Brake pad separated onto disc? Advice needed please...
Discussion
Good morning! Hoping for some help, direction or info on this please!
Background, I recently replaced the discs and pads on my mk5 R32 Golf on the front. These are genuine items from TPS who supply VW. After fitting them myself and taking time to do the job properly (I hope, all slide pins cleaned greased etc) it was done, back on the road and driven for a couple weeks with zero issue.
A couple weeks later (after thoughts of selling her) I decided to have the car up in the air again and replace all suspension, arms, droplinks, bushes etc on the rear and and struts on the front. Bought myself a Focus to run about in so the job was again not rushed and it's probably been about 4 weeks up to now (life getting in the way...work, kids and family!) All has gone swimmingly until this point.
As i removed the drivers side caliper i was met with the pad separating from the disc? Bearing in mind these have probably cover a couple hundred miles if that. only that 1 pad stuck the other 3 across the axle have been removed ok.
1) Have I done something I shouldn't of done, feel free to politely point me in the right direction...I honestly don't think I have!
2) Should this happen at all, I haven't ragged the car at all let alone ragged it home, stuck the brakes on and left it for weeks.
I'm desperate to get it back on the road as it has been long enough now, do I have a leg to stand on with TPS?
I feel like an absolute failure as I've put so much work into this over the last few weeks and I this was one of the parts that I didn't have to worry about, it's alot of expense if I have to pay again...including new ContiSport 7's and a wheel refurb i'm £2k in!
Many thanks
Adam
Background, I recently replaced the discs and pads on my mk5 R32 Golf on the front. These are genuine items from TPS who supply VW. After fitting them myself and taking time to do the job properly (I hope, all slide pins cleaned greased etc) it was done, back on the road and driven for a couple weeks with zero issue.
A couple weeks later (after thoughts of selling her) I decided to have the car up in the air again and replace all suspension, arms, droplinks, bushes etc on the rear and and struts on the front. Bought myself a Focus to run about in so the job was again not rushed and it's probably been about 4 weeks up to now (life getting in the way...work, kids and family!) All has gone swimmingly until this point.
As i removed the drivers side caliper i was met with the pad separating from the disc? Bearing in mind these have probably cover a couple hundred miles if that. only that 1 pad stuck the other 3 across the axle have been removed ok.
1) Have I done something I shouldn't of done, feel free to politely point me in the right direction...I honestly don't think I have!
2) Should this happen at all, I haven't ragged the car at all let alone ragged it home, stuck the brakes on and left it for weeks.
I'm desperate to get it back on the road as it has been long enough now, do I have a leg to stand on with TPS?
I feel like an absolute failure as I've put so much work into this over the last few weeks and I this was one of the parts that I didn't have to worry about, it's alot of expense if I have to pay again...including new ContiSport 7's and a wheel refurb i'm £2k in!
Many thanks
Adam
Car was lifted in the air with the discs/pads still wet, metallic content in the pads has rusted onto the disc, that is what you have seen, evidenced by the state of the disc.
You can try a claim for them, but don't show them the disc condition.
You can try a claim for them, but don't show them the disc condition.
Edited by E-bmw on Friday 7th November 07:51
Hi thanks for the reply, sounds plausible but it didn't happen to the other 3, just luck possibly? I also would only lift the car if the weather was dry, so whatever has happened has been via the weather with the car stood and before i've raised it. It was dry weather when parked up. Just bad luck?
Would it be possible to get the brake disc skimmed at a machine shop to remove the pad? It's basically brand new after all..
Would it be possible to get the brake disc skimmed at a machine shop to remove the pad? It's basically brand new after all..
Is this a rear, and has the handbrake been applied just after a long run with hot brakes?
It looks like the pad has failed due to defective/poor quality, the pad material shouldn't break up and stick to the disc.
It would be worth trying to scrape the pad remnants off the disc with something less hard than the disc metal itself, eg stiff plastic. Also worth soaking it in something (don't know what - could try WD40, brake cleaner, petrol, etc) to help break it up. Then finally going over the disc surface with eg 500 grit wet and dry paper.
The brakes won't be great on the first few hundred miles but should clean itself up over time.
It looks like the pad has failed due to defective/poor quality, the pad material shouldn't break up and stick to the disc.
