Hi Jackson_a3 ,, I'm New to this sorta thing,, But Only joined after spending Over £600 to find out what MY problem was, Or Should i say Is !??!
This is going to be Long,, But bare with me & hopefully you'll take heed & Not do the same as i.
Well,, My problem started just like yours,, Car wouldn't start, Took it to my Local garage Who said it needs a new battery, Went Audi's and got 1, Next day (Still wouldn't start), Took it to another garage Who (after plugging it to the comp) said that at night the radiator fan wasn't switching off (therefore draining the battery), 2 days after replacing the fan, Guess what ??
??
I thought,, i've had enough of these local garages claiming to know what it is/was,, I took it straight to Audi who said it was the alternator. Got that changed and feeling Happy,, Then Guess what ?????????? Again, 2 days later
After a lot of thought and nowhere else to turn,, i thought i'd give my insurance company a call (Didn't know Why, Maybe just needed some1 to talk to), Well, to My surprise, the woman i spoke to said "You've got RAC cover, Why don't you give them a call",, So that's exactly what i did.
RAC came round, and i think After explaining ALL what i had been thru, I think he took pity on me, because he said "Don't worry Son, I'll get to the bottom of it" (Thank F$$K),,,,, 20mins later, He calls me back out and started to explain,, My A3 has a built in CD/DVD system (Model; RNS - E) Which seems to be the problem, (And after joining this site have found out Many others have had the same thing).
I have since taken the system out, and have had No Problems whatsoever,, But What i want to know/Don't understand is ????, I've taken the system to 3 radio specialists (As Audi are telling me £600), Who have ALL told me to Buy a new one
,, Is There ANYONE out there that can give me any suggestions ????
PS; But Whatever you do,, Do NOT jump start it !!!!