Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2021 BMW X4 M40iFACTORY OEM SERVICE PROCEDURE
Restraints -- Repair (G02)
- 72 00 General Information
- 72 11 Seat Belts
- Automatic seat belt checklist
- Checking automatic safety belt
- Checklist for front seat
- Check the 3-point automatic-reel belt
- 72 11 250 Removing and installing/replacing upper seat belt at left front
- 72 11 251 Removing and installing/replacing front right upper seat belt
- 72 11 255 Removing and installing/replacing lower strap, left front
- 72 11 256 Removing and installing/replacing lower strap, right front
- 72 11 380 Removing and installing/replacing rear left upper seat belt
- 72 11 381 Removing and installing/replacing right rear upper seat belt
- 72 11 382 Removing and installing/replacing upper seat belt, rear center
- 72 11 390 Removing and installing/replacing lower strap, rear left
- 72 11 391 Removing and installing/replacing lower strap, right rear
- 72 11 392 Removing and installing/replacing rear center lower strap lining
- 72 12 Airbags
- Notes on scrapping vehicles with gas generators (airbag system)
- Procedure after airbag deployment as result of an accident
- Unlocking/locking airbag plug connections
- 72 12 000 Removing and installing or replacing airbag module on passenger's side
- 72 12 004 Removing and installing/replacing airbag module for driver's knee protection
- 72 12 006 Removing and installing/replacing airbag module for passenger knee protection
- 72 12 050 Removing and installing/replacing side airbag for left or right front seat
- 72 12 060 Removing and installing or replacing left or right head airbag
- 72 12 061 Removing and installing or replacing left or right head airbag
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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