Hi
I need some help with my audi a4 b8 2009 diesel
For some reason my audi's battery is draining rather quickly i've bought a cheap battery just to use as a test to see if its just my old battery thats gone and needs replacing or if something is draining it. ive checked fuses and nothing seems to be a miss.
Has anyone had this problem before ?
Is there a fix?
Is it majorly important that the battery is coded ?
Any help would be greatly appreciated.