Low outside temperatures

DEF freezes at a temperature of approximately 12 °F (–11 °C). The vehicle is equipped with a DEF preheating system when it leaves the factory. Winter operation is therefore also guaranteed at temperatures below 12 °F (–11 °C).

    See also:

    Washing by hand
    Carefully remove all deposits of road salt as soon as possible when driving in winter. Also, clean the insides of the wheels when washing the underbody of the vehicle. •► Do not use hot wa ...

    Exterior
    Measuring an inch shorter than the BMW X5 and 3.6 inches shorter than the RX 330, the four-door M-Class is 182.6 inches long overall and rides on a 111-inch wheelbase. At 71.7 inches tall, the M-C ...

    M+S tires
    At temperatures below 45 ‡(+7 †), use winter tires or all-season tires. Both types of tire are identified by the M+S marking. Only winter tires bearing the snowflake symbol in addition to the M+ ...