See also:

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 ...

Changing a wheel
Flat tire The "Roadside Assistance" section contains information and notes on how to deal with a flat tire. It also provides instructions on changing a wheel or mounting the spare wheel/ ...

DISTRONIC PLUS displays in the speedometer
When DISTRONIC PLUS is activated, one or two segments 2 in the set speed range light up. For design reasons, the speed displayed in the speedometer may differ slightly from the speed set ...