Uniform Tire Quality Grading Standards
A uniform standard to grade the quality of tires with regards to tread quality, tire traction and temperature characteristics. Ratings are determined by tire manufacturers using U.S. government testing procedures. The ratings are molded into the sidewall of the tire.
See also:
Checking the tire pressures
Important safety notes
WARNING
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adversely
affect handling ...
Deactivating/activating PARKTRONIC
1 Indicator lamp
2 To deactivate/activate PARKTRONIC
If indicator lamp 1 lights up, PARKTRONIC is
deactivated. Active Park Assist is then also
deactivated.
PARKTRONIC is automatically ac ...
Switching on/off
The steering-wheel heating heats the leather
areas of the steering wheel
•► Make sure that the SmartKey is in position
2 in the ignition lock.
•► To switch on/off: turn the lever i ...