My records (from the PO) show that they replaced pads, rotors, and sensors in 2011 at 64k miles. I am at 121k miles now, and have a hard time believing that rotors could need replacing after 57,000 miles, especially rear rotors which hardly get used. I get that new rotors are only $85 from FCP, but that seems a wasteful and needless expense.
The only time I have ever had a bad experience with turning rotors was when 18-y/o me ill-advisedly had a shop resurface a warped rotor, thinking they would get the warp out (it did not).
Does BMW specify a minimum thickness for resurfacing somewhere, or do they just tell you to replace the rotor every time you replace the pad?
Edit: answered my question. 10.4mm is the minimum thickness. Will see if I can get a caliper over it tonight without taking the wheels off.
https://www.pelicanparts.com/techart...eplacement.htm