M4 Rotors Warping at 2k miles

M4LHR · 05-03-2018, 01:33 AM

So I got my 18 M4 CP two months ago and last week the car started wobbling as I would break down from 60 to 40 mph. Took it to east bay Bmw and they said that rotors had warped... is this normal ? I have not taken the car to the track not I have been riding the breaks.

Thnx.

zamboni · 05-03-2018, 02:14 AM

2K miles is too soon to be warped hope Eastbay BMW would swap out the rotor for you.

marvinp · 05-03-2018, 02:56 AM

That seems unusual. I'm at 4,000 miles and no warping on my brakes.

Keep us posted. I also get my car services at East Bay BMW.

Maxis · 05-03-2018, 03:29 AM

Maybe you should read this,,,

http://f80.bimmerpost.com/forums/sho....php?t=1166131

M4LHR · 05-04-2018, 02:15 AM

East bay bmw shop foreman test drove the car and said the front rotors were warped so they replaced the front rotors and breakes.

The vibration when breaking from 60-40 is gone now. Will keep you posted if it comes back

Thanks for referring me to the other thread. I guess I am not alone !!!

CanAutM3 · 05-04-2018, 05:09 AM

This has been covered extensively in many threads. It very unlikely for rotors as stout as the ones we have on our cars to warp. What you experienced is likely uneven brake pad deposit on the rotor due to improper bedding or brake overheating. Pad deposit is often misdiagnosed as warped rotors because it displays the exact same symptoms. Uneven deposit, if not too severe, usually wears off after a few weeks of normal street driving.

Good for you that the shop replaced the rotors under warranty. Just ensure you bed your new brakes properly.

...and you really need to learn how to spell "brake"

.

05-03-2018, 01:33 AM	#1
M4LHR New Member 8 Rep 19 Posts Drives: M8 Join Date: Mar 2018 Location: Novi, MI iTrader: (0)	M4 Rotors Warping at 2k miles So I got my 18 M4 CP two months ago and last week the car started wobbling as I would break down from 60 to 40 mph. Took it to east bay Bmw and they said that rotors had warped... is this normal ? I have not taken the car to the track not I have been riding the breaks. Thnx.
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05-03-2018, 02:14 AM	#2
zamboni I want to drive a Zamboni 1131 Rep 5,557 Posts Drives: 13 E93 M3 18 F80 M3 16 K71 Join Date: Mar 2006 Location: Monte Sereno, CA iTrader: (7) Garage List 16 K71 F800GT [10.00] 2018 F80 M3 [10.00] 2013 BMW E93 M3 [10.00]	2K miles is too soon to be warped hope Eastbay BMW would swap out the rotor for you. __________________ 18 F80 Imola Red 6MT 16 K71 F800GT Montego Blue 13 E93 M3 Melbourne Red 2000 E46,2006 E90,09 E82,13 E93 328i,14 F30 335i,18 F80 M3 My next vehicle would be a Zamboni
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05-03-2018, 02:56 AM	#3
marvinp Captain 274 Rep 612 Posts Drives: '18 M3, '09 135i Join Date: Jun 2009 Location: San Francisco Bay Area, CA iTrader: (0)	That seems unusual. I'm at 4,000 miles and no warping on my brakes. Keep us posted. I also get my car services at East Bay BMW. __________________ 2018 F80 M3 Comp, Silverstone Metallic II, w/ black 666M (Ordered: 7/9/2017 \| Pickup 9/9/2017) 1998 E36 M3, Cosmos Schwarz Metallic 2009 E82 135i, Montego Blue
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05-03-2018, 03:29 AM	#4
Maxis Second Lieutenant 140 Rep 250 Posts Drives: F83 Join Date: Jun 2014 Location: Enheim iTrader: (0)	Maybe you should read this,,, http://f80.bimmerpost.com/forums/sho....php?t=1166131 __________________ Enjoy
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05-04-2018, 02:15 AM	#5
M4LHR New Member 8 Rep 19 Posts Drives: M8 Join Date: Mar 2018 Location: Novi, MI iTrader: (0)	East bay bmw shop foreman test drove the car and said the front rotors were warped so they replaced the front rotors and breakes. The vibration when breaking from 60-40 is gone now. Will keep you posted if it comes back Thanks for referring me to the other thread. I guess I am not alone !!!
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05-04-2018, 05:09 AM	#6
CanAutM3 General 21117 Rep 20,741 Posts Drives: 2021 911 turbo Join Date: Jan 2012 Location: Montreal iTrader: (1) Garage List 2022 Audi RS6 [10.00] 2021 Porsche 911 turbo [10.00]	This has been covered extensively in many threads. It very unlikely for rotors as stout as the ones we have on our cars to warp. What you experienced is likely uneven brake pad deposit on the rotor due to improper bedding or brake overheating. Pad deposit is often misdiagnosed as warped rotors because it displays the exact same symptoms. Uneven deposit, if not too severe, usually wears off after a few weeks of normal street driving. Good for you that the shop replaced the rotors under warranty. Just ensure you bed your new brakes properly. ...and you really need to learn how to spell "brake" . __________________ Porsche 911 turbo 2021 992 GT Silver Previous cars: M4cs 2019 F82 Limerock Grey / M4 2015 F82 Silverstone / M3 2008 E92 Silverstone / M3 2002 E46 Carbon Black
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