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  • A-Class
  • Compact saloon
  • 03/2018
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Operating Active Distance Assist DISTRONIC
WARNING Risk of accident if detection function of Active Distance Assist DISTRONIC is impaired
Active Distance Assist DISTRONIC does not react or has a limited reaction:

  • when driving on a different lane or when changing lanes

  • to pedestrians, animals, bicycles or stationary vehicles, or unexpected obstacles

  • to complex traffic conditions

  • to oncoming vehicles and crossing traffic

As a result, Active Distance Assist DISTRONIC may neither give warnings nor intervene in such situations.

Always observe the traffic conditions carefully and react accordingly.
WARNING Risk of accident from acceleration or braking by Active Distance Assist DISTRONIC
Active Distance Assist DISTRONIC may accelerate or brake in the following cases, for example:

  • If the vehicle pulls away using Active Distance Assist DISTRONIC.

  • If the stored speed is called up and is considerably faster or slower than the currently driven speed.

  • If Active Distance Assist DISTRONIC no longer detects a vehicle in front or does not react to relevant objects.

Always carefully observe the traffic conditions and be ready to brake at all times.
Take into account the traffic situation before calling up the stored speed.
WARNING Risk of accident due to insufficient deceleration by Active Distance Assist DISTRONIC

Active Distance Assist DISTRONIC brakes your vehicle with up to 50 % of the maximum possible deceleration. If this deceleration is not sufficient, Active Distance Assist DISTRONIC alerts you with a visual and acoustic warning.

In these cases, adjust your speed and keep a sufficient distance.
Brake the vehicle yourself and/or take evasive action.
WARNING Risk of accident due to Active Speed Limit Assist adapting the vehicle's speed

The speed adopted by Active Speed Limit Assist may be too high or incorrect in some individual cases, such as:

  • In the wet or in fog

  • When towing a trailer

Ensure that the driven speed complies with traffic regulations.
Adjust the driving speed to suit current traffic and weather conditions.
Requirements:

  • The vehicle has been started.

  • The electric parking brake is released.

  • ESP® is activated and is not intervening.

  • The transmission is in position .

  • All doors and the bonnet are closed.

  • Check of the radar sensor system has been successfully completed.

  • Parking Assist PARKTRONIC is not being used to park the vehicle or to exit from a parking space.

  • The vehicle does not skid.

Switching between Active Distance Assist DISTRONIC and the limiter
Press button .
Activating the variable limiter or Active Distance Assist DISTRONIC
To activate without a stored speed:
press rocker switch up (SET+) or down (SET-), or press rocker switch up. Remove your foot from the accelerator pedal (Active Distance Assist DISTRONIC).

The current driven speed is stored and maintained (Active Distance Assist DISTRONIC) or limited (variable limiter) by the vehicle.

or
To activate with a stored speed:
press rocker switch up. Remove your foot from the accelerator pedal (Active Distance Assist DISTRONIC).

If rocker switch is pressed up twice while driving, Active Distance Assist DISTRONIC or the variable limiter is activated with the speed restriction displayed in the instrument cluster.

Accepting the displayed speed restriction when Distance Assist DISTRONIC or the limiter is activated
Press rocker switch (RES) up.

The speed limit displayed in the instrument cluster is adopted as the stored speed. The vehicle adapts its speed to that of the vehicle in front, but only up to the stored speed.

Pulling away with Active Distance Assist DISTRONIC
Remove your foot from the brake pedal.
Press rocker switch (RES) up.
or
Depress the accelerator pedal briefly and firmly.

The functions of Active Distance Assist DISTRONIC continue to be carried out.

Deactivating Active Distance Assist DISTRONIC
WARNING Risk of accident due to Active Distance Assist DISTRONIC still being activated when you leave the driver's seat

If you leave the driver's seat while the vehicle is being braked by Active Distance Assist DISTRONIC only, the vehicle can roll away.

Always deactivate Active Distance Assist DISTRONIC and secure the vehicle to prevent it from rolling away before you leave the driver's seat.
Press rocker switch (CNCL) down.

If you brake, deactivate ESP® or if ESP® intervenes, Active Distance Assist DISTRONIC is deactivated.

Increasing or reducing the speed
Press rocker switch up (SET+) or down (SET-) to the pressure point.

The stored speed is increased or reduced by 1 km/h.

or
Press and hold rocker switch up/down to the pressure point.

The stored speed is increased or reduced in increments of 1 km/h.

or
Press rocker switch beyond the pressure point.

The stored speed is increased or reduced by 10 km/h.

or
Press rocker switch beyond the pressure point and hold.

The stored speed is increased or reduced in increments of 10 km/h.

Reducing or increasing the specified distance from the vehicle in front
To increase the specified distance:
press rocker switch down.
To reduce the specified distance:
press rocker switch up.
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