There is a knocking noise coming from the rear right brake. Normally only when braking gently
2006 Audi A4 2.0 TDI Avantrev counter does not work oil pressure light and fuel light comes on and stays on temp and brake pad light flash on and off. could easily be explain as gremlins behind the dash if they were real. any ideas how to fix?
1995 Audi A4 1.6Tell us about your A4 problem