One problem related to brake disc caliper has been reported for the 2003 Mercedes Benz E500. The most recently reported issues are listed below.
Brakes squeal in consumer's 2003 Mercedes Benz 3500. The vehicle has been taken to the dealer several times for repair. The dealer has replaced the engine mount, updated software, replaced caliper,replaced front and rear brake pads and rotors as well as changed a spring clip. Problem still persist.