1998 A3 rear light problem

[120a]

Hi all, i have a 1998 audi a3 and im having some issues with the passenger side rear lights. when in reverse the warning on the dash sometimes goes off to say a bulb is out, as does it when i apply the brake sometimes. i have checked all bulbs and they are all fine. when im in reverse if i press the brake the passenger indicator lights up on the dash permanently, and if i apply the brake whilst indicating left the indicator stops working??? i have checked all the bulbs and tired swapping them from drivers side (all lights that side are fine) to passemnger and it made no difference.

Please help

[VAG1]

Sounds like you've got a wiring fault of some sort. Sorry I can't help further, you're best taking it to a decent garage.

[Tame Technician]

Could be a bad earth, make up a new temp one with a peice of wire and attach to the bulb holders earth and a good earth on the car, to see if it improves. If it fixes it, locate the factory earth and fix it.