Hi peeps! Bought an audi A3 2.0 TDI (140) about 4 months ago, the car is great really pleased with it. The only thing that is bugging me is when i bought it the parking sensors worked fine. But after about 6 or 8 weeks they stopped working instead of getting a short small beep when i put it in reverse i get a long high pitched beep. I was told by a mate that i might of damaged them whilst power washing the car. I've tryed blowing round the sensors with an airline to see if it would dry them out but no joy. Then a few weeks ago when i put it in reverse i got that magical small short beep. I was delighted but soon as i took the handbrake off and started reversing that big long high pitched beep came on to tell me there no working. Anyone got any ideas what the problem might be? Cheers.