See also:

Important safety notes
WARNING   The PARKTRONIC is a supplemental system. It is not intended to, nor does it replace, the need for extreme care. The responsibility during parking and other critical maneuvers ...

Tire pressure of cold tires
The tires are cold: - if the vehicle has been parked without direct sunlight on the tires for at least three hours and - if the vehicle has not been driven more than 1 mile (1.6 km). ...

Even more effective brake discs and brake booster
The brake system helps to reduce the unsprung masses through the use of floating (four- and six-cylinder models) or fixed front callipers with housings in aluminium or aluminium composite design a ...