Your Mercedes 300E brake rotors have been built for tough performance. Installed in every wheel of your car, brake rotors spin in sync with them and encounter the same damaging elements that your wheels do – dust, debris, and water. It is for these reasons that the rotors have been carefully constructed. Engineers have molded them with much strength to enable them to withstand all the possible hazards of daily driving while making sure that their primary function is efficiently performed.
Braking temperature is important for stopping efficiency. But since brake fading occurs due to high braking temperature, there is a need to reduce the heat level when the pad rubs against the rotor’s surface. To enable this, some rotors are designed with drilled holes and slots, through which the heat produced when braking easily escapes and the temperature is kept low. These designs also serve as passageway not only for the heat but also for water. Fluid components may lessen the grip of the pad on the rotors. Hence, the water needs to be vented for a effective and safe stop.