Yeah for sure and throw some water over it? :D
[https://www.reddit.com/r/mildlyinfuriating/comments/17rg9zv/i\_think\_something\_is\_wrong\_with\_my\_breaks/](https://www.reddit.com/r/mildlyinfuriating/comments/17rg9zv/i_think_something_is_wrong_with_my_breaks/)
My pad instructions said go to 80mph then brake harshly, repeat 5 times. Imagine having a slow car that must be pretty tricky to do considering it’s 10mph over the speed limit in the UK too.
Alternatively, drive with the brake applied for a while until they heat up and you can feel them ‘glaze’.
Do that a couple of times on a long empty stretch of road and you’ll be reet.
I’ve always found it less effort than multiple stops
And your other comment you said it's a great way to glaze them and now you're saying it's a great way to deglaze them. So, which is it big guy? Or are you just saying things?
Old schoolers feel thing that amateurs don’t. So they can drag the brakes and good to go by feel. My high school mechanics teacher had all these tricks.
They are brand new and need to be bedded in correctly. Just braking regularly is not the proper procedure and how you build high spots and end up with DTV.
We’ve talked about this multiple times, if you don’t know wtf you are talking about, don’t provide advice in a technical sub… 🤦🏼♂️
Bedding in paint, that's new. Also that "bedding in" is overhyped. It's just getting pad material onto the surface of a rotor. It does help in sport/track use, but it quickly wears of in average daily driving and you are left with the same effect as if you just used the brake ad usual.
"Bedding in" usually last between 1 and 3 weeks, depending on driving conditions.
Read the manual or watch the frickin BMW video on brakes, if reading something is too hard for you. It's stated, that you should brake gently (unless it's an emergency situation) for the first 300km. Not "bed in" and almost cook the brakes. "Bedding in" is fine, but only in performance applications.
You honestly have no fucking idea what you are talking about. You bed in to get an even amount of pad material started so when you do have to brake hard you don’t leave behind material and cause DTV which is a real world thing and covered extensively over dozens of white papers.
Furthermore, these ARE performance upgrades rotors. BMW doesn’t/never has sold slotted rotors, only drilled. These need a bed in not only to remove the protective film, but to throw on a layer of carbon from the pad material.
This is a standard industry practice and has been for decades now.
https://www.z1motorsports.com/blog.php?p=brake-pad-bed-in-procedure&gad_source=1&gbraid=0AAAAACmQVhso7UaNEq21wfpfTyz5tWCcd&gclid=Cj0KCQjwsuSzBhCLARIsAIcdLm5dH9srfpQUhqrlmE8Z4Cj5z4xz-XowpETM-AIIZfoDzyCqjHGPXwwaAm4GEALw_wcB
https://www.tirerack.com/upgrade-garage/how-do-i-bedin-new-brake-pads-and-rotors?gclid=Cj0KCQjwsuSzBhCLARIsAIcdLm5K1A4B5YyxkyHrrgaS9_6VQdlASSo9hmLNuZjaCWn4GBhlYzreiNQaAuy5EALw_wcB&ef_id=Cj0KCQjwsuSzBhCLARIsAIcdLm5K1A4B5YyxkyHrrgaS9_6VQdlASSo9hmLNuZjaCWn4GBhlYzreiNQaAuy5EALw_wcB:G:s&s_kwcid=AL!3756!3!386419110396!!!g!!&gclsrc=aw.ds&&affiliate=CP4&gad_source=1&gbraid=0AAAAAD_rH_8-KJSDyYzE1AT0YEg3fDXS2
https://www.powerstop.com/resources/brake-pad-break-in-procedure/
https://www.scca.com/articles/2017183-bed-in-your-race-car-brake-pads-correctly
https://alconkits.com/blogs/install-tips/how-to-bed-in-your-brake-pads
https://www.brakes-shop.com/brakepedia/pads/pad-break-in-procedure
I guess all of these people are wrong too? Fucking wrenchlet….read and learn something. Stop providing horrible fucking advice as usual.
You need to do some bedding, once you warm the brakes up to operating temperature by letting them slightly drag on and off, while you're on the way to a safe spot to bed the brakes, you need to do heavy heavy braking from like 80 mph down to near zero but do not stop because you don't want the pads to stop on the rotor when they're hot like this. You're going to need to do this several times. I would personally Google it to see if things have changed, but when I bed the brakes in my BMW last, years back, this was the way I did it, probably did it like five or six times, before I was done. They lasted a very long time.
