Hi i have an Audi Q7 v6 3l 2013 plate,
we started feeling the brakes being a bit spongey so got the brake pads change, after we thought they weren't quite right so took it back and he re bleed them and same problem and there was nothing else he could do. so we took it to another garage and he said process of elimination ant started with a new master cylinder, was ok for a week but not 100%, then brake peddle all the way down with hardly any brakes. Then changed front os calibre as said bleed nipple was snapped. After changing it was the best my brakes have been again only for one week lol. He said you need a pressure bleed and he doesn't have one. so we went to another garage and got a pressure bleed, they had problems and said not sure how long it will last and also said it could be the newly installed master cylinder again after 1 week no brakes and worst than ever. Obviously the costs are mounting up and i thought i would ask you guy.
many thanks
cliff