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:

    DEF refill bottle
    DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if over ...

    Adjusting the seats electrically
    1 Head restraint height 2 Seat cushion angle 3 Seat height 4 Seat fore-and-aft adjustment 5 Backrest angle Vehicles with memory function: if PRE-SAFE ® has been triggered, the frontpasse ...

    Increasing the volume
    In some cases, the volume of the AUX device may be quieter or louder, or the usual maximum possible volume cannot be reached. On some devices, it is possible to adjust the volume separately. I ...