Summer tires
Do not drive with a tire tread depth of less than 0.12 in/3 mm.
There is an increased danger of hydroplaning if the tread depth is less than 0.12 in/3 mm.
See also:
Tire Pressure Monitor TPM
The concept
The tire inflation pressure is measured in the
four mounted tires. The system notifies you if there is a significant loss of
pressure in one or
more tires.
Functional requirements
...
Deactivating HDC
Press the button again and the
LED goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h. ...
Interior motion sensor
For the sensor to function properly, the windows
and glass sunroof/panoramic glass sunroof
must be closed. ...