WARNING: Read and comply with safety regulations for handling airbag modules and pyrotechnical belt tensioners.
IMPORTANT: An airbag plug connection must be replaced if it is damaged.
Sourcing reference for airbag repair instructions (with plug connection), refer to BMW Parts Service.
Following versions of plug connections on airbag module/gas generator are possible:
Airbag plug connection on gas generator/airbag module offset by 90º:
There are two ways of unlocking this airbag plug connection on the gas generator/airbag module:
Method 1:
Simultaneously pull cover (1) upwards at lugs on left and right (2).
Fig. 18: Pulling Cover Upwards Lugs On Left And Right
Method 2:
Insert a narrow screwdriver into recess (1) in housing (2).
Carefully pry cover (3) off (4).
Fig. 19: Prying Off Cover
Cover (1) is not positioned higher than housing (2).
The airbag plug connection is unlocked and can now be detached from the gas generator/airbag module.
Fig. 20: Identifying Airbag Plug Connection
Installation:
After attaching airbag plug connection to gas generator/airbag module, press cover (1) downwards until it rests flat on housing.
Check that it catches properly.
Fig. 21: Attaching Airbag Plug Connection
Airbag plug connection on gas generator/airbag module is straight (2 versions)
Version 1:
Press locking/unlocking plate (1) at edge (4).
Locking/unlocking plate (1) snaps upwards at opposite edge (3) and releases detent lug (2).
Fig. 22: Pressing Locking/Unlocking Plate
The airbag plug connection is unlocked and can now be detached from the gas generator/airbag module.
Fig. 23: Identifying Generator/Airbag Module
Installation:
After attaching airbag plug connection to gas generator/airbag module, check whether detent lug (2) is visible in opening of locking/unlocking plate (1).
Only if the detent lug (2) is visible will the airbag plug connection gas generator/airbag module be correctly engaged.
Fig. 24: Identifying Detent Lug And Locking/Unlocking Plate
Version 2:
Press locking/unlocking plate (1) on edge (3) and pull plug (2) out of plug housing (4).
Installation:
Only if the detent lug is visible in opening (5) will the gas generator/airbag module plug connection be correctly engaged.
Fig. 25: Pressing Locking/Unlocking Plate
Version 3:
Press lock button (1) and pull out plug (2) up to initial engagement position.
Detach plug (2) from firing pellet.
Installation:
Insert plug connection in initial engagement position in gas generator/airbag module and engage in final engagement position.
Fig. 26: Pressing Lock Button And Pulling Out Plug
Illustration of version 3 with gas generator :
Fig. 27: Identifying Lock Button And Gas Generator
Version 4 - Crash-active head restraint:
Press locking clip at edge and disconnect plug (1).
Installation:
Check for correct engagement.
Fig. 28: Pressing Locking Clip