Tire tread
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.
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.
Minimum tread depth

Wear indicators are distributed around the tire's circumference and have the legally required minimum height of 0.063 in/1.6 mm.
They are marked on the side of the tire with TWI, Tread Wear Indicator.
See also:
Switching on/off directly
1. "Settings"
2. "Climate"
3. "Activate parked-car vent."
The symbol on the automatic
climate control
flashes if the system is switched on. ...
Controls
1 Change entertainment sources
2 Volume, on/off
3 Programmable memory buttons or radio station buttons
4 Change station/track
5 Eject CD/DVD
6 CD/DVD drive
7 Change wave band ...
Supplementary text messages
Additional information on the Control Display,
e.g., on the cause of a malfunction or the required
action, can be called up via Check Control.
The text of urgent messages is displayed automatica ...
