A friend of mine got a a4 and the voltage seems to be going a bit up'n'down. Usualy it is between
12-14v. but sometimes it slowy goes down to 8,2 (on the indicator that is). And one time it just dropped all the way down real fast, and climbed up again. Have been trying to turn AC on/off, and the hi-fi on/off and other switches. But can't find a connection between any electric unit and the jumping voltage. Anyone who have had this problem and maybe could help me out a bit. Will get a hold of a multimeter and messure that voltage on the battery when it's going up'n'down. It happens in motion as well as still.
thank u very much!