Hi, I have a bulb showing and beeping when i drive the car. I thought it was the back left brake light which did not ignite on pressing the pedal. I changed the bulb and still no luck - as anyone else had such an issue and how was it resolved, something tells me its a wiring fault, however is there a way to test this? I have changed my backlights to the newer versions, however these have been on for over a year. On another note my temp gauge at times just stays on '0' even after like 15 mins of driving and on other occasions the dial is fine, this might be a sensor error or something to do with the wiring - any ideas? I have a A3 1.8T, 1998, any help would be appreciated.