I have a 2004 (newer shape) A6 3.0 tdi SE Quattro. A few days ago it showed "battery level low" in the tv screen, looked at the graph and it was at about 5%, but the car started fine, it has not moved it 3 days, the car is driven 150+ miles a day (mostly motorway). I have not had a chance to check battery voltages yet, but the car starts fine. Also I have noticed that my keyless opening of doors does not work when I come to the car first thing in the morning (but will work after 20 mins of driving), the same goes for the interior lights, won't work on entry to the car, but fine after 20 mins of driving. Is this the comfort module and damp/wet issue, if it is where is it located on my car? Any help appreciated.