Distance warning function (vehicleswith DISTRONIC)

This function provides a warning from a speed of approximately 20 mph(30 km/h), if:

for a period of several seconds, the distance to the vehicle in front is too short for the speed at which you are traveling.

The instrument cluster will light up. distance warning lamp in the instrument cluster will light up.

you are rapidly approaching the vehicle in front. An intermittent warning tone will then sound and the lamp will light up in the instrument cluster. distance warning lamp will light up in the instrument cluster.

You must apply the brakes yourself in order to maintain the appropriate distance to the vehicle in front and prevent a collision.

WARNING If the distance warning lamp 
If the distance warning lamp
in the in the instrument cluster comes on while driving and/or an intermittent warning sounds, immediate attention on the part of the driver is required. As required by the traffic situation, apply the brakes and navigate around a possible obstacle. However, do not drive by relying on the distance warning function, as this will result in an emergency braking application. This will not always enable you to avoid a collision, especially when traveling on varying road surface conditions and with varying driver reaction.
Complex driving situations are not always fully recognized by the distance warning function. This could result in wrong or missing distance warnings.

To activate/deactivate: activate or deactivate the distance warning function in the on-board computer.

After activation, the displayed in the lower multifunction symbol is displayed in the lower multifunction display.

    See also:

    Useful information
    This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences ...

    Inserting a CD/DVD
    The CD/DVD drive is located in the center behind the front seats. 1 Disc slot 2 Eject button The CD/DVD drive is a single disc drive. If there is already a disc inserted, this must be eje ...

    Turn signal lamp (halogen headlamps)
    Due to their location, have the bulbs in the left-hand headlamp changed at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center. •► Switch off the lights. •► ...