72 12 040 Removing and installing/replacing left or right AFPS1 head airbag (version without glass tilt sunroof)

WARNING: Read and comply with Safety regulations for handling airbag modules and pyrotechnical belt tensioners.
Incorrect handling can activate head airbag and cause injury.
The AHPS head airbag must be replaced if it is damaged during removal or installation.
A damaged AHPS head airbag exhibits an impaired protective function and in extreme cases loses its protective function altogether.

Necessary preliminary tasks:

Disconnect battery negative lead . See 61 00 ... BATTERY .
Follow instructions for unlocking and locking airbag plug connections. See Unlocking/locking airbag plug connections .
Remove roofliner . See 44 ROOF TRIM PANEL .

Fig 1: Identifying Screws And Holder

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Release all screws (1) on holder (2).

Tightening torque 72 12 03AZ.

Release rear screw.

Tightening torque 72 12 04AZ.

Remove rear AHPS1.

Fig 2: Locating Screws

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Release front screws (1 and 2).

Tightening torques:

Screw 1 72 12 04AZ
Screw 2 72 12 06AZ

Carefully feed gas generator out of guides towards rear, unlocking and disconnecting plug (3) in the process.

Remove gas generator completely.

Fig 3: Identifying Plug And Screw

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NOTE: View of retaining screw with anchor fitting of AHPS1 head airbag:

Anchor fitting, AHPS1 head airbag
Lock washer
Retaining screw

Fig 4: Identifying Retaining Screw And Lock Washer
Courtesy of BMW OF NORTH AMERICA, INC.