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:
Setting compass zones
Set the compass zone corresponding to the vehicle's
geographic location so that the compass
Setting compass zones
Press the adjustment button for 3‑4 seconds.
The number of the compass zo ...
Symbols
Indicates precautions that must be followed
precisely in order to avoid the possibility of personal
injury and serious damage to the vehicle.
◄ Marks the end of a specific item of inf ...
A host of active safety systems reduce the risk of accidents
A selection of electronic assistance systems make an active contribution to
driving safety in the new BMW 3-Series, helping drivers to avoid collisions in
the first place. The functions of the mai ...
