Close the windows and glasssunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption.
See also:
Tire identification marks
Knowledge of the labeling on the side of the tire makes it easier to identify
and choose the right tires.
Tire size
Speed code letter
Q = up to 100 mph or 160 km/h
T = up to 118 mph or 190 km/ ...
Malfunction
The warning lamp
comes on when the
system has failed.
A message appears on the Control
Display. More information ...