Braking abnormal sound formation:
    1. First, poor heat, causing the temperature is too high, the formation of hard points caused by crossover. There is a harsh noise when braking.
    2. Braking contact disc contact is not uniform, resulting in brake disc and disc contact brake noise.
    3. normal alarm.
    In view of the above problems, we must first clear the fault, or normal alarm. When the brake pads and brake discs exceed the manufacturer's specified period of use or the use of the limit, please immediately replace the brake disc. Please note: 1. Some manufacturers will use the sensor to report the driver to replace the brake disc. 2. Some manufacturers will use sharp contact, there is noise to remind the driver to replace the brake disc.
    Brake disc replacement:
    The replacement of the brake disc is not dependent on the use of kilometers, the brake disc replacement is based on the manufacturer to develop the use of data and the actual wear and tear conditions.
    For example:
    Treatment of S350 abnormal exclusion steps:
    As the S350 brake cylinder fixed on the brake back piece of the support pin is easy to roll, so that fixed on the back of the contact plate contact plate, resulting in braking or traffic abnormal sound. The use of hammering fixed cap head to eliminate the back piece rolling phenomenon, thus eliminating the abnormal sound.
    Mercedes-Benz brakes by the brake disc cylinder and brake discs, with particular emphasis on the brake disc with air holes.