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).Google+
Car Problem Reports
Mercedes-Benz CLS550 Replace Brake Rotors When Pads are Worn and Squeaking
Mercedes-Benz CLS550 Problem
Average Mileage: 49,000 mi (35,000 mi - 70,000 mi)
Visitor, 2009 Mercedes-Benz CLS550, 70,000 mi
Annyoing squeaking breaks are not worned.
Visitor, 2008 Mercedes-Benz CLS550, 52,000 mi
My fromt Rogers are groove deep and squek. I will get brembo drilled Roter.
Visitor, 2007 Mercedes-Benz CLS550, 39,000 mi
The braked squeal like a pig. I just also developed a strong gas smell emanating from the right side of the car.
Brakes replace 10K miles ago, now starting to squeak when backing up and starting stopping (from a low speed).