I have an airbag problem that probably requires a new airbag controller. Looking for part number 8D 0 959 655 TD (or possibly TB which is for cars with head airbags which I assume are the ones on the side roof rails above the front doors Need to check if I have them). My car is a 2000X 2.5TDI Quattro Avant tiptronic. The problem is that the airbag light has come on and won't stay off when reset. A new unit is about £500. I'm told if you get a second hand one with the exact same part number it will work. I have also seen devices on Ebay that claim to erase crash data and reset the airbag unit. My car hasn't been in any crashes but I thought maybe the unit erroneously thinks it has. Has anyone had any experience of these resetting tools? Do they actually work? I love the car but there comes a point where the cost of repairs makes it uneconomic.