Kickdown

it is not Vehicles with an AMG engine: it is not possible to use kickdown in manual drive program M.

You can also use kickdown for maximum acceleration in manual drive program M.

depress the accelerator pedal. Vehicles for USA: fully depress the accelerator pedal.
The transmission shifts to a lower gear depending on the engine speed.
the accelerator pedal beyond the pressure point. Vehicles for Canada: depress the accelerator pedal beyond the pressure point.
The transmission shifts to a lower gear depending on the engine speed.

change gear During kickdown, you cannot change gear using the steering wheel paddle shifters or the selector lever.

    See also:

    Important safety notes
    WARNING Do not turn off the engine before the vehicle has come to a complete stop. With the engine not running, there is no power assistance for the brake and steering systems. In this case, ...

    Tires
    Display messages Possible causes/consequences and Solutions USA only: The yellow tire pressure monitor warning lamp (pressure loss/ malfunction) is lit. Risk of accid ...

    Vehicle data, GL 450
    The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...