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MGpaulie
29-01-2011, 06:49 PM
I've a 2010 A3 20tdi, this morning just after washing it I went for a run and after a few mins the red battery light came on. Now every time i start it the light comes on after about 30secs.

Does this light ONLY mean that there is a problem with the alternator? Can it be anything else?

only message i get on display is that 'stop/start function disabled due to malfunction'. Even if I switch 'stop/start' off battery light still comes on

Before washing it I did let the car idle for a few minuttes just to defrost it and did think I noticed a slight burning smell but not sure.

any ideas :confused:

Thx

Paul

kenney
29-01-2011, 06:53 PM
Yes i think you have a problem with the alternator

phil miller
29-01-2011, 06:54 PM
hi mate it does sound like you have a charge issue, but due to the age of the car id take it to the dealer, im not sure if yours has a smart charge system if it does then it could be an ECU fault which would also explain the stop/start issue

Mike Foster
29-01-2011, 10:19 PM
I should get it back to the dealer asap.

Could be dangerous.