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 5 and speed rating 6.
- 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:
Vehicle
Activating/deactivating the automatic door locking feature
If you select the Automatic Door Lock: function, the vehicle is centrally locked
above a speed of around 9 mph (15 km/h).
For further ...
Vehicles with a "Minispare" emergency
spare wheel
– Lift the trunk floor up.
– Remove the "Minispare" emergency spare
wheel.
Example: vehicles with AIRMATIC and trailer tow
hitch
1 Folding wheel chock
2 Lug wrench
3 Alignment b ...
Tire pressure of 180 kPa (1.8 bar/
26 psi) is reached
– Switch off the tire inflation compressor.
– Unscrew the filler hose from the valve of
the faulty tire.
After use, excess TIREFIT may run out of
the filler hose. This could cause stains.
...