Audi Q7: Passenger Occupant Detection System Deactivation Additional Safety Precautions, Market-Specific
Caution
- After each repair to the front passenger seat where the seat or backrest cover was "removed", a basic setting of the passenger occupant detection system control module must be performed using the Vehicle Diagnostic Tester.
- Do not bend the passenger occupant detection system mat.
- A leaking mat must be replaced (service kit).
- Do not bend the passenger occupant detection system pressure hose.
- Make sure the components of the passenger occupant detection system do not fall onto hard surfaces, do not come into contact with grease and do not risk damage by resting against sharp objects.
- The mat, the fleece and various covers must be fitted to be free of folds.
- Make sure the seat padding and cover are positioned correctly when installing.
- Replace all upholstery clips or clips and make sure they are positioned correctly on the seat.
- The system basic setting can be performed at temperatures between 0 ºC and 40 ºC (32º and 104 ºF) with 8.R and 9.* airbags. The temperature must be between 5º and 35 ºC (41º and 95 ºF) with 10.* airbags.
- Make sure that no objects are placed on seat when performing basic setting.
- The use of additional seat cushions such as pillows impairs the function of the passenger occupant detection system and the operation of the airbag system.
Passenger Occupant Detection System Deactivation After a Collision, Market-Specific
- Each time an airbag or passenger belt tensioner deploys, a basic setting must be performed on the passenger occupant detection system control module using the Vehicle Diagnostic Tester.
- If the seat rails and/or seat pan is replaced after an accident due to deformations resulting from a crash, the passenger occupant detection system must be replaced using the "passenger occupant detection system service kit". Perform a "basic setting" on the passenger occupant detection system control module using the Vehicle Diagnostic Tester.
Restraint System Pyrotechnical, Electric and Mechanical Components, Replacing After a Collision
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
The Airbag Control Module must be Replaced:
- If the display "Control module faulty" appears after a Diagnostic Trouble Code (DTC) memory check
- After three side, driver, and passenger airbag or belt tensioner deployments
- If housing is damaged
- If there is deformation in the tunnel in a 200 mm circumference around the control module
Always Replace the Following:
- All deployed airbag units
Also with Front Passenger Airbag Deployment:
- Instrument Panel
- Deformed front passenger module supports (cannot be reformed)
- All sensors for front airbag 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 sensors for front airbag 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.
- Also check if the "Resistance too large" error is stored for the belt tensioner and/or belt force limiter. Deployed belt tensioners and/or belt force limiters must fulfill both conditions. "Requirement: the airbag control module was not replaced yet".
Note- The "Resistance too large" 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 → Chapter "Airbag, Belt Tensioner and Battery Cut-Out Units, Storing, Transporting and Disposing (Pyrotechnic Components)".
- Also check the seat belts. Refer to → Chapter "Seat Belts, Checking".
- 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, affix stickers (only tear-off strips) to the registration card and return the registration card to the relevant Sales Center or to the Importer for registration.
Airbag Fasteners, Checking After a Collision
All damaged fastening elements must always be replaced. Reshaping the components or "making them fit" is not permitted.
The following components must be checked after every airbag deployment.
With Front Passenger Airbag Deployment:
- Instrument panel central tube; front passenger airbag supports and passenger airbag unit must be installed free of tension. Otherwise the central tube is to be replaced.
- Check the glove compartment for damage. Replace the glove compartment if damaged.
With Driver Airbag Deployment:
- Steering wheel: Remove the steering wheel and place it with the steering wheel rim on a flat surface. The entire steering wheel rim must rest on the surface. Otherwise the steering wheel should be replaced.
- Check steering wheel for smoke residue. If smoke residue is present, replace the steering wheel.
Collision without Airbag Deployment
- If the Airbag Indicator Lamp -K75- does not indicate a malfunction, then it is not necessary to replace the pyrotechnic components. Seat belts must be checked separately.
