TDIQ
8L > 8P > 8V
- Joined
- Jul 26, 2009
- Messages
- 776
- Reaction score
- 6
- Points
- 18
After a rear brake pipe split I replaced it which I thought would cure my no brakes problem. I then bled them. The brakes worked ok-ish but only towards the bottom of the pedal.
I took it to Audi who tried to bleed them and they couldn't, they said they'd done the master cylinder and the VAG-COM ABS bleed.
I then bought a pressure bleeder and bled them, which made them better but still the braking is at the bottom of the pedal. If you pump them they get harder like there's air in the system, but I bled 500ml out of each calliper and it was completely clear.
Audi suggested it could be a vacuum leak from a split pipe to the servo, could it be? The car has a rough idle when cold, and goes between 800 and 850/900 rpm every couple of seconds for about a second.
Any ideas please, this is driving me mad!
I took it to Audi who tried to bleed them and they couldn't, they said they'd done the master cylinder and the VAG-COM ABS bleed.
I then bought a pressure bleeder and bled them, which made them better but still the braking is at the bottom of the pedal. If you pump them they get harder like there's air in the system, but I bled 500ml out of each calliper and it was completely clear.
Audi suggested it could be a vacuum leak from a split pipe to the servo, could it be? The car has a rough idle when cold, and goes between 800 and 850/900 rpm every couple of seconds for about a second.
Any ideas please, this is driving me mad!