Certain cars replacing rotors is a must do thing when doing pads. The rotors were made soft so they do not warp as easily. Like Mercedes the rotors maybe just above specs when the pads need replacement but expect them to be far under before the pads get to the halfway point. Good thing for the most part (after looking around) the German rotors are relatively inexpensive.

I notice on the cheap Chinese rotors tend to work ok if you cut them again after bedding in the pads + 50 or so miles. A lot of work if you ask me though.

Allen Here's a novel idea, let's not throw a bunch of parts at the car hoping it will fix the problem and instead spend a little time diagnosing it first. Life was a little easier when I was just a wrench.