Who else has had warped rotors?

[Helo58]

Another interesting thing to consider is wheel nut torque. With all of the talk about pads and rotors, over torqued or unevenly torqued wheel nuts can cause "elastic" rotor distortion as well. (BTW, "elastic" simply means that it isn't permanent and can be undone by loosening the wheel nuts.) When your wheels are removed from the car and put back on, make sure that the technician knows the proper torque spec for the wheel nuts and is using a torque wrench (torque stick for some) and proper tightening pattern to tighten them.

I would encourage those having issues to check this because this is quickly and easily remedied. Keep in mind that no weight/load should be on the wheels and tires when checking the torque of the wheel nuts. The tires/wheels should be off of the ground. This is best done on a lift, but can be done by jacking each tire up individually, loosening all of the wheel nuts (5), and re-tightening them using the proper pattern and torque.

 

[CoconutRob]

My question, has this rotor issue been noticed on both RWD AND AWD?

 

[Joseph Spiegel]

What the hell is brake fade Compensation software. Well I’ll tell ya stinger owners are going through same thing bmw owners did years ago with brake software. Supposed to help if brakes get to hot to stop fluid from boiling and brakes pedal going to floor. I don’t think tech is 100% in that field yet.

Tesla just fixed a Model 3 braking issue Consumer Reports flagged, via a software push.

 

[Hojae84]

My question, has this rotor issue been noticed on both RWD AND AWD?

Mine is awd

 

[CoconutRob]

Mine is awd

Just curious if this problem may be caused by the awd system

 

[Dark_Knight GT]

I have RWD. And my rotors are FUBAR.

 

[eflyguy]

Just curious if this problem may be caused by the awd system

The cause is discussed earlier in this thread - pad deposits on the rotors caused by heat and "lack of awareness" by some owners, and not being critical (except perhaps of Kia), I myself only recently learned of the real cause.

AWD would have no bearing on it.

 

[Hojae84]

Got call from kia consumer affairs. Since <12k miles I'm getting new rotors and brake pads replaced free.
If anyone has issues get it done asap before your miles pile on

 

[stingeradmr]

just came from service at Doug Smith Kia in American Fork Utah. Had almost 16,000 miles on stinger and have had problems with the rotors. I told them it had been this way for awhile but I didn't know what was causing the shimmy when braking until I reads this tread. They stepped up and fixed it and I showed the the wear spot on the bolster and they said they would look into that too. So they didn't have to fix the rotors under warranty but they did. Koodos to them

 

[CaliSting]

Mine are feeling a little more warped now. At 4800 miles. If they get worse I’ll likely go in .

 

[Mach_Tuck]

just came from service at Doug Smith Kia in American Fork Utah. Had almost 16,000 miles on stinger and have had problems with the rotors. I told them it had been this way for awhile but I didn't know what was causing the shimmy when braking until I reads this tread. They stepped up and fixed it and I showed the the wear spot on the bolster and they said they would look into that too. So they didn't have to fix the rotors under warranty but they did. Koodos to them

Bed the new ones just to be safe...

 

[Hojae84]

just came from service at Doug Smith Kia in American Fork Utah. Had almost 16,000 miles on stinger and have had problems with the rotors. I told them it had been this way for awhile but I didn't know what was causing the shimmy when braking until I reads this tread. They stepped up and fixed it and I showed the the wear spot on the bolster and they said they would look into that too. So they didn't have to fix the rotors under warranty but they did. Koodos to them

Given this is kias flagship car they are really digging deep into this. Seems like it only affects a small % of stinger owners. Service manager said they are saving the rotors/pads and sending to kia because they want to examine what may be causing this whether it may be the rotor or pad etc.

 

[Big Ern]

I just took mine in the other day because I felt like the brakes were too loud at 2500 miles. After the tech drove the car he told me that high performance brakes are louder than regular ones and there was nothing to worry about.

My question is:

BS, or not?

Any

 

[Joseph Spiegel]

I just took mine in the other day because I felt like the brakes were too loud at 2500 miles. After the tech drove the car he told me that high performance brakes are louder than regular ones and there was nothing to worry about.

