Installing the right knee airbag
WARNING: This page is about a different car, the 2025 BMW M4, 2024 BMW M4, 2023 BMW M4, 2022 BMW M4, and 2021 BMW M4. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Airbag unit.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- Before performing any work on the airbag, always disconnect the battery ground lead from the battery.
- Airbag unit may only be set down with the cushion (airbag itself) facing upwards.
- For additional information see: SAFETY REGULATIONS FOR HANDLING COMPONENTS WITH GAS GENERATORS .
WARNING:
Pyrotechnic components.
Danger! Immobilization period-threatening injuries!
Danger! Immobilization period-threatening injuries!
- All work on pyrotechnic parts may be carried out by technically experienced and appropriately trained personnel only.
- Replace any damaged part or ones that have been dropped.
- For additional information see: SAFETY REGULATIONS FOR HANDLING COMPONENTS WITH GAS GENERATORS
NOTE:
Description is for left component only. Procedure on the right side is identical.
- Correctly position the knee airbag (2).
- Tighten nuts (1).
TIGHTENING TORQUES SPECIFICATION
| Knee airbag to support structure | ||
| Nut | Tightening torque | 8 Nm |
- Connect connectors (1) and lock.
Follow-up work
- Refer to CONNECTING ALL BATTERY GROUND LEADS .
- Refer to INSTALLING RIGHT FOOTWELL TRIM .
- Refer to ACTIVATING THE 48 V ELECTRICAL SYSTEM .