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:
Indications on the Control Display
EfficientDynamics
Information on fuel consumption and technology
can be displayed during driving.
1. "Vehicle Info"
2. "EfficientDynamics"
Displaying fuel consumption history ...
Telephone
...
Emergency Request
Requirements
► Equipment version with full preparation
package mobile phone.
An Emergency Request can be made, even
if no mobile phones are paired with the vehicle.
► BMW Assist i ...
