I've just bought a 1996 A4 Avant 1.8T sport. There's a few annoying little problems I'd like to sort out though: Rear wiper doesnt work(though washer does).Where is the relay for it or is there any comon faults to look out for? Oil and water temp gauges dont work.Is this a related fault i.e one fault affecting both gauges or could it be that both sensors are faulty? Where are the temp sensors located? Elec mirrors not working.Which fuse number? Faulty switch perhaps? Anything else? I'd like to swap the current headlights to some of the ones in the sticky thread: Possible? Thank you for any help you're able to offer.