Mercedes-Benz GL-Class: Activating/deactivating DSR - DSR (Downhill Speed Regulation) - Off-road driving systems - Driving and parking - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Activating/deactivating DSR

Activating

DSR can only be activated if you are driving no faster than 20 mph (30 km/h).

Vehicle without the Off-Road Pro Engineering

Vehicle without the Off-Road Pro Engineering package

Vehicle with the Off-Road Pro Engineering package

Vehicle with the Off-Road Pro Engineering package

Press button 1.
Indicator lamp 2 lights up.

The DSR symbol and a message, such as the following, appear in the multifunction display:

If the speed that is being driven is too high,

If the speed that is being driven is too high, the DSR symbol and the Max. speed 20 mph (Canada: 30 km/h) message appears in the multifunction display.

Deactivating

Press button 1.
Indicator lamp 2 goes out.

The DSR symbol appears in the multifunction display with the Off message.

DSR is deactivated automatically if you are driving faster than 21 mph (Canada:

35 km/h). The DSR symbol appears in the multifunction display with the Off message.

You also hear a warning tone.

    Important safety notes
    DSR is an aid to assist you when driving downhill. It keeps the speed of travel at the speed selected on the on-board computer. The steeper the downhill gradient, the greater the DSR braking eff ...

    Changing the set speed whilethe vehicle is in motion
    When DSR is activated, the control speed can be changed to a value between 3 mph and 10 mph (Canada: between 4 km/h and 18 km/h) during the journey. ► To increase or decrease in 1 mph (Ca ...

    See also:

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    Tire pressure loss warning system(Canada only)
    Important safety notes While the vehicle is in motion, the tire pressure loss warning system monitors the set tire pressure using the rotational speed of the wheels. This enables the system to det ...