Grabby Brakes

scadagawd · 05-30-2018, 12:21 PM

Was wondering if anyone experienced "grabby" brakes when you come to a stop. Try as I might I find it difficult to gradually come to a stop without it jerking or grabbing at full stop. Usually it's the passengers that complain about the jerk at the full stop. Is this normal?

nd2002 · 05-30-2018, 01:11 PM

Quote:

Originally Posted by scadagawd

Was wondering if anyone experienced "grabby" brakes when you come to a stop. Try as I might I find it difficult to gradually come to a stop without it jerking or grabbing at full stop. Usually it's the passengers that complain about the jerk at the full stop. Is this normal?

Oem pads? Or optional MPerf pads? Or aftermarket?

Optional or aftermarket pads with higher torque bite a lot harder when up to temp

Also, if you are used to a car with a squishier brake pedal, it takes a bit of adjustment to modulate

scadagawd · 05-30-2018, 01:28 PM

Quote:

Originally Posted by nd2002

Oem pads? Or optional MPerf pads? Or aftermarket?

Optional or aftermarket pads with higher torque bite a lot harder when up to temp

Also, if you are used to a car with a squishier brake pedal, it takes a bit of adjustment to modulate

Currently using OEM brake pads. Trying to modulate brake pedal to stop the car without jerking at full stop is very challenging. Didn't have that issue with my Audi S4 although squealing like stuck pig was the biggest annoyance in that car.

alscks0414 · 05-30-2018, 03:23 PM

Quote:

Originally Posted by scadagawd

Currently using OEM brake pads. Trying to modulate brake pedal to stop the car without jerking at full stop is very challenging. Didn't have that issue with my Audi S4 although squealing like stuck pig was the biggest annoyance in that car.

Did you bed-in your pads? I have Pagid RSL29 and RSL19 right now only driven with OEM pads for about 3,000 km but I remember they did not jerk at all after pads bedding-in.

scadagawd · 05-30-2018, 03:25 PM

Quote:

Originally Posted by alscks0414

Did you bed-in your pads? I have Pagid RSL29 and RSL19 right now only driven with OEM pads for about 3,000 km but I remember they did not jerk at all after pads bedding-in.

When you say bedding. Do you mean going fast and slamming on the brakes and doing this over a period of time?

alscks0414 · 05-30-2018, 03:28 PM

Quote:

Originally Posted by scadagawd

When you say bedding. Do you mean going fast and slamming on the brakes and doing this over a period of time?

Yes, that is right. More importantly how long have you driving yours, whats the odo reading?

scadagawd · 05-30-2018, 03:29 PM

Quote:

Originally Posted by alscks0414

Yes, that is right. More importantly how long have you driving yours, whats the odo reading?

Yes, I've done that. Odo reads about $12k km.

alscks0414 · 05-30-2018, 03:35 PM

Quote:

Originally Posted by scadagawd

Yes, I've done that. Odo reads about $12k km.

Hmm... That is weird... I recall myself not experience jerking stop. And I have no passenger for most of the time. Maybe I am not much sensitive but I figure that they stop as smooth as F80 M3 does.

Does it make any nose? Sorry for all questions.
Does it happen all the time or only when raining? (when brakes are wet?)

alscks0414 · 05-30-2018, 04:09 PM

I personally believe that I did not have such experience if it is just your M2 that has such problem not in general, then I will take a guess about your rotor.

Try to run a spirit driving and stop full breaking 60-0 few times and see if this makes any difference. Usually this can happen by excess pad material deposit into the disc unevenly. Or you can take it to local shop to clean up the brake system.

scadagawd · 05-30-2018, 04:50 PM

Quote:

Originally Posted by alscks0414

I personally believe that I did not have such experience if it is just your M2 that has such problem not in general, then I will take a guess about your rotor.

Try to run a spirit driving and stop full breaking 60-0 few times and see if this makes any difference. Usually this can happen by excess pad material deposit into the disc unevenly. Or you can take it to local shop to clean up the brake system.

We'll do. Thanks for your help

gsrbri · 06-01-2018, 10:49 AM

I don't find the brakes grabby at all.

I would not recommend bedding factory pads. They are designed to bed under normal driving.

Maybe you can work on your braking technique, given this is a very important driving skill. Relax your toes as you complete braking.

David1 · 06-01-2018, 03:14 PM

Normal function of BMW brakes.

eeyang92 · 06-01-2018, 03:35 PM

Only thing I can think of is if you're coming from an auto to manual/DCT you'll need to learn again how to stop smoothly since you're basically coasting without power when you're at those speeds - manual you're clutched in/neutral and for DCT I believe it disengages the clutches until you press on the gas again, although I don't drive a DCT so someone else will need to confirm when it disengages.

scadagawd · 06-01-2018, 07:09 PM

Quote:

Originally Posted by eeyang92

Only thing I can think of is if you're coming from an auto to manual/DCT you'll need to learn again how to stop smoothly since you're basically coasting without power when you're at those speeds - manual you're clutched in/neutral and for DCT I believe it disengages the clutches until you press on the gas again, although I don't drive a DCT so someone else will need to confirm when it disengages.

