Hi I have a problem with my Audi I was driving down the road when the brake warning light came on and I heard 3 beeps. I when I got hope I checked the fluid level and topped it up.
I started the car up again and no light or beeps, I drove it round the corner and it started to beep again but this time the pedal went hard.
Now when I put my foot on the pedal it is hard and when I start the car the pedal stays hard. Now I know this indicates the servo being faulty but I cant seem to find it. Any clues.
It is a Audi 100 avant s4 quattro estate.