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:
Opening
▷ Press the switch to the
resistance
point.
The window opens while the switch is held.
▷ Press the switch beyond the
resistance
point.
The window opens automatically.
Pressin ...
Context help - Owner's Manual to the
temporarily selected function
The relevant information can be opened directly.
Opening during operation via iDrive
To move directly from the application on the
Control Display to the options menu:
1. Press the
button or mo ...
Mobility
To ensure that you remain mobile at all times, this
chapter supplies you with important information
on the topics of fuels and lubricants, wheels and
tires, service, maintenance, and Roadside
...
