Q: Do the rotors needs to be replaced with the brake pads?

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I have a brake pad wear light that is illuminated on my dash. I called a mechanic who said you cannot replace the brake pads only on a Mercedes and that I also need to also replace the rotors. Is this true?

My car has 128000 miles.
My car has an automatic transmission.

All Mercedes manuals recommend replacing the brake pads and rotors in sets. The rotors cannot be resurfaced due to material used in the rotors. The rotors are made of softer materials than most vehicles and wear more and should be replaced as a set.

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