72 12 040 Removing And Installing/Replacing Left Or Right AHPS1 Head Airbag

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2008 BMW 750i, 2008 BMW 750Li, 2007 BMW 750i, 2007 BMW 750Li, and 2006 BMW 750i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Observe safety precautions for handling airbag modules and pyrotechnical seat belt tensioners.

See SAFETY REGULATIONS FOR HANDLING COMPONENTS WITH GAS GENERATORS and NOTES ON SCRAPPING VEHICLES WITH GAS GENERATORS (AIRBAG SYSTEM) .

Incorrect handling can activate head airbag and cause injury.

Follow instructions for disconnecting and connecting battery.

Disconnect battery negative lead from battery.

Remove headliner. See REMOVING AND INSTALLING/REPLACING HEADLINER (WITHOUT SLIDE/TILT SUNROOF) or REMOVING AND INSTALLING / REPLACING HEADLINER (WITH SLIDE/TILT SUNROOF) .

Fig 1: Locating Left Or Right AHPS1 Head Airbag

Courtesy of BMW OF NORTH AMERICA, INC.

Release screws on holder (2).

Installation:

Tightening torque: 72 12 03AZ . See AIRBAG MODULES for specs.

Pull holder (2) out of body.

NOTE:

Retainers on holder may break off. These retainers serve as an installation aid during series production and are not important for repairs.

Release screws (3).

Installation:

Tightening torque: 72 12 04AZ . See AIRBAG MODULES for specs.

Remove AHPS1 (1).

Detach felt strip (1) from gas generator.

Installation:

Replace felt strip (1) in event of damage or poor adhesion.

Unlock plug (2) on gas generator of AHPS1 head airbag and detach.

Fig 2: Identifying Felt Strip And Plug

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NOTE:

To release nut (1), use joint socket 10 A/F, drive 1/4". Insert joint socket from below between gas generator and instrument panel trim and fit on nut (1).

Fig 3: Identifying Instrument Panel Trim And Fit Nut

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NOTE:

Nuts may fall out slightly after being released. If necessary, place some butyl in socket.

Release nuts (1 and 2).

Pull gas generator (3) out of mounting.

Fig 4: Identifying Gas Generator And Nut

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Installation:

Replace self-locking nuts.

Place nut (1) on threaded pin and turn twice.

Insert gas generator into mounting (2).

Fig 5: Identifying Gas Generator Into Mounting

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Installation:

Install gas generator (2) with slotted section of holder below nut (1) on threaded pin.

Turn gas generator (2) in direction of arrow until holder with opening (3) slides over threaded pin.

Screw in second nut partially.

Set a tightening torque of 8 Nm on torque wrench.

Tighten down both nuts.

NOTE:

Nut (1) is tightened to a lower torque on account of joint socket.

However, this torque is sufficient to secure the gas generator firmly.

If necessary, prime scratches made on body.

Fig 6: Turning Gas Generator Holder With Opening Slides

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE:

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

Anchor fitting, AHPS1 head airbag
Lock washer
Retaining screw

Fig 7: Identifying AHPS1 Head Airbag Lock Washer And Retaining Screw

Courtesy of BMW OF NORTH AMERICA, INC.