The concept

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

It maintains the speed that was set using the control elements on the steering wheel.

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

Do not use the system if unfavorable conditions Unfavorable conditions
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:

    Configuring the warning time
    After the warning function is switched on, the warning time can be set via the iDrive. For a late warning time, prewarning is deactivated. These settings have no effect on the time of the warni ...

    Tire damage
    General information Inspect your tires often for damage, foreign objects lodged in the tread, and tread wear. Notes Driving over rough or damaged road surfaces, as well as debris, curbs and oth ...

    Opening/closing the glass sunroof
    With the sliding visor open, proceed as described under Sliding visor. ...