How often/# miles should you replace brake pads and rotors.
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2006 Mercedes-Benz E350 Question: How many miles before you should need to replace front brake pads and rotors?
Answer #1JParsons September 12, 2010, 22:08Journeyman
Rotors in M-Bs are usually replaced with pads when the pads are worn out because the thickness of the rotors will not last the life of the replacement pads. I have seen vehicles with as low as 30k mi or as high as 60k mi need brake replacement. Honestly, their life depends on your driving style.