05 s500, MB dealer says my front brakes are @10mm and need to be replaced w/ new rotors for $650. two questions How many miles can i safely go until they need to be replaced(lease is expiring soon) and, does that seem like a fair price? Thanks

Won't they ding you on the lease return if you turn it back in with thin brake pads? I don't know if that's a fair price; most of it is certainly labor.

Until the brakes light illuminates.
Yes, fair price. Considering this is an MB dealer.

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'06 E320 CDI
'17 Corvette Stingray Vert

Not to mention if you drive it into the back of a bus because the brakes are shot...

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1991 300 SEL
218,000 Km

"Xsbank's rules of mechanical intervention: Always go for the easiest solution first; 90% of what ails a gasoline engine is ignition; After that its all a WAG."