Professional navigation system
If the vehicle is equipped with a Professional navigation system, the system adapts the acceleration and deceleration behavior of the vehicle to the road on which you are currently driving.
To ensure that the system has the latest information on the course of the road, use the most recent version of the navigation data.
If the vehicle position is unknown, e.g., if you have left the region covered by the map, the navigation system ceases to influence vehicle behavior.
See also:
Tire identification marks
Tire size
255/50 R 19 103 Y
255: nominal width in mm
50: aspect ratio in %
R: radial tire code
19: rim diameter in inches
103: load rating, not for ZR tires
Y: speed rating, before the R on ZR ...
System limits
Personal responsibility
The system cannot serve as a substitute
for the driver's personal judgment of the traffic
situation.
In the event of a warning, do not jerk the steering
wheel, as you ...
Opening the tone settings in
the Options menu*
1. "CD/Multimedia" or "Radio"
2. If necessary, select additional entries, for example,
"FM" or "CD/DVD".
3. Open "Options".
4. "Tone"
...