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Replacement of Brake Pads and Rotors (Front)

(2008 Mercedes-Benz SL550)
in Sanford, FL on January 12, 2011
Dealer advises that front brake pads and rotors need to be replaced. Car has less than 30,000 miles. This doesn't seem like it should be necessary. What questions can I ask to verify the necessity of this repair? Thanks.
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Popular Answer
on January 12, 2011
Ask why. They should be able to tell you how many millimeters pad material is left. Ask to be shown, if they get huffy, there may be a little funny biz going on. Not uncommon.
Some talk in percentages but ask for mm's. 1 mm is definitely time to do the deed. They are at least 10mm thick when new.
Some brakes wear out quick, some last maybe 85k miles. Depends largely on driving habits and materials. If the brakes shudder when applied, the discs (rotors) are warped and need machining or replacement (and new pads). If the pads are worn down badly, it's time for pads and preferably machine or replace rotors. I worked MBZ and BMW many years ago and the pads wore quickly but you could reuse the rotors without machining 2 or 3 times. It was due to using soft pad materials which give good performance but don't last too long. Not bad. I don't know if the newer brakes can be treated that way anymore. I think probably so.
Maybe you'd like to find an independent Mercedes specialist. Here's a directory link for you:
on January 12, 2011
Thanks, Superbob! Appreciate the info...I'll ask some more questions before making a decision. I'm told that the brakes and tires wear much more quickly on many of the MB models and it's in exchange for the high performance the car offers. It's be nice if they told you this before you bought the car, huh? Appreciate the help...have a great day! :)
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