What is the life expectancy of the brakes on a 1999 Lexus LS400 under
normal or average driving conditions?

I bought the car in 2002 with 21,000 miles on it. At 48,000, the
service department at the dealership said the front brakes were at 2mm
and replaced them. The rear brakes were still at 5mm.

What is the "mm" reading of new brakes?


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