Who else has had warped rotors?

[Hojae84]

My service advisor said they'd have to machine mine. Is "machining" and turning the same process? Or do they literally just turn the rotors 180 degrees so that the pads make contact with the opposite side?

I think machining and turning is same
Just like sands or shaves down surface of rotor till flat? Me thinks

 

[Stinger GT SS]

I think machining and turning is same
Just like sands or shaves down surface of rotor till flat? Me thinks

“Machining” & “Turning” are the same, some people just have different interpretations. Basically they machine (skim) the faces (both sides) of disc until they run true to the hub & they have a max. amount of material that can be removed. Once the max. amount removed is met or is exceeded then rotors need to be replaced, they cannot be salvaged.

 

[Waynerm002]

i found this item#(51712-J5500) seems to be a single front rotor for the stinger. this is based on my research online, so maybe someone else can confirm

I checked Tasca parts and to do a full replacement with pads it would be around $600 for the fronts. I would replace with a set of matched pads if it would make things better in the long run.

 

[Hojae84]

I checked Tasca parts and to do a full replacement with pads it would be around $600 for the fronts. I would replace with a set of matched pads if it would make things better in the long run.

I really think and consensus seems it's mainly rotor issue. We have legit calipers and pads from brembo so rotor should be weak link. May save yourself money by not buying new pads and wait out on affordable aftermarket rotors or try get ur free rotor replacement

 

[Waynerm002]

Yeah, not gonna do anything yet but if it gets worse i’m taking it back for another set.

 

[p51]

Is there any consensus on if this is a 2018 only issue?

 

[MerlintheMad]

Is there any consensus on if this is a 2018 only issue?

That would be negative. But if the MY19 has different rotors than MY18, then that would indicate a fix has taken place. How do we find out the source of rotors on the Stinger?

 

[robz32]

Took my car in for a service interval checkup and brought up the rotor issue. The service advisor said that since I was just past the 12k mark that brake were no longer covered under warranty and suggested resurfacing/machining/turning them, I told him that, that would just make the issue come back sooner than before as they will be removing material off the disk therefore reducing its ability to dissipate heat effectively.

I have called KIA consumer affairs and I am waiting on a resolution form them.

 

[Kamauxx]

Took my car in for a service interval checkup and brought up the rotor issue. The service advisor said that since I was just past the 12k mark that brake were no longer covere under warranty and suggested resurfacing/machining/turning them, I told him that, that would just make the issue come back sooner than before as they will be removing material off the disk therefore reducing its ability to dissipate heat effectively.

I have called KIA consumer affairs and I am waiting on a resolution form them.

When did you call and who did you speak with? I just called them for the second time in a week and spoke with Valerie both times.

For my case she says she will have to call the dealer to get the info for my repair order. From there they will contact a district rep who makes the final decision. I made sure to let them know I initially noticed the problem many miles ago but was just able to take it in this weekend.

 

[Hojae84]

Took my car in for a service interval checkup and brought up the rotor issue. The service advisor said that since I was just past the 12k mark that brake were no longer covere under warranty and suggested resurfacing/machining/turning them, I told him that, that would just make the issue come back sooner than before as they will be removing material off the disk therefore reducing its ability to dissipate heat effectively.

I have called KIA consumer affairs and I am waiting on a resolution form them.

Gdluk. Hoping a good outcome

 

[robz32]

When did you call and who did you speak with? I just called them for the second time in a week and spoke with Valerie both times.

For my case she says she will have to call the dealer to get the info for my repair order. From there they will contact a district rep who makes the final decision. I made sure to let them know I initially noticed the problem many miles ago but was just able to take it in this weekend.

Called a week ago.
Your case is exactly like mine. The issue started some miles back, but started getting worst.
I spoke with the same person at consumer affairs, Valerie, so far your process seems follow mine as well. She got in touch with the dealer to get an estimate on the replacements and labor, now she is waiting for an answer.

 

[rocket23]

so where are the replacement rotors?? I'm getting slotted and drilled with ceramics......or just get the ceramic pads now??

 

[Audible Silence]

Find it hard to believe the rotors are so much. Rotors for the charger SRTs are slotted from the factory, cost $70 years ago, can get them now for less. Hopefully a cheaper alternative comes from the aftermarket

 

[rocket23]

Find it hard to believe the rotors are so much. Rotors for the charger SRTs are slotted from the factory, cost $70 years ago, can get them now for less. Hopefully a cheaper alternative comes from the aftermarket

I left a message with a e-bay sellar see what becomes of it.....if all the stud patterns are the same ,and they should, piece mailing a set of 12.6 inch and 12.4 inch shouldn't be that hard.......

