Got an Audi A4 B6 Avant...124k miles....
Had a problem with drivers side, side airbag not long after I got it... yellow connector was cut out and professional job on rejoining spliced wires together completed, no further issues.
Same happened on passenger side, same error, when checked, previous owner had made a complete hash of the connector cut out (as per TSB article) so my excellent garage replaced the whole wire with VAG spec yellow wire and brand new VAG spec connectors.
No errors seen for about 5 months....until Christmas day, up popped the Airbag light!
Upon checking, the same error has come up that I had with the passenger side:
Controller: 8E0 959 655 J
Component: Airbag 8.4EP 1002
Shop #: WSC 06325
1 Fault Found:
01218 - Side Airbag Igniter: Passenger Side (N200)
001 - Upper Limit Exceeded
Now...some people say that the Airbag in the Seat could potentially have gone faulty. I clear the light and within about a day it's back on again. I think I have narrowed it down to when there is a passenger sitting on the seat, although clearing the light the other day and bouncing on the seat and wiggling the wires under the seat didn't make it come on.
Are their any diagnostics I can do at all to find out what might be causing the issue? Garage quote to replace the Airbag in the seat with strip down is £350 (£250 for part (trade) and £100 labour)
Any help - or anyone had the same issue appreciated!