Hmm Machine Rotors

Speed 2179 · 07-13-2011, 04:44 PM

Car was stored for awhile (Don't know how long exactly) and the rotors warped. OEM Pads and Rotors 80% life...The warped rotors are causing a pulsating brake sensation! So options are to get New Rotors all around or Machine existing rotors. BMW dealership said they don't machine rotors but my trusted mechanic said he could do it and all should be well, (no more pulsating brakes)

Anyone have any feedback on this,

Thanks in advance

Cheers

francisomar · 07-13-2011, 06:01 PM

Time to get upgraded rotors and better pads!

Speed 2179 · 07-14-2011, 12:00 PM

Yeah okay,

Has anyone had machined rotors on your BMW... I know on the Ford Pinto its okay (lol)

djinferno · 07-14-2011, 01:58 PM

its a bmw, not a civic, you can get all fours changes for under 1k at the dealership...

dont be cheap...

hoopvillian · 07-14-2011, 06:39 PM

You can machine the rotors.

kevin@bavarianx · 07-14-2011, 07:01 PM

I could probably get you a set of rotors for a little more than what machining them would cost.

Mr. 5 · 07-15-2011, 04:05 PM

Yes, you can machine the rotors.
Take them to anyone that resurfaces rotors and they will gladly do it for you.
In my experience, it costs about 15 per rotor.
The dealer will not do it for you because they want to sell you new parts at their over inflated costs.

Quote:

Originally Posted by djinferno

its a bmw, not a civic, you can get all fours changes for under 1k at the dealership...

dont be cheap...

I'm so sick of comments like this.

Why change the oil? Just buy a new engine. It's a BMW...Don't be cheap!

1k for OEM pads and rotors? That's ridiculous!
Cheap or smart. I consider myself smart.

DJKhan85 · 07-15-2011, 04:08 PM

The original BMW rotors were notorious for warping(At least they were on my car). I went through 3 sets of them in 40k miles. Every set was replaced under the maintenance warranty.

Unless you're getting the rotors for free, skip the BMW originals and get some decent aftermarket rotors and pads.

hoopvillian · 07-15-2011, 04:29 PM

Quote:

Originally Posted by Mr. 5

I'm so sick of comments like this.

Why change the oil? Just buy a new engine. It's a BMW...Don't be cheap!

1k for OEM pads and rotors? That's ridiculous!
Cheap or smart. I consider myself smart.

Exactly. It's not being cheap, it's making wise buying decisions. Paying 1k for OEM pads and rotors is borderline idiotic.

IllLojik · 07-16-2011, 09:18 PM

Quote:

Originally Posted by Mr. 5

Yes, you can machine the rotors.
Take them to anyone that resurfaces rotors and they will gladly do it for you.
In my experience, it costs about 15 per rotor.
The dealer will not do it for you because they want to sell you new parts at their over inflated costs.

I'm so sick of comments like this.

Why change the oil? Just buy a new engine. It's a BMW...Don't be cheap!

1k for OEM pads and rotors? That's ridiculous!
Cheap or smart. I consider myself smart.

My thoughts exactly. "Oh I'm buying a BMW, that means being smart with spending = Being cheap." Sad to say but that's the sad douche esque mindset associated with Bimmer drivers.

1bad335 · 07-16-2011, 09:32 PM

You have probably accumulated some surface rust on the rotors from the car sitting. If you still have plenty of life left in the pads, I would drive it for a while (150-200 miles) and see if the problem goes away. The surface rust can and does create and uneven surface on the rotor and will give you a pulsating pedal. You can also resurface rotors on a lathe and whoever states you can not and the other stupid statement that it's a BMW, is just talking out their ass. There is absolutely nothing wrong with resurfacing a rotor on a proper brake lathe as long as the rotor falls within spec after the resurface it will be fine. But again, honestly I would drive it for awhile. Advice on message boards can be helpful and save you money unless that advice comes from someone who really believes that because it's a BMW you need to buy brand new OEM parts whenever something needs to be replaced or fixed. Dealers love the folks who buy into that bullshit.

