hey everybody this is my 1st post and i am getting a little desperate i bought an a4 2002 reg about a year ago and thought i bought a good car!....but it turns out the previous owner had done a good job covering up it had been in an accident.I have spent about £1300 on it since and now my reverse light is flashing!The garage i took it to said it has no fault codes come up on the diagnostics but they think it could be the control module but having spent so much money on it i am a little reluctant to spend more. So my Q. is has any1 had this problem before and what could be causing it? hopefully not to expensive fingers croossed PLEASE HELP!