It seems like your pads are the tapered ones, that’s why it’s only wearing the middle where the raised sections are.
Do bed them properly, do some hard stops and then see what happens
That's not really unusual. Pads are rarely flat and they need to be "mated" to the rotor. Usually the first 1/16" of the pad will grind away and mate well with the rotor after about 50 miles of regular stopping and going.
It's probably best to break them in properly, but I don't usually do that. The reason people tell you not to stop completely is because ceramic pads form a layer on the rotor once they come up to temperature and stopping completely can leave an uneven layer while breaking them in.
Google bedding in brakes. You need to come up to high-speed 60mph+, then brake hard down to ~25mph, then accelerate back up to 60+, then brake to ~25mph. Repeat this 4-5 times so that you can get your rotors very hot, and meld some of the metal in your rotors with your brake pads (and vice versa).
Depends on how much you pressed the brake. The middle light gray strip is paint that didn't get scratched off yet. If the pads are good and new, then it should scrape off after a few hard breaking attempts.
It's uneven, but it's probably fine, because it's in the middle. If the paint strip was only on the inside or outside, then it's a cause for concern.
Looks like it's making less contact in the middle of the disc. Did you make sure your caliper sliders are moving freely?
You want the whole rotor surface to look consistent.
drive up to 50-60mph and do a couple hard stops to bed the pads in
Do not come to a complete stop, come to about 10mph. Someone posted in another post recently to do 40-10, 30-10, 20-10 and do it again.
Also drive for a good amount of time afterwards to let the brakes cool. Dont park right away
Or maybe 100mph then stop to 20mph? Would solve it
I second, why do multiple stops when you can get them glowing red on the first try and call that good?
Yeah for sure and throw some water over it? :D [https://www.reddit.com/r/mildlyinfuriating/comments/17rg9zv/i\_think\_something\_is\_wrong\_with\_my\_breaks/](https://www.reddit.com/r/mildlyinfuriating/comments/17rg9zv/i_think_something_is_wrong_with_my_breaks/)
My pad instructions said go to 80mph then brake harshly, repeat 5 times. Imagine having a slow car that must be pretty tricky to do considering it’s 10mph over the speed limit in the UK too.
Alternatively, drive with the brake applied for a while until they heat up and you can feel them ‘glaze’. Do that a couple of times on a long empty stretch of road and you’ll be reet. I’ve always found it less effort than multiple stops
Glazing brakes ruins them. Why not just follow the manufacturer’s instructions instead of making up your own?
Because he is on the internet
Glazing is literally the opposite of what you want. OP, do not follow these fkn instructions 😂
Are you trying to fucking kill OP?
How would that kill op? It’s a great way to bed in and deglaze pads
And your other comment you said it's a great way to glaze them and now you're saying it's a great way to deglaze them. So, which is it big guy? Or are you just saying things?
Old schoolers feel thing that amateurs don’t. So they can drag the brakes and good to go by feel. My high school mechanics teacher had all these tricks.
I’m not even that old 😭 These guys could’ve just said they can’t left foot brake, no need to get upset, not everyone can do it and that’s ok
Glaze’em
Drive further. Looks like you only went around the block
Did you bed them properly…?
Gotta buy them a drink first
🤣🤦🏼♂️
Incredible comments both of you 😂👌
More important for the rears
It's not even bedding in yet. It's scraping off paint, lol. Braking hard once or twice should be enough to scrape it clean.
They are brand new and need to be bedded in correctly. Just braking regularly is not the proper procedure and how you build high spots and end up with DTV. We’ve talked about this multiple times, if you don’t know wtf you are talking about, don’t provide advice in a technical sub… 🤦🏼♂️
Wait until you see the comment that tells OP to just drive around with his brakes on.
Please don’t tell me shit like that….my heart hurts now lol.
Bedding in paint, that's new. Also that "bedding in" is overhyped. It's just getting pad material onto the surface of a rotor. It does help in sport/track use, but it quickly wears of in average daily driving and you are left with the same effect as if you just used the brake ad usual. "Bedding in" usually last between 1 and 3 weeks, depending on driving conditions. Read the manual or watch the frickin BMW video on brakes, if reading something is too hard for you. It's stated, that you should brake gently (unless it's an emergency situation) for the first 300km. Not "bed in" and almost cook the brakes. "Bedding in" is fine, but only in performance applications.
