See also:

Only refill the diesel exhaust fluid yourself in exceptional circumstances
To be able to reach the nearest service center with your vehicle, you may refill the diesel exhaust fluid yourself, making sure to heed the warning notices specified below. Handling diesel ex ...

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 engin ...

Signal tones
When approaching an object, an intermittent tone is sounded that indicates the position of the object. For example, if an object is detected to the left rear of the vehicle, a signal tone sounds ...