OEM Restraints System Part Replacement Search


2021 BMW 3-Series Sedan

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DISABLE PROCEDURE AND TIME (Always Check Service Manual)

• Inspection, testing and installation work may only be carried out by expert trained personnel in BMW Service.
• Work on components of the airbag system should only ever be carried out with the battery disconnected, the negative terminal post covered and the plug connection of the cable leading to the gas generator disconnected. If only the battery is disconnected, the following prescribed waiting period must be observed without fail:

1 minute.

• When carrying out straightening and welding work with an electric welder:
• Disconnect battery
• Cover negative terminal (post)

REV: 02/2021

PARTS THAT MUST BE REPLACED FOLLOWING A DEPLOYMENT

Replace the following components after airbag deployment:

• Steering wheel, if Driver airbag module deployed
• Driver airbag module: [AIRBAG, STEERING WHEEL; AIRBAG, KNEE BOLSTER], if Deployed
• Passenger airbag module: [AIRBAG,INSTRUMENT PNL; AIRBAG, KNEE BOLSTER], if Deployed
• Replace airbag module and seat cover with upholstery [AIRBAG, FRONT SEAT], if Deployed
• Replace gas generator, active head restraint system [UNIT,ACTIVE HEADREST]. If the severity of the impact has not caused any other damage to the seat, only the triggered gas generator needs to be replaced
• Roof Airbag module [AIRBAG, ROOF], if Deployed

PARTS THAT MUST BE INSPECTED AND REPLACED IF DAMAGED

Check and/or replace following components after airbag deployment:

• Sensor B-pillar (left/right) [AIRBAG SENSOR,SIDE]
• Sensor front door (left/right) [AIRBAG SENSOR,FRT DOOR]
• Sensor seat, Driver-/passenger's side [AIRBAG SENSOR,PASS SEAT]
• Airbag control unit, vehicle interior [MODULE,AIRBAG CONTROL]
• Front sensor (engine compartment) [AIRBAG SENSOR,FRONT]

Cables and connectors:
• Check cables and connectors for damage, replace if necessary

Seat belt system:
• Automatic reel
• Seat belt tensioner
• Seat belt height adjustment
• Anchor fitting tensioner
• Seat belt buckle

Seats:
• Seat
• Airbag module [AIRBAG,FRONT SEAT]
• Active head restraint

Driver's airbag:
• Airbag module [AIRBAG,STEERING WHEEL]
• Steering Wheel
• Steering column

Front passenger airbag:
• Airbag module [AIRBAG,INSTRUMENT PNL]
• Dashboard trim panel (must be replaced!)
• Supporting tube (if damaged)

Side airbag, front:
• Airbag module
• Seat

Head airbag:
• Airbag module [AIRBAG, ROOF]
• A-pillar trim panel
• Roofliner
• Trim, B-pillar
• Trim, C-pillar
• Connection/mounting (on side frame)

Knee airbag:
• Trim panels (driver's side)
• Lower section of glove box
• Knee protection (driver's and front passenger sides) [AIRBAG,KNEE BOLSTER]

Passive knee protection
•Trim panel (driver's side)
•Glove compartment incl. knee protection (passenger's side)
[AIRBAG,KNEE BOLSTER]

Important!
Only repair those cables which show visible signs of damage. In the event of visible damage, make sure there is only one cable repair in effect after the repair work. If no visible damage can be identified, the entire cable must be replaced. When carrying out repairs to the airbag wiring harness, you must use the spare parts offered in the Electronic Parts Catalogue (EPC).

Additional Information


*This matrix does not currently contain all production vehicles sold in the United States. Please refer back to this page frequently to ensure the most up-to-date information. The following charts were developed in cooperation with AudaExplore, a Solera company. The contents are based on the information available at the time of publication. To ensure that the most recent information is used, always refer to the vehicle maker's technical information before working with airbags and other passive restraint systems.


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