The concept

The system is functional at speeds beginning at approx. 20 mph/30 km/h.

The speed specified using the lever on the steering column is maintained.

The system brakes on downhill gradients if engine braking action is insufficient.

Do not use the system if unfavorable conditions Do not use cruise control
Do not use the system if unfavorable conditions make it impossible to drive at a constant speed, for instance:

▷ On curvy roads.
▷ In heavy traffic.
▷ On slippery roads, in fog, snow or rain, or on a loose road surface.

Otherwise, you could lose control of the vehicle and cause an accident.◀

    See also:

    Setting the voice dialog
    You can set whether the system should use the standard dialog or a shorter version. In the shorter variant of the voice dialog, the announcements from the system are issued in an abbreviated fo ...

    Use coasting conditions
    When approaching a red light, take your foot off the accelerator and let the vehicle coast to a halt. On a downhill gradient, take your foot off the accelerator and let the vehicle roll. The flo ...

    Supplementary text messages
    You can call up more information, e.g., on the cause of a malfunction and on how to respond, via Check Control. In urgent cases, this information will be shown as soon as the corresponding lamp ...