See also:

Cleaning the brake discs
Coatings of dirt and water on the brake discs may result in delayed brake function. This delay is minimized by cleaning the brake linings. Cleaning the brake pads is advisable in wet weather, prior ...

Engine Drag Control (EDC)
EDC helps keep the engine running if the wheels show a tendency to lock, e.g., when shifting down in the Geartronic manual shifting mode or while using the engine's braking function on a slipp ...

Tire designations
Federal law mandates that tire manufacturers place standardized information on the sidewall of all tires (see the illustration). The following information is listed on the tire sidewall: The tire ...