BOB B Posted August 20, 2008 Share Posted August 20, 2008 Hi. My wifes car is a 98 golf GTI and I have a problem with the brakes, it feels like (and from what I have read) worped discs, it has all the same symptons but I have changed all the discs and pads in January and the front discs again in June. The car seams to run ok then after a month or two it comes back and slowly gets worse. Could it be anything to do with the callipers or pistons? Any help or ideas would be greatly appreciated. Bob. Quote Link to comment Share on other sites More sharing options...
Wez Posted August 20, 2008 Share Posted August 20, 2008 Another possibility would be warped discs Quote Link to comment Share on other sites More sharing options...
Fire148 Posted August 20, 2008 Share Posted August 20, 2008 (edited) Sounds like your calipers are binding slightly and over heating the discs ... or you are buying cheap discs ? Take it out for a very short drive and avoid using the brakes as best you can ... then check the discs for heat (don't touch them ) ... if they are hot then you need a caliper refurb as your pistons are sticking... You can do a run-out test to check for warped discs ... just take the wheel off and spin the disc with a small screwdriver gently touching the outside face ... if it moves your discs are probably warped ... you can also measure more precisely but I dont think you need to go that far by the sound of things... Edited August 20, 2008 by Fire148 (see edit history) Quote Link to comment Share on other sites More sharing options...
BOB B Posted August 20, 2008 Author Share Posted August 20, 2008 Thanks for that Ill go out tomorrow and have a look at what you,ve sujested. Quote Link to comment Share on other sites More sharing options...
Guest Mr.E Posted August 21, 2008 Share Posted August 21, 2008 the VW Golfs are known for "sticky piston syndrome" more often than not it is the rear calipers that suffer from it rather than the fronts. another problem with the rear braking system is the thickness of the brake discs, rear ones tend to be thinner so they dont hold up to the heat very well of even a partially sticking piston. over all the areas i would look at first are the calipers, make sure the piston easily goes in and out in the housing, then also check the emergency(parking) brake and make sure that is free and not hanging up. it will do as much damage as a stuck piston pover a period of time. and last but not least, buy quality discs when you have done all else, the cheaper knock off pattern ones never hold up very well for the most part. Quote Link to comment Share on other sites More sharing options...
SUPRALOOPY Posted August 22, 2008 Share Posted August 22, 2008 the VW Golfs are known for "sticky piston syndrome" more often than not it is the rear calipers that suffer from it rather than the fronts. another problem with the rear braking system is the thickness of the brake discs, rear ones tend to be thinner so they dont hold up to the heat very well of even a partially sticking piston. over all the areas i would look at first are the calipers, make sure the piston easily goes in and out in the housing, then also check the emergency(parking) brake and make sure that is free and not hanging up. it will do as much damage as a stuck piston pover a period of time. and last but not least, buy quality discs when you have done all else, the cheaper knock off pattern ones never hold up very well for the most part. May as well copy and paste as thats a good sus... Quote Link to comment Share on other sites More sharing options...
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