Hi All - I’ve jus bought a used 2014 A4 Quattro Avant TFSI with a factory fitted tow-bar which would be useful for my bike rack. However I’ve discovered a 2nd battery in the spare wheel well under the spare eurotyre thing. It looks factory fitted but I can’t find out any information on it - either from the hand book or googling. I did find a google image - but that was all. I assume it’s leisure battery for towing a caravan etc - but has anyone got one too or any information on it as an Audi option.
Many thanks for any help.


oops - wrong forum. Now re-posted in B8 forum - but option might apply to B7s too?