Pagid Brake discs warping

[acebundi]

Hi

I bought pagid brake discs from euro parts had them fitted by a local mechanic, about a month later the car was very jerky when braking (was not smooth), was told by mechanic the discs must be warped so went back to euro parts and they replaced the discs and I had them fitted by an audi specialist this time as, 2 months later, I now have the same issue? so my question is: has anybody else had a bad batch of pagid discs or could it be an underlying issue causing the discs to warp?

[Eshrules]

Not meaning to insult, but do you make a habit of sitting on the footbrake when you've come to a stop? This can often lead to warping of the disc.

aside from that, are you sure it's the disc that's warped and not another issue at play here? Are all suspension/running components in good order?

FWIW, I ran pagid on the polo for ~5k without issue.

[warp_speed]

You need to ensure the hubs are super clean, supposedly moisture gets between the disc and hub and causing corrosion to form between the two of them. This can lead to the disk not sitting flush on the hub and warping of the brake disc - its not really warping but its an uneven transfer of brake material, in any case its normally replacement of the discs and pads.

[acebundi]

Not meaning to insult, but do you make a habit of sitting on the footbrake when you've come to a stop? This can often lead to warping of the disc.

aside from that, are you sure it's the disc that's warped and not another issue at play here? Are all suspension/running components in good order?

FWIW, I ran pagid on the polo for ~5k without issue.

Hi, I do sit with my foot on the brake peddle I will avoid that on the next set of discs I will get other components looked at too, Thanks very much for reply

[acebundi]

will make sure mechanic is aware of that. Thanks very much

[Eshrules]

I've just realised, at no point do you mention having replaced the pads.

Surely you've not fitted new discs without new pads?

[acebundi]

I've just realised, at no point do you mention having replaced the pads.

Surely you've not fitted new discs without new pads?

Hi
I have changed the pads every time the discs were changed

[BenC30]

Hi
I have changed the pads every time the discs were changed

I have the same problem did you ever find out what the problem was?

[Captain Jimbo]

I have the same problem did you ever find out what the problem was?

I have the same problem with Pagid disks and pads on my S3. There is a vibration through the steering wheel when braking and this occurred right from fitting. I contacted Euro Car Parts and they said I can send them back but they would have to be tested by Pagid before they would issue a refund and the process can take six weeks! I asked what I was supposed to do for brakes for six weeks? They said buy another set... So i did after debating whether to go for Pagid again and ended up glad I did: When I checked the run out of the first set with a dial gauge they are both between 0.04 to 0.05 mm and low and behold the replacement set are the same, at the same point on each disc too. The second set went straight back for a refund before completing the install as they were unmarked. I cannot get a figure for the run out tolerance for these discs from Euro Car Parts but I'm pretty sure that it is the run-out causing the vibration. I am now trying to decide what discs and pads to fit before sending the first set back and trying to get a refund....

[warp_speed]

Have you checked the hub surface, considering it’s at the same point as before?

Audi told me the hubs have to be super clean before fitting discs. I did debate on how you would make sure you don't remove too much material from the hub while cleaning, new hubs are expensive. They said light emery paper.

This was during a heated discussion regard the warranty for genuine brake discs I fitted and warping after 5k miles. They didn't honour it and told me I didn't clean the hubs properly.