how serious is

[MattyD.]

an airbag light, brought on by o/s/r seatbelt? looking at buying a car with this fault, dont want to buy it to find out its a masive job?

 

[Da]

Pretensioner will need replacing then the Airbag computer will need resetting/replacing. Could be expensive or could be a cheap/easy fix.

 

[MikeB]

If its down to a pretensioner it very expensive iirc

 

[SteveS Cup]

I don't think you can erase crash data held on the airbag module computer thingy!

I wouldn't buy a car that's had an impact which hasn't been fixed properly.

 

[MattyD.]

so its not as easy as gettin a good 2nd hand reel, disconnecting battery and fitting it and hey presto?

 

[chrispy.clio]

I have 2 spare sensors i think which you could buy

 

[MattyD.]

according to seller its not been in a bump, wouldnt they all go off then tho, not just o/s/r?

 

[MattyD.]

belt is jammed apparently...

 

[Da]

Depends why it was fired.
They don't generally fire for no reason.

And no, it's not as simple as just fitting a new belt unfortunately.

 

[jenic]

Bit of tape over the light on the circuit board and its all magically gone away for pennys :rasp:

 

[MattyD.]

why cant you fit a new one and reset ecu?

 

[Da]

why cant you fit a new one and reset ecu?

The ecu isn't really an issue - it's the airbag computer as I understand things. Renault will tell you it needs replacing at great expense, but they can be reset by certain companies.

See here.

 

[Alastair.]

Bit of tape over the light on the circuit board and its all magically gone away for pennys :rasp:

This

 

[MattyD.]

airbagreset.com, £45!