Squealng brakes
Discussion
Never had this problem before and I've done brakes more times than I care to remember. Anyway, new pads and discs on my Wife's A-Class, all Pagid stuff. Copper grease on the backs of all the pads. As soon as they get warm they squeal really loudly, it's embarrassing. All I can think to do is pull all the pads out and re grease. Any other suggestions?
Funny, I just posted about something similar in the brakes/suspension forum. I'm gonna take a guess that you are using the performance pads and not the stock equivalent. Performance pads are going to be noisy. Switch back to a stock style pad, they usually work/feel better under normal use anyway.
PaulKemp said:
Genuine Mercedes pads will not be made by Mercedes nor will the calipers
That's exactly my point. (sorry for being a little obtuse)I think all the main brands of brake pads belong to the TMD Friction group and they are suppliers to Mercedes, see here: http://www.tmdfriction.com/en/oem/references-pc The brands include Mintex, Pagid, Textar and Don. The biggest difference is likely to be the name on the box.
Everything's new. Discs and pads. 4 Pagid discs. Front Pagid pads and rear ATE pads. New shims too. I don't want to spend £45 on set of Merc pads if it's something I've over looked. If that's the only option then I'll put my hand in my pocket.
My Dad suggested taking it for a burn and giving the brakes a good hammering might help...
My Dad suggested taking it for a burn and giving the brakes a good hammering might help...
Locknut said:
That's exactly my point. (sorry for being a little obtuse)
I think all the main brands of brake pads belong to the TMD Friction group and they are suppliers to Mercedes, see here: http://www.tmdfriction.com/en/oem/references-pc The brands include Mintex, Pagid, Textar and Don. The biggest difference is likely to be the name on the box.
I'm no expert but I don't think so. For example if you buy brake discs/pads from Peugeot you'll probably get TRW parts which I don't think are a part of TMD Friction. I'm not saying that Peugeot manufacture their cars with TRW parts but I wouldn't be surprised if they did. I don't know who supplies Mercedes but I'd hazard a guess it's Bosch. I'd also hazard a guess that if you went to Mercedes they wouldn't be selling you either Pagid or Mintex under any name. Personally, I wont use either regardless of who makes them & consider them no more than cheap pattern parts which I've had problems with in the past. On my own vehicles I'll use nothing but Bosch usually or TRW depending on price because they are consistently better & never problematic.I think all the main brands of brake pads belong to the TMD Friction group and they are suppliers to Mercedes, see here: http://www.tmdfriction.com/en/oem/references-pc The brands include Mintex, Pagid, Textar and Don. The biggest difference is likely to be the name on the box.
I believe some big names in tyres also own & manufacture other cheaper brands of tyres & obviously they are not all the same across the range just like brake parts aren't.
Had this on wife's santa fe. The callipers were not releasing properly. The piston at the bottom of the calliper was not releasing so the bottom half or so of the pad was always pushed against the disc. The pad was glazed and produced the squeal as you came to a stop. Plenty of oil freed up the piston but we also changed the pads and all is well now.
Yes Pagid are TMD Friction, as Textar are, but I would swap them with Textar all day long. They are different. If you got them from ECP they should swap them. Ate are good. Pagid suggest you should only use their own Ceratec paste, also if you have a spring retainer, they advise it is renewed too. It is very hard to get Pagid to accept their product is inferior, and they will go out of their way to prove that the pad material has been contaminated by something justifying their refusal to accept a return. Euro though, have in some cases, a no quibble parts swap policy, so may resolve it. Do make sure though, that you haven't got grease on the pad surface, as it is possible, and any return might receive a negative response. I won't mix Pagid/Textar items, as it gives agid a greater excuse. I only use Pagid if the Textar equivalent isn't available, and for any big brake items such as on fast cars, won't touch them, as it isn't just squeals, it's judders too on those.
I'm no scientist, maybe related to heat dissipation, crap compounds, whatever. We've used their Ceratec, their caliper springs, asked customers not to use wheel cleaners, not used them ourselves or whatever, but it still occurs frequently, not every time, but too often for satisfaction. If you'd fitted as many Pagid brake sets, of pads or pads and discs as we have, and still had the problem, then swapped the lot for Textar, ATE, or OE when necessary, to no longer have an issue, you'd know I'd stopped asking myself the same a couple of years ago. Bizarre but it's how it is. Just bad luck? The same complaints don't arise with other materials, and we don't get the reps with the scientific reports claiming wheel cleaning additive contamination either when other materials are used in the same car when it is then cleaned as usual. Or by using copperslip, but we use BMW plastilube in the main.
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