Hi I just bought an 51 plate Audi A4 1.9 tdi b6 model. The speedometer does not work and is constantly on zero and the fuel gauge fluctuates while driving. Also the odometer is stuck on 123122 miles.

Any help would be greatly appreciated. I'm a student and live in London so budget tight, if anyone can recommended a mechanic who doesn't charge an arm and a leg would be a great help too.