Speed 2179 · 07-16-2011, 10:59 PM

My thought exactly, Sounds good, machine away, thanks for the info,

Cheers

07-13-2011, 04:44 PM	#1
Speed 2179 DriveR ... 9 Rep 59 Posts Drives: LCI E90 335i & 06 Ac TL Join Date: Jun 2010 Location: Toronto CAN iTrader: (1)	Hmm Machine Rotors Car was stored for awhile (Don't know how long exactly) and the rotors warped. OEM Pads and Rotors 80% life...The warped rotors are causing a pulsating brake sensation! So options are to get New Rotors all around or Machine existing rotors. BMW dealership said they don't machine rotors but my trusted mechanic said he could do it and all should be well, (no more pulsating brakes) Anyone have any feedback on this, Thanks in advance Cheers
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07-13-2011, 06:01 PM	#2
francisomar First Lieutenant 12 Rep 326 Posts Drives: 2008 335i coupe jb Join Date: Feb 2010 Location: Yauco, PR iTrader: (0)	Time to get upgraded rotors and better pads!
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07-14-2011, 12:00 PM	#3
Speed 2179 DriveR ... 9 Rep 59 Posts Drives: LCI E90 335i & 06 Ac TL Join Date: Jun 2010 Location: Toronto CAN iTrader: (1)	Yeah okay, Has anyone had machined rotors on your BMW... I know on the Ford Pinto its okay (lol)
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07-14-2011, 01:58 PM	#4
djinferno Private First Class 12 Rep 112 Posts Drives: e90 330i Join Date: Aug 2005 Location: Ottawa iTrader: (0)	its a bmw, not a civic, you can get all fours changes for under 1k at the dealership... dont be cheap...
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07-14-2011, 06:39 PM	#5
hoopvillian Private First Class 21 Rep 178 Posts Drives: 335i Join Date: Apr 2010 Location: Dago iTrader: (0)	You can machine the rotors.
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07-14-2011, 07:01 PM	#6
kevin@bavarianx Banned 33 Rep 812 Posts Drives: E36 M3 Join Date: Jul 2010 Location: Brea, CA iTrader: (3)	I could probably get you a set of rotors for a little more than what machining them would cost.
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07-15-2011, 04:08 PM	#8
DJKhan85 Major 24 Rep 1,190 Posts Drives: 2011 4dr 6mt Golf GTI Join Date: Jun 2009 Location: Boston Massachusetts iTrader: (1)	The original BMW rotors were notorious for warping(At least they were on my car). I went through 3 sets of them in 40k miles. Every set was replaced under the maintenance warranty. Unless you're getting the rotors for free, skip the BMW originals and get some decent aftermarket rotors and pads. __________________ 2011 VW GTI 4dr-6mt-Sunroof-Nav-Xenons OLD: 08 335i AW/CR/Poplar 6mt-ZSP-ZPP-ZCW-iPod-iDrive-PDC-Style 230s w/FK 452-Dinan LSD
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07-16-2011, 09:32 PM	#11
1bad335 Captain 15 Rep 606 Posts Drives: 2007 335I/ 2012 335I sportline Join Date: May 2010 Location: New York iTrader: (2)	You have probably accumulated some surface rust on the rotors from the car sitting. If you still have plenty of life left in the pads, I would drive it for a while (150-200 miles) and see if the problem goes away. The surface rust can and does create and uneven surface on the rotor and will give you a pulsating pedal. You can also resurface rotors on a lathe and whoever states you can not and the other stupid statement that it's a BMW, is just talking out their ass. There is absolutely nothing wrong with resurfacing a rotor on a proper brake lathe as long as the rotor falls within spec after the resurface it will be fine. But again, honestly I would drive it for awhile. Advice on message boards can be helpful and save you money unless that advice comes from someone who really believes that because it's a BMW you need to buy brand new OEM parts whenever something needs to be replaced or fixed. Dealers love the folks who buy into that bullshit.
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07-16-2011, 10:59 PM	#12
Speed 2179 DriveR ... 9 Rep 59 Posts Drives: LCI E90 335i & 06 Ac TL Join Date: Jun 2010 Location: Toronto CAN iTrader: (1)	My thought exactly, Sounds good, machine away, thanks for the info, Cheers __________________ // Tiag E90 LCI // COBB Stg2 // vrsf-3"dp's // 94Oct // H&R Sport // 19" w/ Michelin Super Sport // BMW Perf 6Speed Shifter // CDV Delete //
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