[Nijenego]

Excellent guide! Thank you!

[mode.grau]

Great write up and discussion here, thanks everyone.

I've run into a road block trying to do my brakes. My 2 fronts were absolutely no problem at all, everything went smooth. When it came to the first rear (rear right), the 2 pad retaining pins were absolutely impossible.

I did have a proper punch tool which worked just fine for the fronts, but on the rears I could not get them to budge. I tried everything I know/am capable of: hammering harder, WD40, hammering the pins directly, wiggling the pads so I know they're not binding to the pin, etc. I even removed the rotor by removing the caliper then bolted it back on for easier workability. I tried to clear up whatever gunk I could find on the pins. NO LUCK.

It got to a point where both my punch tool and the pins have now flattened out due to the amount of hammering I've done. The caliper's paint is completely f---ed as I stopped caring and decided I'll have to repaint it anyway. I had to abandon the project for this week as my body is aching and I've run out of the energy to figure it out.

I'm going to buy a replacement hardware kit and try to drill out these existing pins. If anyone has ANY feedback or tips to help out, it'd be much appreciated.

Aside: these are the original pads and the car has 67,000 kms on it. Still surprised that the fronts were no issue but the rears are causing me such a headache. Also, yes I had jack-stands as well.

[CanadianHorseMan]

Originally Posted by mode.grau

Great write up and discussion here, thanks everyone.

I've run into a road block trying to do my brakes. My 2 fronts were absolutely no problem at all, everything went smooth. When it came to the first rear (rear right), the 2 pad retaining pins were absolutely impossible.

I did have a proper punch tool which worked just fine for the fronts, but on the rears I could not get them to budge. I tried everything I know/am capable of: hammering harder, WD40, hammering the pins directly, wiggling the pads so I know they're not binding to the pin, etc. I even removed the rotor by removing the caliper then bolted it back on for easier workability. I tried to clear up whatever gunk I could find on the pins. NO LUCK.

It got to a point where both my punch tool and the pins have now flattened out due to the amount of hammering I've done. The caliper's paint is completely f---ed as I stopped caring and decided I'll have to repaint it anyway. I had to abandon the project for this week as my body is aching and I've run out of the energy to figure it out.

I'm going to buy a replacement hardware kit and try to drill out these existing pins. If anyone has ANY feedback or tips to help out, it'd be much appreciated.

Aside: these are the original pads and the car has 67,000 kms on it. Still surprised that the fronts were no issue but the rears are causing me such a headache. Also, yes I had jack-stands as well.

Oh shiiite. lol. Not pretty. I however had the same issue as you. Fronts prolly took me a max of 20 minutes. My rears calipers, pads, rotors (I did the whole job) took about 2 hours. Getting the caliper retaining bolts out took forever; I thought they were gonna snap off they were so hard to get out (due to the scotch lock crap on them). Pad retaining pins took A LOT of small/ and brisk taps to get out. I have 2 marks (one on each side) and I was quite sad

But yours are clearly depressing. I have no tips except maybe spray some wd on there or pbblaster and walk away for a day/night and try to tap them out the next day.

They’re stainless but I believe the spring/expanding washer thing is not very resistant to rust and that’s what’s stopping it from coming out.

I would recommend before you go back out there to work on it to go get some new pins.

I don’t get why we don’t slather on the brake grease or anti-seize on these pins, especially on the washer/spring part of the pin but the manual says not to do I didn’t do it.

Anyhow, good luck. Maybe it’ll buff out?

[Itogliano]

Originally Posted by CanadianHorseMan

Oh shiiite. lol. Not pretty. I however had the same issue as you. Fronts prolly took me a max of 20 minutes. My rears calipers, pads, rotors (I did the whole job) took about 2 hours. Getting the caliper retaining bolts out took forever; I thought they were gonna snap off they were so hard to get out (due to the scotch lock crap on them). Pad retaining pins took A LOT of small/ and brisk taps to get out. I have 2 marks (one on each side) and I was quite sad

But yours are clearly depressing. I have no tips except maybe spray some wd on there or pbblaster and walk away for a day/night and try to tap them out the next day.

They’re stainless but I believe the spring/expanding washer thing is not very resistant to rust and that’s what’s stopping it from coming out.

I would recommend before you go back out there to work on it to go get some new pins.

I don’t get why we don’t slather on the brake grease or anti-seize on these pins, especially on the washer/spring part of the pin but the manual says not to do I didn’t do it.

Anyhow, good luck. Maybe it’ll buff out?

I think most pads will come with new pins, my StopTechs did, at least.

I would also suggest trying to loosen/break free the retaining spring and try hitting the pins with some penetrating oil and letting it sit overnight. If they are seized due to rust (which it looks like is the case), I would also try consistent rapid taps on the punch/pins instead of single hard blows. The vibrations can help break the rust free

[BeFitty8_F32]

Originally Posted by Itogliano

I think most pads will come with new pins, my StopTechs did, at least.

I would also suggest trying to loosen/break free the retaining spring and try hitting the pins with some penetrating oil and letting it sit overnight. If they are seized due to rust (which it looks like is the case), I would also try consistent rapid taps on the punch/pins instead of single hard blows. The vibrations can help break the rust free

Good to know about StopTechs. EBC Reds did not come with the pins.

[Itogliano]

Originally Posted by BeFitty8_F32

Good to know about StopTechs. EBC Reds did not come with the pins.

That is also good to know. Yeah the StopTechs (sports) came with both new pins and retaining springs

[GeordieRacer84]

Originally Posted by fortythirtyfive

My Zimmermann discs are currently suspect of some horrid noise. I feel the garage I used messed up during installation.

https://streamable.com/hr3ph

At first the brake shield was suspect but I've leveraged that away with full clearance, so now I'm thinking of refitting the disc. Last time I attempted (before getting the garage to do it for me) I couldn't shift the two bolts holding the caliper in.. what tool did you use? My breaker bar is around 2 1/2 ft long so it won't really clear the wheel arch

Hi There, what was the issue in the end? I think i have the same problem, First BMW, 2013 330d. Loving it but having some niggles!. Getting the rubbing noise as if the disc is not rotating true. gets worse when turning and goes away when apply bit of brake.

TIA

[fortythirtyfive]

Originally Posted by GeordieRacer84

Hi There, what was the issue in the end? I think i have the same problem, First BMW, 2013 330d. Loving it but having some niggles!. Getting the rubbing noise as if the disc is not rotating true. gets worse when turning and goes away when apply bit of brake.

TIA

For me it was purely just the addition of slotted and dimpled rotors, the air gets trapped in them causing the sound. I believe fully drilled rotors aren't as bad but do have some what of a sound

[jrbeckie]

THANK YOU Daggers!! Will be doing this in the upcoming month and your guide is most helpful, even with little tips along the way