warped rotors

[Kunman]

I was doing some fast driving, warped the rotors.

What should I do? I went to a Markham dealer and they rejected my request for new rotors because judging from the condition of my cars, the tech said it is not within the normal wear and tear of daily driving.

The car is 2013 delivered in June, with 19XXX kms. thanks

[kaleb]

Just drive reasonably for a while and it will go away. You probably didn't warp your rotors, you just have some pad deposits on them.

[Kunman]

Originally Posted by kaleb

Just drive reasonably for a while and it will go away. You probably didn't warp your rotors, you just have some pad deposits on them.

Thanks for the response. The master technicians said the rotors were warped

[1MOREMOD]

Originally Posted by Kunman

Thanks for the response. The master technicians said the rotors were warped

They don't know, I was told I had the worst warped rotors they have ever seen. Ran race pads and deposits went away and the rotors were fine. Very unlikey they would warp.

[Kunman]

Originally Posted by 1MOREMOD

They don't know, I was told I had the worst warped rotors they have ever seen. Ran race pads and deposits went away and the rotors were fine. Very unlikey they would warp.

very interesting, thats exactly what they said.

[sawzall]

Its highly unlikely you warped your rotors. Even aggressive street driving wont build up that kind of heat. As long as your pads are fine the deposits on your rotors will clear up after a few days of driving.

[Bill N]

x

[Kunman]

Had a garage take precision measurements with the rotors, both were warped.

Anyways, going to figure out another way to deal with this, thanks for the help everyone.

[1MOREMOD]

Originally Posted by Kunman

Had a garage take precision measurements with the rotors, both were warped.

Anyways, going to figure out another way to deal with this, thanks for the help everyone.

They will measure warped with deposits, don't buy it. If this happened outside of competition I still call bs. Your being duped.

[schnell325]

Our rotors are covered? I thought that was USA only?

[bobblehead]

try Endras BMW. Although it's crazy far but they may do something for you. The worst they can say is No.

[Bill N]

Unless you're driving on track a lot, warping does seem hard to believe.

[Alex///M]

I've had my '08 E90 M3 since new and have driven it on the track no less than 6 times per year every year since buying it. I've never warped my rotors and my local track is of the "point and squirt" variety so it's hard on brakes.

As a matter of fact, I just replaced my original rotors and pads at the beginning of last season after nearly 50,000 km's of year-round usage. So I would take the advise that M3's tend to warp rotors with a massive grain of salt. If you are hard on your brakes, then it doesn't matter what car you drive, you will have overheating and possibly warping issues.

Back to the original poster, I feel the same as several others on this thread - the Markham dealer is trying to take you for a ride to a much larger bill than is necessary. I'd try to find a shop to go to that you can trust.

Originally Posted by Bill N

I recently bought an M3 which I plan to drive on track. I was advised that they do, indeed, tend to warp rotors. I installed the two-piece PFC rotors on the front, we'll see how that goes.

I agree that you should first eliminate the pad deposit possibility. Hawk Blue pads are reputed to be good for that, I hear.

I had a Porsche 951 that I tracked for a number of years. It started (or I started ) to warp Zimmerman rotors in a weekend or two. I was skeptical, but tried frozen rotors. The claim is that cryogenically freezing them changes their properties somehow and makes them more resistant to warping. I admit, sounds like voodoo, and I'm not alone in that opinion. Nonetheless, the warping problem completely disappeared.

[Gearhead999s]

http://www.stoptech.com/technical-su...nd-other-myths


I ran on stock rotors with 55000 kms and at least 35 days of track duty and sold the car with the original rotors.I had shudder many times but it always cleaned up with a bit of driving.The only time you need to change rotors in when they are worn past the wear limits or they are cracked.

[sawzall]

Originally Posted by Bill N

I recently bought an M3 which I plan to drive on track. I was advised that they do, indeed, tend to warp rotors. I installed the two-piece PFC rotors on the front, we'll see how that goes.

I agree that you should first eliminate the pad deposit possibility. Hawk Blue pads are reputed to be good for that, I hear.

I had a Porsche 951 that I tracked for a number of years. It started (or I started ) to warp Zimmerman rotors in a weekend or two. I was skeptical, but tried frozen rotors. The claim is that cryogenically freezing them changes their properties somehow and makes them more resistant to warping. I admit, sounds like voodoo, and I'm not alone in that opinion. Nonetheless, the warping problem completely disappeared.

Whoever told you that is blowing smoke up your *ss. I've done over 30 track days on the OEM rotors on my 911, and while i've gotten judder from pad deposits, they'd clear up after a few days.

Think about it for a minute. Rotors are generally cast iron. Brake pads have a much lower melting point than iron. If you warp your rotors, you would have melted your pads and then some. Cryo rotors are pseudo-science.

[1MOREMOD]

Seems like peope wanna believe they can warp their rotors, I beleieved the opposite and I was right. I would have bought new rotors every time I took it to the track if I let my dealership advise me.

[Kunman]

Originally Posted by sawzall

Whoever told you that is blowing smoke up your *ss. I've done over 30 track days on the OEM rotors on my 911, and while i've gotten judder from pad deposits, they'd clear up after a few days.

Think about it for a minute. Rotors are generally cast iron. Brake pads have a much lower melting point than iron. If you warp your rotors, you would have melted your pads and then some. Cryo rotors are pseudo-science.

Originally Posted by 1MOREMOD

Seems like peope wanna believe they can warp their rotors, I beleieved the opposite and I was right. I would have bought new rotors every time I took it to the track if I let my dealership advise me.

I came here asking for advice, but rustled everyone's jimmies instead. Or should I say everyone rustled their own jimmies, because asking a question about warped rotors here is taken as bragging.

But It is what it is, rotors are warped, will post proof soon.

[Gearhead999s]

Originally Posted by Kunman

I came here asking for advice, but rustled everyone's jimmies instead. Or should I say everyone rustled their own jimmies, because asking a question about warped rotors here is taken as bragging.

But It is what it is, rotors are warped, will post proof soon.

I do not think you listen very well!

A lot of very good collective experience here on this problem.

[1MOREMOD]

Originally Posted by Gearhead999s

I do not think you listen very well!

A lot of very good collective experience here on this problem.

+1, "doing some hard driving" will not warp your rotors. Repeated abuse on the track going from 150 plus to 70 as well as other hard stops for 30 minutes in a row by very experienced drivers doesn't cause that result. My rotors have been smoking and still glowing blue when I came off, still worked all the way to minimum thickness. And gearhead has way more experience on track than me and is a lot faster as well I suspect.

[ailikesiliu]

how "hard" were you driving?

[Kunman]

alright, again thanks for the advice everyone.

I will try to re-bed my jimmies, i mean, brake pads.

Originally Posted by bbs_lm

how "hard" were you driving?

"race track" hard

[Bill N]

Originally Posted by sawzall

Think about it for a minute. Rotors are generally cast iron. Brake pads have a much lower melting point than iron. If you warp your rotors, you would have melted your pads and then some. Cryo rotors are pseudo-science.

I don't have any idea if the cryo process resulted in the improvement...maybe they just use a better rotor...I agree, it sounds like voodoo. In any event, changed rotors, problem went away.

But...you are saying that if a rotor were to warp, it would first have to be melted?