See also:

Winter tires
Do not drive with a tire tread depth of less than 0.16 in/4 mm. Below a tread depth of 0.16 in/4 mm, tires are less suitable for winter operation. ...

Convertible: rollover protection system
The rollover protection system is activated automatically in the event of an accident, a critical driving situation, an extreme tilt in the car's longitudinal axis or upon loss of ground conta ...

Message when the system was not reset
The yellow warning lamp lights up. A message appears on the Control Display. The system detected a wheel change but was not reset. Warnings regarding the current tire inflation pressure are ...