Grooves on front rotors

Simsims · 07-19-2009, 07:59 PM

1000km on the car and it looks like there's circular grooves on the front rotors.

Looks like rings on the rotor as if the pads are not flat and thus only wearing out "certain" areas of the rotors.

Doesn't look normal to me. Can definitely feel the groove difference with finger. Any inputs?

Lester · 07-19-2009, 08:49 PM

Take it in to the dealer, doesn't sound right. didn't happen on mine and I have 14k on it now.

Tarn · 07-19-2009, 10:39 PM

i got this problem to i'v kind of been lazy about it but i will be taking mine to the dealer aswell
i noticed them some time ago but im at 8k now and they are still there.

Addict...Nah Im A Junkie! · 07-20-2009, 08:28 AM

Maybe some tiny pebbles are stuck in there and are scraping lines into the rotors. Is there a lot of squeezing when you brake hard?

Simsims · 07-20-2009, 08:30 AM

don't think it's pebbles

the grooves are actually... not grooves, more like bumps

as if the pads had grooves on them and not wearing out a certain parts

07-19-2009, 07:59 PM	#1
Simsims Captain 37 Rep 615 Posts Drives: 119/220 Join Date: Jul 2009 Location: Ottawa iTrader: (0)	Grooves on front rotors 1000km on the car and it looks like there's circular grooves on the front rotors. Looks like rings on the rotor as if the pads are not flat and thus only wearing out "certain" areas of the rotors. Doesn't look normal to me. Can definitely feel the groove difference with finger. Any inputs? __________________ VO 1M - everything except sunroof RIP BSM 135i 2009-2011
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07-19-2009, 08:49 PM	#2
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Take it in to the dealer, doesn't sound right. didn't happen on mine and I have 14k on it now.
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07-19-2009, 10:39 PM	#3
Tarn New Member 0 Rep 24 Posts Drives: 135i Join Date: Feb 2009 Location: vancouver bc iTrader: (0)	i got this problem to i'v kind of been lazy about it but i will be taking mine to the dealer aswell i noticed them some time ago but im at 8k now and they are still there.
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07-20-2009, 08:28 AM	#4
Addict...Nah Im A Junkie! Captain 34 Rep 786 Posts Drives: 09 135i, 98 M rdstr Join Date: Sep 2008 Location: NY iTrader: (0)	Maybe some tiny pebbles are stuck in there and are scraping lines into the rotors. Is there a lot of squeezing when you brake hard? __________________ '09 135i 6MT : Space Grey/Black ette : Cold Weather Package : Sport Package : Glacier Silver Aluminum Trim : iPod and USB : Nav : HD radio : Premium hi-fi system
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07-20-2009, 08:30 AM	#5
Simsims Captain 37 Rep 615 Posts Drives: 119/220 Join Date: Jul 2009 Location: Ottawa iTrader: (0)	don't think it's pebbles the grooves are actually... not grooves, more like bumps as if the pads had grooves on them and not wearing out a certain parts __________________ VO 1M - everything except sunroof RIP BSM 135i 2009-2011
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