One problem related to brake disc rotor has been reported for the 2005 Mercedes Benz E320. The most recently reported issues are listed below.
My mercedes e 320 had a recall because of a defect in braking in 2006> I brought the car in to repair and it was the same. . I brought it back and they say it is the front rotor , which is not under warranty. The car has 16000 miles on a 2005. I do not believe the rotor could have a problem with such low miles . I think they are trying to not be responsible. . The rotors on a lease car should be warranted. . .