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:
Selecting the sorting order of the
names
Names can be displayed in a different order.
1. "Office"
2. "Contacts"
3. Open "Options".
4. "Display: last, first name" or "Display: first,
last nam ...
Open the traffic bulletins
1. "Navigation"
2. "Map"
3. "Traffic Info"
First the traffic bulletins for the calculated
route are displayed.
The traffic bulletins are sorted by their distance
...
For 520i and 528i: Check oil
level
The concept
The oil level is monitored electronically during
driving and shown on the Control Display.
If the oil level reaches the minimum level, a
check control message is displayed.
Displayi ...
