That's typical of a warped brake rotor, and common on any brand and model. In the past that was solved with a simple machining of the rotors, (both sides at the same time to maintain balanced braking), but for quite a while rotors have been so thin to save weight that with just a little normal wear, they're too thin to be machined. There is always a published legal minimum thickness a rotor can be machined to, and another slightly thinner limit it can be allowed to wear to. No professional who values his reputation will risk a lawsuit by cutting a rotor too thin. Also, new rotors today are extremely inexpensive compared to 20 or 30 years ago.
One word of warning though. Most new rotors come from China. There is nothing wrong with their quality, but when we make parts out of cast iron, we toss them aside to "age" for 90 days before they get their final machining. In China, they cast 'em, machine 'em, pack 'em, and ship 'em, then they age on your car. In the vast majority of cases, they develop the same warpage as you have now, but not to that extreme. It is perfectly acceptable to go back to the same shop that did the work, and they should be willing to take a light cut on them to true them up for you. That warpage rarely occurs a second time. The people who have the most trouble are those who demand brand new rotors under warranty, then those too warp in about three months. If they'd just let the mechanic machine them lightly, the problem would be solved.
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Sunday, July 11th, 2021 AT 4:24 PM
