The Airbag Control Module With Airbag Generation 9.*, 10.* And 8.R. Can Be Used For Up To Two Deployments Of The Thorax, Driver/Front Passenger Airbag And/Or Seat Belt TENSIONERS.
The airbag control module with airbag generation 8.* >>not 8.R<< can be used for up to two deployments of the thorax airbags and/or seat belt tensioners.
THE AIRBAG CONTROL MODULE WITH AIRBAG GENERATION 9.*, 10.* AND 8.R. CAN BE USED FOR UP TO TWO DEPLOYMENTS OF THE THORAX, DRIVER/FRONT PASSENGER AIRBAG AND/OR SEAT BELT TENSIONERS.
After the third deployment, the malfunction indicator "Control module faulty" will turn on.
The airbag control module must be replaced:
- For driver and passenger airbag deployment "but not for airbag generation 9.*, 10.* and 8.R". Refer to THE AIRBAG CONTROL MODULE WITH AIRBAG GENERATION 9.*, 10.* AND 8.R. CAN BE USED FOR UP TO TWO DEPLOYMENTS OF THE THORAX, DRIVER/FRONT PASSENGER AIRBAG AND/OR SEAT BELT TENSIONERS. .
- After three deployments of the thorax airbag, driver airbag, front passenger airbag or belt tensioners
- If Housing Is Damaged
- If There Is Deformation On The Tunnel Within A 200 Mm Radius Around The Control Module
Always Replace The Following:
- All deployed airbag units
- The Battery Interrupt Igniter -N253-
Also With Front Passenger Airbag Deployment:
- Instrument Panel
- Deformed front passenger airbag supports (cannot be reformed)
- All front airbag sensors on the front end
- Remaining transverse acceleration sensors if the mounting points are deformed in the sensor area
Also With Driver Airbag Deployment:
- Return spring with slip ring
- All front airbag sensors on the front end
- Remaining transverse acceleration sensors if the mounting points are deformed in the sensor area
Also With Thorax Airbag Deployment:
- Pressure sensors on the deployed side
- Transverse acceleration sensors on the deployed side
- Cover
- Cushion
- With a folding rear seat backrest: side cushion (if equipped)
- Remaining transverse acceleration sensors if the mounting points are deformed in the sensor area
Also:
- All automatic belt retractors with deployed belt tensioners.
- All automatic belt retractors with deployed seat belt force limiters (depending on vehicle equipment)
- Seat belt latches for all automatic belt retractors with deployed seat belt tensioners with the belt on
- Seat belt height adjuster (manual and power) for all automatic belt retractors with deployed seat belt tensioners with the belt on
-- Connect the Vehicle Diagnostic Tester if there is a chance the belt tensioner and/or seat belt force limiter deployed.
-- In >>Guided Fault Finding<< under "15 - Airbag", check whether there is a crash entry in the airbag control module.
-- Check if the "Resistance too large" error is also stored for the belt tensioner and/or belt force limiter. Deployed belt tensioners and/or belt force limiters must fulfill both conditions. "Prerequisite: the airbag control module has not been replaced yet".
The "Resistance too high" error may also be stored if there is an open circuit. Then there is normally no crash entry.
Depending on the crash, the belt tensioner may have deployed while the belt force limiter did >>NOT<<. In that case, follow the disposal information for pyrotechnic components. Refer to AIRBAG, BELT TENSIONER AND BATTERY CUT-OUT UNITS, STORING, TRANSPORTING AND DISPOSING (PYROTECHNIC COMPONENTS) .
Also check the seat belts. Refer to SEAT BELTS, CHECKING .
Deployed seat belt force limiters can be recognized by the following characteristics:
The pin -1- and tab -3- are protruding out of the belt force limiter housing on the automatic belt retractor.
The tab -2- is no longer vertical but is diagonal toward the outside.
-- If parts of the seat belt system are removed due to an accident, replace the belt system bolts.
-- If needed (visual inspection), the following must also be replaced: all faulty components.
-- After replacing the airbag units or the control module, attach stickers (only tear-off strips) to the registration card and send the registration card to the appropriate distribution center or to the importer for registration.