My question is:

BS, or not?

Any

Mine are quiet but only about 1700 miles. Carbon Ceramic breaks are noisy from what I’ve seen. We don’t got those.

 

[stingeradmr]

Even though they fixed mine by turning the rotors, I'm afraid it will come back. has anyone had them replace the rotors.

 

[Dark_Knight GT]

I’ve been getting a pretty good shake in the steering wheel, especially when braking at speed on the interstate. Around the same time a pinging started that is driving me f-ing nuts. It occurs only at low speed, like when I release the brakes or when coming to a stop. It’s coming from both sides of the car.

I jacked it up and spun both front wheels and couldn’t re-create the sound. Leads me to believe it’s a brake/rotor issue. That and the contemporaneous onset with the steering shimmy.

What’s frustrating, I took it to the local dealership (not fiesta in ABQ, I’ve moved) who noted both the warping and noise, but said the rotors were within specs so I’m SOL.

They didn’t locate the noise. Any thoughts on what that might be? I’ve examined the dust shields and they look fine. I might try the other local dealership and then call Kia.

 

[Big Ern]

Mine are quiet but only about 1700 miles. Carbon Ceramic breaks are noisy from what I’ve seen. We don’t got those.

Thanks for the info!

 

[MerlintheMad]

I just took mine in the other day because I felt like the brakes were too loud at 2500 miles. After the tech drove the car he told me that high performance brakes are louder than regular ones and there was nothing to worry about.

My question is:

BS, or not?

Any

Manual, page 5 | 42: "Brembo Brake (if equipped) It is normal with high-performance brakes (large-diameter brembo brakes for enhanced braking performance) to generate braking noises such as a noise of screech, "rrrrr" sound, cracking sound, and a noise of scratching. Also, circular patterns caused by disc surface friction may occur, which is normal and doesn't affect braking performance."

Nothing about steering wheel "shudder" or similar disturbing vibrations felt through the steering wheel. Nothing about "warping". After reading this thread, I "know" more about high performance disc brakes than I have ever known before. Which is to say, I am informed of various conflicting terms and ideas and must decide what I think I know going forward. To wit:

My Brembo's are the most awesome brakes on the planet. Not only are they race track worthy, they have a cool funny name! The bright red and white calliper housing is attractive and even deadly looking, like it could flip the car on its ass if I push too hard. I have respected my Brembos from the instant I got behind the wheel of my car. And I have "tested" them exactly once, at need, where Hwy 78 joins Hwy 95 coming up from the south where it swings east in Oregon: and I missed seeing the Stop sign until I was almost on top of it. I slammed on the brakes HARD and the car came to an impressive stop: maybe even in the vaunted "105 feet from 70 MPH". "Well, that worked!" I said aloud, surely grinning. Then I proceeded with my fun onto Hwy 95, which included more "lively" braking, but nothing to come close to that emergency stop to keep from going through the Stop sign. I have always braked conservatively, preferring to not drive like a lunatic. YMMV, and go for it!

Technical "knowledge" gleaned from this thread, that I believe: rotors will not warp; they will get deposits on them from pad material; avoiding heavy braking (heat) will spare the rotors from getting melted, broken down pad material on them and remain smooth. A brake pad will wear many times faster than any rotor surface. Always treat your brake pads nicely and they will be there for you when you need them. If your brakes get "lumpy", have them checked out. If your brakes are making any noise whatsoever without your applying any pedal action, get them checked out right away. Avoid having your rotors "turned" if at all possible.

 

[stingeradmr]

the mechanic told me that the rotors were indeed warped and since they turned them no more shimmy in sterring wheel

 

[MerlintheMad]

the mechanic told me that the rotors were indeed warped and since they turned them no more shimmy in sterring wheel

Oh well. As I said, what I believe going forward doesn't include warped rotors. Mechanics will say any number of things. We are all only human, that is to say ignorant about a great, many, things: and our way of expressing what we mean may not be as accurate as it could. Warped or not? In any event, if you have deposits burned onto your rotors from compromised brake pads, the only way you are going to get them off is to turn the rotors, so same thing in the end.