You honestly have no fucking idea what you are talking about. You bed in to get an even amount of pad material started so when you do have to brake hard you don’t leave behind material and cause DTV which is a real world thing and covered extensively over dozens of white papers. Furthermore, these ARE performance upgrades rotors. BMW doesn’t/never has sold slotted rotors, only drilled. These need a bed in not only to remove the protective film, but to throw on a layer of carbon from the pad material. This is a standard industry practice and has been for decades now. https://www.z1motorsports.com/blog.php?p=brake-pad-bed-in-procedure&gad_source=1&gbraid=0AAAAACmQVhso7UaNEq21wfpfTyz5tWCcd&gclid=Cj0KCQjwsuSzBhCLARIsAIcdLm5dH9srfpQUhqrlmE8Z4Cj5z4xz-XowpETM-AIIZfoDzyCqjHGPXwwaAm4GEALw_wcB https://www.tirerack.com/upgrade-garage/how-do-i-bedin-new-brake-pads-and-rotors?gclid=Cj0KCQjwsuSzBhCLARIsAIcdLm5K1A4B5YyxkyHrrgaS9_6VQdlASSo9hmLNuZjaCWn4GBhlYzreiNQaAuy5EALw_wcB&ef_id=Cj0KCQjwsuSzBhCLARIsAIcdLm5K1A4B5YyxkyHrrgaS9_6VQdlASSo9hmLNuZjaCWn4GBhlYzreiNQaAuy5EALw_wcB:G:s&s_kwcid=AL!3756!3!386419110396!!!g!!&gclsrc=aw.ds&&affiliate=CP4&gad_source=1&gbraid=0AAAAAD_rH_8-KJSDyYzE1AT0YEg3fDXS2 https://www.powerstop.com/resources/brake-pad-break-in-procedure/ https://www.scca.com/articles/2017183-bed-in-your-race-car-brake-pads-correctly https://alconkits.com/blogs/install-tips/how-to-bed-in-your-brake-pads https://www.brakes-shop.com/brakepedia/pads/pad-break-in-procedure I guess all of these people are wrong too? Fucking wrenchlet….read and learn something. Stop providing horrible fucking advice as usual.
You are a fucking annoying dude lol. A real "pick me" type.
You need to do some bedding, once you warm the brakes up to operating temperature by letting them slightly drag on and off, while you're on the way to a safe spot to bed the brakes, you need to do heavy heavy braking from like 80 mph down to near zero but do not stop because you don't want the pads to stop on the rotor when they're hot like this. You're going to need to do this several times. I would personally Google it to see if things have changed, but when I bed the brakes in my BMW last, years back, this was the way I did it, probably did it like five or six times, before I was done. They lasted a very long time.
It seems like your pads are the tapered ones, that’s why it’s only wearing the middle where the raised sections are. Do bed them properly, do some hard stops and then see what happens
I've always done the bedding thing immediately after installation.
You need to drive around 300 miles for a complete bedding of new rotors and pads. Drive some more.
That's not really unusual. Pads are rarely flat and they need to be "mated" to the rotor. Usually the first 1/16" of the pad will grind away and mate well with the rotor after about 50 miles of regular stopping and going. It's probably best to break them in properly, but I don't usually do that. The reason people tell you not to stop completely is because ceramic pads form a layer on the rotor once they come up to temperature and stopping completely can leave an uneven layer while breaking them in.
Google bedding in brakes. You need to come up to high-speed 60mph+, then brake hard down to ~25mph, then accelerate back up to 60+, then brake to ~25mph. Repeat this 4-5 times so that you can get your rotors very hot, and meld some of the metal in your rotors with your brake pads (and vice versa).
Depends on how much you pressed the brake. The middle light gray strip is paint that didn't get scratched off yet. If the pads are good and new, then it should scrape off after a few hard breaking attempts. It's uneven, but it's probably fine, because it's in the middle. If the paint strip was only on the inside or outside, then it's a cause for concern.
Looks normal for pads and rotors that weren’t bedded in properly. Try 30-10-40-10-50-10-60-5, hard. Report back.
Press those brakes like your life depends on it
I had the same issue on my 740LI, it turned out to be my caliper pins.
All ok
Looks like it's making less contact in the middle of the disc. Did you make sure your caliper sliders are moving freely? You want the whole rotor surface to look consistent.