Summer tires
- Optionally, tires with a maximum speed of
over 149 mph (240 km/h) may have "ZR"
in the size description depending on the
manufacturer (e.g. 245/40 ZR 18).
The service specifications consist of load
bearing index A and speed rating B.
- If the size description of your tire includes
"ZR" and there are no service
specifications, ask the tire manufacturer in
order to find out the maximum speed.
If a service specification is available, the
maximum speed is limited according to the
speed rating in the service specification.
Example: 245/40 ZR 18 97 Y. In this
example, "97 Y" is the service specification.
The letter "Y" represents the speed rating
and the maximum speed of the tire is
limited to 186 mph (300 km/h).
- Every tire that has a maximum speed above
186 mph (300 km/h) must have "ZR" in the
size description and the service
specification must be given in brackets.
Example: 275/40 ZR 18 (99 Y). The speed
rating "(Y)" shows that the maximum speed
of the tire is above 186 mph (300 km/h).
Ask the tire manufacturer to find out the
maximum speed.
See also:
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary.
Rthe engine is running.
Rthe driver's door is closed or if your seat belt is fastened.
Rthe electric parking brake is released.
...
Change of address or change of ownership
In the event of a change of address, please send us the "Change of Address Notice"
found in the Service and Warranty Information Booklet, or simply call the Mercedes-Benz
Customer Assist ...
Making adjustments in 1 mph (Canada:1 km/h) increments
► Briefly press the cruise control lever
to the
pressure point, up 1 for a higher speed or
down 2 for a lower speed.
The last speed stored is increased or
reduced. ...