As the title states, my 2001 s3 8l seems to have a flat battery when it is left un-driven for a couple of days.
I got a local garage to check for any drains and all they came back with was to replace my battery as the one which came with the car looked undersized and didn't fill the battery holder fully. So i have done this today and replaced a cheap and nasty battery with one of these:
Bosch Audi S3 Battery 027 3 Year Guarantee | Euro Car Parts UK’s No.1 Car Parts Retailer
The swap was easy enough, however i took the car out for a run after the install and when i parked back on the drive i left the car running for a couple of minutes then turned off the ignition and walked round to the front of the car where i heard an electrical wining noise. I opened the bonnet and its coming from under the inlet where the alternator is located. I researched this on the forum and have seen other people posting about this issue. I timed the noise and it lasted for 11 minutes. Surley this drains the battery?
If anyone has any ideas of can offer some advice it would be much appreciated.
Thanks in advance.