Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced 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 S430
Average mileage: 79,000 (12,000–144,000)
12 people reported this problem
2006 Mercedes-Benz S430 12,000 mi, Visitor
Still have 90% brake pad life on them but brake are squeaking. The dealership put on a cream to stop the squeaking and It only help for three month. I told my wife put on ear pugs or pay $2000.
I know my front and back brake pads need replaced at 80,000 miles, but apparently my original rotors got so worn out that I had to have them replaced as well. I had new slotted rotors put on. Dealer charge = $680 for front brake pads and rotors
Breaks always squeal. Replaced pads many times.