 

[Helo58]

Well, I have waited to chime in on this forum again for a while to see how things turned out for others and to wait for more information to present itself. In the meantime and as expected, the consistently refuted "causes" still rear their ugly heads. "Warped rotors," "inferior Kia parts," etc., have all again and again been suggested. Many now even implicitly trust Kia techs because "they said so." Well, I guess that makes it a fact. Keep in mind that this same tech is the one joy-riding your car after a service, the one who forgets the crush washer on the oil drain plug, and the one that still thinks it is appropriate to turn/machine the rotors on a $50k car. This is not a Rio or a Sportage. This is a 12-second quarter mile, 4000+lb car, that NEEDS serious brakes. For those who don't know, you don't "turn" serious brakes. This is sweeping dust under the rug so to speak and does not properly or adequately address the problem. You have "traded the devil for a witch" by giving up braking force for smoothness if you turn the rotors. Now don't say you weren't told.

As stated before, this does not appear to be a caliper problem or a rotor problem. Most evidence points to a pad problem. I have been too busy enjoying my GT (with great brakes I might add) to actually keep up with the forum or this thread, but I am glad I have taken another look. I assure you that KIA now knows that there is a problem with the brake pads. The fine folks over at "Car and Driver" magazine pointed it out to them and put the true culprit on display for the entire world to see in their last Lightning Lap (12) testing. Here in an excerpt:

"But when we stomped the brake pedal, very little happened. Well, that's not exactly true. A big something happened. Without sufficient stopping power, the Stinger sailed into the grass outside Horse Shoe at 58mph. We got the hint: This wasn't the setup for track work. So we stopped lapping and started calling and emailing Kia. On the final day, its PR team delivered a Stinger GT fitted with European-spec pads, which, according to the company, you'll be able to get at dealerships for about $700. They worked, hauling the Stinger down from 133.8mph on the front straight." --Car and Driver

Please note that new car was mentioned as having new Euro-spec pads, not new rotors. $700 sounds about right for dealer pad replacements. Rotors and pads will be significantly more from the dealer. For those who have access to US/Euro/Asian-Pacific part numbers, it would be good to get a comprehensive list of all part numbers for the rotors and pads worldwide. If there is only one worldwide part number for rotors but multiple ones for pads, I would consider this issue closer to "solved."

Keep in mind, you don't have to "track" a car to put significant amounts of heat into crappy pads. A track will find a crappy pad very quickly, but several "street" scenarios can also reveal these differences over time. Two footed driving or an aggressive round trip through the full "Dragon" can also shine a poor light these pads. Rotor design, size, and material is FAR easier to determine than pad material. One pad will not please everyone simply because driving style and environment will differ wildly between extremes. The very fact that there is a European spec pad should tell you that this is true. It appears that these (US) pads simply do not handle heat build-up past a certain point. Once they reach this point, they are transferring pad material to the rotors unevenly. What happens from there would be harder to identify with specificity, but abnormal vibrations seems to be the common symptom.

If anyone is having their rotors replaced under warranty, I would highly suggest having the Euro-spec pads included as part of a comprehensive solution. Short of this or some change in your driving habits, the problem will likely return. If you are outside of the warranty period and warranty work is not an option for you, you will be better served in the long run to purchase new rotors and pads from the aftermarket once they become available. Do not "turn" the rotors on a lathe if you anticipate using your car in 7/10ths or higher driving. They will not work as good as new centerless ground rotors.

 

[rocket23]

^^ Agree, bad rotors are hard to come buy these days,imo......kia forte ( I am NOT comparing a singer with a forte) Has 20,000 miles...and the pads are at the change out mark....tell tale squeal sensor.
That tells me what kia ,and every other car maker does....uses cheap products just to get by the fshwa rules. If ya have to procur a lot of anything and then resell it as a package it makes sense to lower the cost of putting it together.........brake pads, wipers...I'm surprised they didn't go with the standard kumho tires.....wouldn't surprise me.

 

[Cazwizzle]

I have been too busy enjoying my GT (with great brakes I might add) to actually keep up with the forum or this thread, but I am glad I have taken another look.

Have you replaced your pads with something non-OEM (in US)? If so, please share!

 

[robz32]

The problem is also affecting Stingers in Korea as well. They already have aftermarket rotor and pad replacements available, but it is too pricey import due to shipping expense.

 

[Helo58]

Have you replaced your pads with something non-OEM (in US)? If so, please share!

No, I haven't replaced them. For one, the last time I checked aftermarket pads weren't available from any of my preferred pad manufacturers. This may have changed. Also, I just don't find myself driving this car as hard as my previous cars. My last car was a Lexus ISF and I drove it far more aggressively than this car. The ISF was setup more aggressively from the factory than the Stinger but compared to the M3/M4 the ISF was still more of a GT than those cars. After 3 years of driving the hard suspension, quick steering, loud exhaust, etc. of the ISF, I really find myself just enjoying the more compliant suspension, quieter cabin, and intentionally "reduced" pace of the Stinger.

In stock form, driving this car aggressively will easily overwork the suspension and brakes. I'm not complaining, I absolutely LOVE this car but I find myself embracing the "Autobahn" driving style rather than the "Nurburgring" driving style at this point in my life. Fortunately, for anyone with deep enough pockets, you can tweak this car to suit just about any driving style.

 

[rocket23]

Not available as of today from a preffered vendor on e-bay.....pads should be available from brembo, but for us 2.0 guys we need to wait or hope oem has better than stock.....sometimes they do.