A8 Quattro Sedan V8-4.2L (BVJ) (2008)
Repairs and Inspections Required After a Collision: Procedures
Airbag Units, Replacing After an Accident
Airbag Units, Replacing after an Accident
‹› With the airbag generation 8.* not 8.R, the airbag control module can be used for up to two deployments of side/curtain airbags and/or belt
tensioners.
‹› With the airbag generation 9.* and 8.R, the airbag control module can be used for up to two deployments of driver's/passenger's side/curtain
airbags and/or belt tensioners.
‹› After the third deployment, the malfunction display "Control module defect" appears.
Airbag control module must be replaced:
‹› If driver/passenger airbag has deployed "does not apply for airbag generation 9.* and 8.R".
‹› After three deployments of driver's/passenger's side/curtain airbags or belt tensioners
‹› if housing is damaged
‹› if there is deformation on tunnel in 200 mm circumference around control module
Always replace the following:
‹› all deployed airbag units
‹› Battery Switch-off Relay - J655- or Battery Interrupt Igniter -N253- (depending on vehicle equipment).
Also with passenger airbag deployment:
‹› Instrument Panel
‹› deformed passenger module supports (cannot be reformed)
‹› both front airbag sensors on front end
‹› Remaining cross acceleration sensors if anchorage point is deformed in sensor region
Also with driver airbag deployment:
‹› Coil connector with slip ring
‹› both front airbag sensors on front end
‹› Remaining cross acceleration sensors if anchorage point is deformed in sensor region
Also with side airbag deployment:
‹› Pressure sensors on deployed side
‹› Cross acceleration sensors on deployed side
‹› Cover
‹› Upholstery
‹› with foldable rear seat backrests: Side upholstery
‹› Remaining cross acceleration sensors if anchorage point is deformed in sensor region
Also with side curtain airbag deployment:
‹› Cross acceleration sensors on deployed side