B7 RS4 AIRBAG FAULT

[apt74]

I have recently bought a B7 RS4 cabriolet. After a week, the airbag warning light came on, it went back to the Audi garage where I bought it, they ahd it for the day and repaired it. 3 hours later, I went over a bump and the warning light is back on.
Can anyone help please?

[Andyuk911]

Never heard of that fault on a B7 RS4 .. back to the dealer

[Tame Technician]

All the normal A4's (not sure is the RS4 is the same, but I would think so) have an issue with the airbag in the seats - the side impact airbag.

Basically in the even of this failure the dealer is required by Audi to modify the wiring and in 90% of cases the fault is cured, but the remaing 10% end up needing an airbag. Warranty insist the mod is done first, which bypasses a connector which is know to have intermitatn high resistance.

Might have nothing to do with it, as there are at least 10 airbags/pirotechnic tensioners, not to mensions 6 sensors and lot of wiring that can also put that light one.

Back to the dealer.