Renault make thousands of pounds every year with this one, all you need to do is start the car and fiddle with the wires that run under the front seats find the connectors and twiddle them about a bit keeping your eye on the airbag light 9 times out of 10 it will go out but at some stage will reapear, the connectors are prone to furring up a bit nothing to worry about i would think, i certainly don`t worry about the same problem on my megane anyway, it could turn out to be under the drivers or the passenger seat or both, trial and error i`m afraid.
Wakey George., March 2012