Josh1988a4 Posted August 13, 2023 Share Posted August 13, 2023 Hi everyone, I have a A4 b7 2.0tfsi Quattro I’m getting massive vibrations and a scuffing and squeaking sound under braking , I was told this was warped discs so I have had the front discs and pads changed out for brand new. This solved the issue with the vibration but the scuffing was still there, it’s been just over a month now and the huge vibrations have come back! I’ve had another mechanic look at it who was amazed at the heat that was coming from the front discs, he was concerned that the wrong thickness of disc had been fitted (30mm) there are two sizes on euro car parts 25mm and 30mm I was wondering if anyone had experienced this same issue?? Quote Link to comment Share on other sites More sharing options...
Magnet Posted August 13, 2023 Share Posted August 13, 2023 Hello and welcome Josh. I would want to:- (1) Confirm the disc to hub mating surfaces had been thoroughly ( in caps) de-rusted prior to the discs been fitted. (2) Eliminate the caliper serviceability as a possible cause - might be the primary aggravator if the discs are heating up. Perhaps you could let us know how you get on. Kind regards, Gareth. Quote Link to comment Share on other sites More sharing options...
Josh1988a4 Posted August 14, 2023 Author Share Posted August 14, 2023 Yes mate will do 👍🏼 Quote Link to comment Share on other sites More sharing options...
Stevey Y Posted August 14, 2023 Share Posted August 14, 2023 41 minutes ago, Josh1988a4 said: Yes mate will do 👍🏼 Hi if its both discs its probably the wrong thickness discs, if its one side only its a seized calliper so you will have to replace that and the flexible hose as they have a habit of collapsing internally and holding the piston in the calliper on and then the heat kills the calliper. Steve. Quote Link to comment Share on other sites More sharing options...
Josh1988a4 Posted August 14, 2023 Author Share Posted August 14, 2023 It’s both sides mate but every sizing says 30mm, that’s what it has on at the moment. there is only one other 25mm option on euros but that’s the only place. pagid-30mm brembo-30mm ate -25mm even Vw spec a 30mm one …. Quote Link to comment Share on other sites More sharing options...
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