Hi, I have an A6 3.2 2005 and I have recently a few problems with some of dashboard functions, it started by just leaving some lights on but after a mile or so everything would go back to normal. now I have a speedo problem, it started by giving wrong speed reading, and stoping at 150mph when the car was stopped!!! now it just wont move or sometimes gives small jumps to 10 and back to 0!!!Does anybody had this problem before??

Many thanks

Paulo