It would be worth trying to scrape the pad remnants off the disc with something less hard than the disc metal itself, eg stiff plastic. Also worth soaking it in something (don't know what - could try WD40, brake cleaner, petrol, etc) to help break it up. Then finally going over the disc surface with eg 500 grit wet and dry paper.
The brakes won't be great on the first few hundred miles but should clean itself up over time.
Straight-Sixx said:
Hi thanks for the reply, sounds plausible but it didn't happen to the other 3, just luck possibly? I also would only lift the car if the weather was dry, so whatever has happened has been via the weather with the car stood and before i've raised it. It was dry weather when parked up. Just bad luck?
Would it be possible to get the brake disc skimmed at a machine shop to remove the pad? It's basically brand new after all..
You won't need to get it skimmed, just scrape it off & as above dress it lightly if really required, but personally, I would just scrape it off.Would it be possible to get the brake disc skimmed at a machine shop to remove the pad? It's basically brand new after all..
The pad/disc interface goes through a lot of friction/heat etc in use & will soon clean any scratches off.
paul_c123 said:
Is this a rear, and has the handbrake been applied just after a long run with hot brakes?
It looks like the pad has failed due to defective/poor quality, the pad material shouldn't break up and stick to the disc.
It would be worth trying to scrape the pad remnants off the disc with something less hard than the disc metal itself, eg stiff plastic. Also worth soaking it in something (don't know what - could try WD40, brake cleaner, petrol, etc) to help break it up. Then finally going over the disc surface with eg 500 grit wet and dry paper.
The brakes won't be great on the first few hundred miles but should clean itself up over time.
No this is a front disc, DSG and left in 'Park' so front wheels still turned.It looks like the pad has failed due to defective/poor quality, the pad material shouldn't break up and stick to the disc.
It would be worth trying to scrape the pad remnants off the disc with something less hard than the disc metal itself, eg stiff plastic. Also worth soaking it in something (don't know what - could try WD40, brake cleaner, petrol, etc) to help break it up. Then finally going over the disc surface with eg 500 grit wet and dry paper.
The brakes won't be great on the first few hundred miles but should clean itself up over time.
Worried about my rears now oh god haha
E-bmw said:
You won't need to get it skimmed, just scrape it off & as above dress it lightly if really required, but personally, I would just scrape it off.
The pad/disc interface goes through a lot of friction/heat etc in use & will soon clean any scratches off.
Will give it a try today, was worried about damaging the disc yesterday so left it till I had some better adviceThe pad/disc interface goes through a lot of friction/heat etc in use & will soon clean any scratches off.
Thanks
Adam
I think it's a big ask for a pad to have to deal with a disc in that condition, bit like running a rasp over it so not surprised the pad lost the battle. I'm surprised it was the only one to fail in 200 miles.
I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
Common issue with caravans & trailers - drum brakes - if people leave the brake on.
The lining & the drum face rust together forming a bond & it can be the devil's own job to get them to release.
I've seen the result of people deciding just to hook up to the car & drive off to see if that will do the job. Sometimes it works, sometimes it rips the lining off the shoe but one set looked like a Dali sculpture with the metal of the shoe twisted.
The lining & the drum face rust together forming a bond & it can be the devil's own job to get them to release.
I've seen the result of people deciding just to hook up to the car & drive off to see if that will do the job. Sometimes it works, sometimes it rips the lining off the shoe but one set looked like a Dali sculpture with the metal of the shoe twisted.
Dogwatch said:
I think it's a big ask for a pad to have to deal with a disc in that condition, bit like running a rasp over it so not surprised the pad lost the battle. I'm surprised it was the only one to fail in 200 miles.
I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
Clearly a case of not reading the OP.I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
Try again after reading it.
Dogwatch said:
I think it's a big ask for a pad to have to deal with a disc in that condition, bit like running a rasp over it so not surprised the pad lost the battle. I'm surprised it was the only one to fail in 200 miles.
I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
Good one mate, as above please read. the disc was in pristine condition when parked up it s basically brand new! Brakes not applied onto the disc either.I would either have the discs skimmed or get new ones, preferably the latter.
Yes pads can cope with light rust on discs, we've all found that out, but this is beyond anything the pad fixative could reasonably cope with.
Edited by Straight-Sixx on Friday 7th November 15:15
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