Removing airbag unit of the steering wheel or sports steering wheel
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 .
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 .
NOTE:
TECHNICAL INFORMATION
After replacing the airbag unit (M Sport steering wheel) or possibly converting the standard steering wheel and airbag unit on the M Sport steering wheel, a software update or a programming/coding via ISTA must be performed.
After replacing the airbag unit (M Sport steering wheel) or possibly converting the standard steering wheel and airbag unit on the M Sport steering wheel, a software update or a programming/coding via ISTA must be performed.
NOTE:
TECHNICAL INFORMATION
The steering wheel and horn plate must be replaced if the airbag unit has been deployed.
Check all steering wheel attachments (such as switches, cover, shift paddles, wiring harness) for damage and replace if necessary!
For additional information see: PROCEDURE AFTER AIRBAG DEPLOYMENT AS RESULT OF AN ACCIDENT .
The steering wheel and horn plate must be replaced if the airbag unit has been deployed.
Check all steering wheel attachments (such as switches, cover, shift paddles, wiring harness) for damage and replace if necessary!
For additional information see: PROCEDURE AFTER AIRBAG DEPLOYMENT AS RESULT OF AN ACCIDENT .
Preliminary work
- Refer to DEACTIVATING THE 48 V ELECTRICAL SYSTEM .
- Refer to DISCONNECTING ALL BATTERY GROUND LEADS .
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 .
NOTE:
RISK OF DAMAGE
Damage to the steering wheel.
Incorrect handling of the tool may damage the steering wheel.
Damage to the steering wheel.
Incorrect handling of the tool may damage the steering wheel.
- Make sure the position (angle and inclination) of the tool is correct.
- When unlocking, do not use "levering" action. Instead, press in the Torx screwdriver toward the center of steering wheel only.
- Insert the Torx screwdriver T25 (1) diagonally upwards in the hidden opening on the rear of the steering wheel until a springing kind of resistance can be felt.
NOTE:
To provide a better overview: Schematic diagram with airbag unit removed.
- Push in Torx screwdriver T25 (1) diagonally upwards in arrow direction and press the wire spring towards middle of the steering wheel to unlock the airbag unit.
- Repeat procedure on the left side and carefully lift the airbag unit.
- Disconnect the plug connection (1) and remove the airbag unit.