I don't suppose anyone would have a lot of knowledge about the astra g seeing as this is a Vectra forum but here goes. We bought an 03 astra 1.7dti as our second car. Test drive went fine but on the way home the airbag light came on. Its been on 3 times now but only it seems when the engine has been up to temperature for about 20 minutes or so, when the engine cools down the light goes off. I've read a lot about the plugs under the seats becoming loose but this doesn't explain why it happens when it does. Any ideas anyone? I'm thinking along the lines of ecu or airbag ecu. Does anyone know if the astra airbag ecu is plug & play or if you need a trip to the stealers?