the steering wheel. and where applicable. an in-
flatable airbag equipped with a gas generator in the passenger
side of the instrument panel. In addition to the airbags. the ve-
hicle is equipped with a knee bar(s) for extra protection. Fig. 1
shows Airbag I system components.
Driver's side airbag, removing and installing
1. Disconnect negative (- ) battery cable and cover nega-
tive terminal with an insulating material.
WARN/NG-
On cars with Airbag II:
tt
tne Airbag system has de-
tected a fault (SRS indicator illuminated). a wa ifing
period of at least ten minutes must be observed be -
fore removing the airbag from the steering wheel.
This will allow the system capacitor to discharge.
reducing the possibility of a trigger pulse being gen-
erated to the airbag.
2. Remove lower steering column trim mounting screws
and remove the lower trim.
3. Remove orange SRS connector from its holder and
carefully separate connector. See Fig. 2.
Airbag I
1. Driver's side airbag unit
2. Airbag control module/diagnosing unit
3. Knee protection
4. SRS indicator in instrument cluster
5. Crash sensors
Fig . 1. Airbag I system components.
AIRBAG I. AlRBAG 1/
OOIlB9!
Fig. 2. Orange SRS connector below steering column (arrow ).
4. Working behind steering wheel . completely loosen Torx
screws (T30 or T27) while holding airbag in place. See
Fig. 3. Support airbag unit to prevent it from falling out.
5. Carefully lift airbag unit off steering wheel and discon -
nect orange harness connector from rear of airbag unit.
Store airbag in safe place . See Fig. 4.
6. Install steering wheel as described in 320 Steering
and Wheel Alignment.
3
00 ll B51