72 12 050 Removing and installing side airbag (basic seat) (coupe)

WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Observe safety regulations for handling airbag modules and pyrotechnical seat belt tensioners.

Incorrect handling can cause airbags to trigger, resulting in serious injuries.

Necessary preliminary tasks:

Disconnect battery negative lead
Remove front seat
Partially detach backrest cover

IMPORTANT: Make sure airbag wiring harness is exactly routed when installed.

Disconnect cable straps.

Release airbag wiring harness (2) from cable holders on seat mechanism.

Raise release clip (3) and pull plug (4) out of plug housing (1).

NOTE: If necessary, release yellow plug housing (1) from holder on seat mechanism.

Fig 1: Wiring Harness, Clip, Plug, Plug Housing, Mechanism And Removal Direction

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Unclip Omega cable holder (1) from seat mechanism (2).

Fig 2: Omega Cable Holder

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Unscrew nuts (1).

Installation:

Replace nuts.

For tightening torque refer to 72 12 02AZ in 72 12 AIRBAG MODULES .

Fig 3: Nuts

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IMPORTANT: Feed the wiring harness carefully through the seat and backrest mechanism as the edges of the frame can be sharp.

Pull airbag module (2) with threaded pins out of backrest frame.

Feed out airbag module (2) between padding (1) and inner bag (3).

Installation:

Pull inner bag (3) fully over airbag module (2) and threaded pins.

Insert threaded pins into backrest frame and secure with new nuts.

No inner bag material is permitted to project through the hole in the inner frame.

Install nuts and tighten down.

For tightening torque refer to 72 12 02AZ in 72 12 AIRBAG MODULES .

Fig 4: Airbag Module, Padding, Inner Airbag And Removal Direction

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Feed out wiring harness (2) of airbag module (1) through seat and backrest mechanism (3) carefully on account of sharp edges.

Installation:

Make sure wiring harness is correctly laid.

Engage backrest cover (3) in backrest frame and assemble front seat.

Fig 5: Airbag Module, Wiring Harness And Backrest Cover

Courtesy of BMW OF NORTH AMERICA, INC.