Another airbag light problem

[Chriseybaby]

Hi, I have a strange problem with my 02 A4. Ive searched but cant find anyone with the same symptoms.

The light came on and is on for 80% of the time. Occassionally it will go off and stay off for the duration of the journey, however if I turn the ignition off and on again it comes back on!

I had someone try to diagnose it, but he said he couldnt talk to the Airbag module so I needed one of those costing around £600. However after telling him that it does go off sometimes he wasnt too sure.

Anyone got any ideas what it could be?

[kenney]

The fault may be with his diagnostic tool,that he is unable to enter the unit,i suggest you get someone else to read a fault code for you.before spending £600

[andyroo82]

Mine became intermittant for a few days and hasnt been on since. I fiddled with wires under the drivers seat as I had a drinks bottle end up underneath so hoping it was something mystical but would be interested to see what you find

[Chriseybaby]

I have had a little play under the seats, but will play some more just incase. I can just see the airbags exploding.

[Zeb]

I too have the same problem I was told that I need to replace the Airbag sensor which will cost around £70 or £80 from an Indi!!

[benjie]

Definately get it plugged into a dealer diagnostic system (expensive) or get someone with vcds to run a scan for you... then you'll know for sure. There is a common problem in the VAG range with the wiring under the front seats becoming worn over time, but there's no way to know for sure without a scan.

Don't worry about airbags going off, when the airbag warning is on in the dash, all airbags are automatically disabled for safety's sake - don't want them going off whilst someone is driving.

[Chriseybaby]

Thanks for your help, its booked in to the local indi so fingers crossed its not gonna be too bad

Benjie, can I ask where you got you rs4 arb from and how much it cost. I need to replace mine and have seen people on here saying it costs around £80 but cannot find it for less than £200.

[JohnyIre]

I had a similar issue. Was on and off. Sacn said front crash sensor I think, but it went off, and has stayed off since. One bit of good luck!

[Chriseybaby]

Well im glad I took your advice and got a second opinion. It turns out its a crash sensor, still gonna cost over £100, but not as much as the first guy scared me with