The brakes may begin to squeak at about the 50 percent wear point. This is due to the size and material used for the brake pads and rotors. The brake rotor surfaces become uneven, causing a lip to form at the outer edge. This will generally require replacement of the rotors when the pads are worn (pad life varies depending on driving style and terrain).
Squeaking/Worn Brake Pads May Require Rotor Replacement Also on Mercedes-Benz 300SL
Average mileage: 70,000 (70,000–70,000)
5 people reported this problem
1991 Mercedes-Benz 300SL 70,000 mi, Visitor
Large lip around edge of brake rotor discovered when replacing brake pads. Replaced rotors.