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:
Buttons on the remote control
1 Unlocking
2 Locking
3 Opening the trunk lid
4 Panic mode*, headlamp courtesy delay feature ...
Driving through water
Drive though calm water only if it is not deeper
than 9.8 inches/25 cm and at this height, no
faster than walking speed, up to 6 mph/10 km/h.
Adhere to water depth and speed
limitations
Do no ...
BMW EfficientDynamics: BMW 5-Series increasing the lead.
BMW EfficientDynamics technologies are featured in appropriate combinations
on each model, including features such as Brake Energy Regeneration, Electric
Power Steering, a gearshift point indicato ...
