Worn Rotors

Diver · 10-11-2014, 03:45 PM

One of the rotors on my 135i appears to have lots of grooves in it. The car has only 13,000 miles. A shop foreman at the dealer looked at it and said BMW is refusing to replace these under warranty unless the rotor is worn past its thickness spec. What should I do?

lowbudgethero · 10-13-2014, 12:23 PM

brake hard until it does

vantagesc · 10-13-2014, 12:46 PM

Quote:

Originally Posted by Diver

One of the rotors on my 135i appears to have lots of grooves in it. The car has only 13,000 miles. A shop foreman at the dealer looked at it and said BMW is refusing to replace these under warranty unless the rotor is worn past its thickness spec. What should I do?

Does the shop foreman think they need replacement? If there is a safety issue then I'd discuss with the dealer and ask them to tell BMW that it's a safety issue and that your car was driven normally.

If there is not a safety issue, then you're fine.

Diver · 10-13-2014, 01:30 PM

Quote:

Originally Posted by vantagesc

Does the shop foreman think they need replacement? If there is a safety issue then I'd discuss with the dealer and ask them to tell BMW that it's a safety issue and that your car was driven normally.

If there is not a safety issue, then you're fine.

Shop foreman said they did not need replacement and that there was no safety issue. It just looks ugly. If the wear pattern on one side continues to be far worse than the other, I believe eventually the car will start to pull to one side, I will have a solid complaint and will probably get a replacement under warranty. Stay tuned.

Diver · 10-13-2014, 01:31 PM

Quote:

Originally Posted by lowbudgethero

brake hard until it does

Sounds like a plan. When in doubt, drive the piss out of your car...

Diver · 09-18-2015, 01:55 PM

I have 18k miles and the wear continues. Does anyone know a phone number to call at BMW to appeal if the dealer says no again?

MightyMouseTech · 09-18-2015, 01:57 PM

Grooves are purely cosmetic. My car has the same thing, but only on the outside of the right front rotor, started when new. Not worried about it. I am at 45k now.

You should just drive it.

Ginger_Extract · 09-18-2015, 02:58 PM

Does anyone have the min. rotor thickness for the front and rear discs on the 135i? Was looking at my rotors today, but noticed that there is no marking or line.

Suprgnat · 09-18-2015, 05:07 PM

Quote:

Originally Posted by Ginger_Extract

Does anyone have the min. rotor thickness for the front and rear discs on the 135i? Was looking at my rotors today, but noticed that there is no marking or line.

Per Realoem 24.4mm, 20.4mm.

_Ryan_ · 09-18-2015, 06:35 PM

Quote:

Originally Posted by MightyMouseTech

Grooves are purely cosmetic. My car has the same thing, but only on the outside of the right front rotor, started when new. Not worried about it. I am at 45k now.

You should just drive it.

135ivert · 09-19-2015, 09:10 AM

After 18K miles is there a difference between the right & left side pads? If so, that's a problem. If the are wearing evenly, I'd say you're OK.

davis449 · 10-05-2015, 11:04 AM

I had grooves in mine when I bought it last year with 27K on it. I don't consider it much of an issue as long as it doesn't compromise the rotor's integrity (i.e. not worn in that groove to min. rotor thickness). It wasn't until they started vibrating through the steering wheel and pulsating from the pedal that I considered it and issue. Then BMW replaced the pads and rotors under warranty.

10-11-2014, 03:45 PM	#1
Diver Brigadier General 504 Rep 3,446 Posts Drives: Black '12 135i - Sold Join Date: Nov 2010 Location: Texas iTrader: (0)	Worn Rotors One of the rotors on my 135i appears to have lots of grooves in it. The car has only 13,000 miles. A shop foreman at the dealer looked at it and said BMW is refusing to replace these under warranty unless the rotor is worn past its thickness spec. What should I do? __________________ See my photography at http://ronscubadiver.wordpress.com
	Appreciate 0 Tweet Quote

10-13-2014, 12:23 PM	#2
lowbudgethero Captain 125 Rep 750 Posts Drives: '98 Z3M (gone), '09 135i Join Date: Feb 2013 Location: 908 iTrader: (0) Garage List 2009 BMW 135i [8.50]	brake hard until it does
	Appreciate 0 Quote

09-18-2015, 01:55 PM	#6
Diver Brigadier General 504 Rep 3,446 Posts Drives: Black '12 135i - Sold Join Date: Nov 2010 Location: Texas iTrader: (0)	I have 18k miles and the wear continues. Does anyone know a phone number to call at BMW to appeal if the dealer says no again? __________________ See my photography at http://ronscubadiver.wordpress.com
	Appreciate 0 Quote

09-18-2015, 01:57 PM	#7
MightyMouseTech Major General 4338 Rep 6,196 Posts Drives: 13 135i 6MT LeMans Blue MSport Join Date: Feb 2013 Location: Ottawa, Canada iTrader: (0)	Grooves are purely cosmetic. My car has the same thing, but only on the outside of the right front rotor, started when new. Not worried about it. I am at 45k now. You should just drive it.
	Appreciate 0 Quote

09-18-2015, 02:58 PM	#8
Ginger_Extract California-bound 383 Rep 1,480 Posts Drives: BMW 135i Join Date: Jan 2013 Location: Los Angeles, CA iTrader: (3)	Does anyone have the min. rotor thickness for the front and rear discs on the 135i? Was looking at my rotors today, but noticed that there is no marking or line. __________________ Streets of Willow: 1:27.7 CW 11/15/15; 1:29.5 CCW 8/15/15 \|\|\|\| Autoclub Speedway ROVAL (CCW): 1.52.6 - 12/2/17 Willow Springs - Big Willow (CW): 1:35.8 - 3/31/18 \|\|\|\| Buttonwillow #13 (CW): 1:59.3 1/27/18 https://www.facebook.com/JakeStumphRacing \|\|\|\| http://www.youtube.com/user/RaceMeMZ3
	Appreciate 0 Quote

09-19-2015, 09:10 AM	#11
135ivert Lieutenant 64 Rep 521 Posts Drives: E88 135i,E70 X5M,E93 M3 Join Date: Mar 2013 Location: Colorado iTrader: (1)	After 18K miles is there a difference between the right & left side pads? If so, that's a problem. If the are wearing evenly, I'd say you're OK.
	Appreciate 0 Quote

10-05-2015, 11:04 AM	#12
davis449 Captain 423 Rep 887 Posts Drives: 2014 Audi SQ5 Join Date: Apr 2014 Location: San Antonio, TX iTrader: (0)	I had grooves in mine when I bought it last year with 27K on it. I don't consider it much of an issue as long as it doesn't compromise the rotor's integrity (i.e. not worn in that groove to min. rotor thickness). It wasn't until they started vibrating through the steering wheel and pulsating from the pedal that I considered it and issue. Then BMW replaced the pads and rotors under warranty.
	Appreciate 0 Quote