I do drive a DCT. Maybe it is my braking technique? How would one smoothly brake with the DCT without brakes grabbing or jerking at full stop?

dcmac · 06-03-2018, 08:09 AM

I came from a non-performance car and felt the exact same way about my M2 in that it was super grabby and hard to achieve a smooth stop. I think its normal and just need time to get used to the new level of bite.

eeyang92 · 06-03-2018, 03:22 PM

Quote:

Originally Posted by scadagawd

I do drive a DCT. Maybe it is my braking technique? How would one smoothly brake with the DCT without brakes grabbing or jerking at full stop?

Yeah, you'll have to learn how to very smoothly let off the brakes, it took me a month or two.

nd2002 · 06-03-2018, 07:27 PM

Quote:

Originally Posted by scadagawd

Quote:

Originally Posted by eeyang92

Only thing I can think of is if you're coming from an auto to manual/DCT you'll need to learn again how to stop smoothly since you're basically coasting without power when you're at those speeds - manual you're clutched in/neutral and for DCT I believe it disengages the clutches until you press on the gas again, although I don't drive a DCT so someone else will need to confirm when it disengages.

I do drive a DCT. Maybe it is my braking technique? How would one smoothly brake with the DCT without brakes grabbing or jerking at full stop?

Try progressing into braking, gradually increasing pressure (or letting off, depending on the situation).

clubsport · 06-04-2018, 09:13 PM

Mine does that. Especially when youre at low speeds like creeping into the garage. It's done it with both the stock pads and the RS29's I have on now.

irritating but normal, I think.

original gofastnow · 05-01-2019, 09:42 AM

Don't know if they will work for you, but my 2009 650i was changed from OEM to Akebono EUR918 Front Ceramic Brake Pads and now stops are smooth as silk.

05-30-2018, 12:21 PM	#1
scadagawd Second Lieutenant 48 Rep 251 Posts Drives: BMW M2 2018 Join Date: Jul 2016 Location: Vancouver, BC iTrader: (0)	Grabby Brakes Was wondering if anyone experienced "grabby" brakes when you come to a stop. Try as I might I find it difficult to gradually come to a stop without it jerking or grabbing at full stop. Usually it's the passengers that complain about the jerk at the full stop. Is this normal? __________________ BMW M2 2018 LBB BMW X1 2016 PSM Audi S4 2014 SMG
	Appreciate 0 Tweet Quote

05-30-2018, 04:09 PM	#9
alscks0414 Major 690 Rep 1,339 Posts Drives: MY18 X3 M40i, MY18 M3 ZCP Join Date: Apr 2017 Location: Toronto iTrader: (1)	I personally believe that I did not have such experience if it is just your M2 that has such problem not in general, then I will take a guess about your rotor. Try to run a spirit driving and stop full breaking 60-0 few times and see if this makes any difference. Usually this can happen by excess pad material deposit into the disc unevenly. Or you can take it to local shop to clean up the brake system.
	Appreciate 0 Quote

06-01-2018, 10:49 AM	#11
gsrbri Lieutenant 560 Rep 570 Posts Drives: F87 6MT Join Date: Jul 2011 Location: Boston, MA iTrader: (0)	I don't find the brakes grabby at all. I would not recommend bedding factory pads. They are designed to bed under normal driving. Maybe you can work on your braking technique, given this is a very important driving skill. Relax your toes as you complete braking.
	Appreciate 1 CosmosMpower2050.50 Quote

06-01-2018, 03:14 PM	#12
David1 Brigadier General 814 Rep 3,953 Posts Drives: 09 E92 09 X5 Join Date: Mar 2007 Location: Columbus, OH iTrader: (1)	Normal function of BMW brakes. __________________ 2021 M2 Comp Sunset Orange \|Black with orange Stitching Dakota Leather\|Executive Pkg\|DCT
	Appreciate 0 Quote

06-01-2018, 03:35 PM	#13
eeyang92 Captain 319 Rep 660 Posts Drives: LBB M2 LCI 6MT Join Date: Oct 2017 Location: CA iTrader: (0)	Only thing I can think of is if you're coming from an auto to manual/DCT you'll need to learn again how to stop smoothly since you're basically coasting without power when you're at those speeds - manual you're clutched in/neutral and for DCT I believe it disengages the clutches until you press on the gas again, although I don't drive a DCT so someone else will need to confirm when it disengages.
	Appreciate 0 Quote

06-03-2018, 08:09 AM	#15
dcmac Lieutenant 444 Rep 468 Posts Drives: '18 LCI M2 Join Date: Nov 2016 Location: Denver, CO iTrader: (0)	I came from a non-performance car and felt the exact same way about my M2 in that it was super grabby and hard to achieve a smooth stop. I think its normal and just need time to get used to the new level of bite.
	Appreciate 0 Quote

06-04-2018, 09:13 PM	#18
clubsport First Lieutenant 204 Rep 365 Posts Drives: LBB Join Date: Jan 2008 Location: Sunny West Coast iTrader: (0)	Mine does that. Especially when youre at low speeds like creeping into the garage. It's done it with both the stock pads and the RS29's I have on now. irritating but normal, I think.
	Appreciate 0 Quote

05-01-2019, 09:42 AM	#19
original gofastnow New Member 1 Rep 10 Posts Drives: 2007 335i sedan Join Date: Nov 2011 Location: United States iTrader: (0)	650i--Akebono EUR918 Front Ceramic Brake Pads Don't know if they will work for you, but my 2009 650i was changed from OEM to Akebono EUR918 Front Ceramic Brake Pads and now stops are smooth as silk.
	Appreciate 0 Quote