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 automatically
Select transmission position R with the engine
running.
The Top View and PDC images are displayed if
the system is switched on via iDrive. ...
Storing
Storing
1. Switch on the radio ready state or the ignition
2. Set the desired seat, exterior mirror and
steering wheel positions.
3. Press the button. The LED in
the
button lights up.
4. ...
Service data in the remote control
Information on the required maintenance is continuously
stored in the remote control. Your
service center will read out this data and suggest
the right array of service procedures for your vehic ...
