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:
Child seat security
Child seat security
The rear safety belts
▷ BMW X5: all safety belts of the 2nd and 3rd row seats
▷ BMW X6: all safety belts of the 2nd row seats
And the safety belt for the front ...
BMW Maintenance System
The BMW Maintenance System supports the preservation of the traffic and operating
safety of your BMW. The objective is to optimize efforts with respect to minimal
vehicle maintenance costs.
If ...
Maintenance
Maintain the vehicle regularly to sustain the road safety, operational reliability
and the New Vehicle Limited Warranty.
Specifications for required maintenance measures:
> BMW Maintenance syst ...
