I have just put my car in for a d type service and been advised that my front and rear discs require replacement as well as the pads the mileage is only 45000 and I find this hard to accept, any other model of car that I have owned only ever required pads? when I question the service manager I was informed that the pads and discs require replacement ever 25000 miles, as this vechicle was purchased from new 2years passed December I am of the opinion that this should be under warranty can anyone give me advice so I can have a meaningful discussion with the mercedes dealership?