BMW i4 GRAN COUPE Owner's Manual page 303

Tire tread
Safety information
Warning
If the tire tread depth is too low, driving safety
may be impaired in critical situations such as
aquaplaning or slush on the road. There is
a risk of accident. The tire tread depth may
not fall below 0.12 in/3 mm for summer tires
and 0.16 in/4 mm for winter and all-season
tires, or observe the statutory regulations on
minimum tread depth.
Minimum tread depth
The tire manufacturer's wear indicators are
distributed over the tire circumference. These
indicators have a height of min. 0.06 in/1.6 mm
and serve as an indicator for tire tread wear.
The positions of the wear indicators are
marked on the tire sidewall with TWI, Tread
Wear Indicator.
Tire damage
General information
Check your tires regularly for damage, foreign
bodies lodged in the tread, and tread wear.
Indications of tire damage or another vehicle
malfunction:
Online Edition for Part no. 01405A88AA4 - VI/23
Wheels and tires
▷ Unusual vibrations.
▷ Unusual tire or running noises.
▷ Unusual handling such as a strong ten-
dency to pull to the left or right.
▷ Uneven wear pattern, e.g., increased wear
in the area of the tire shoulder.
Damage can be caused by the following situa-
tions, for instance:
▷ Driving over curbs.
▷ Road damage.
▷ Tire pressure too low.
▷ Vehicle overloading.
▷ Incorrect tire storage.
Safety information
Warning
Damaged tires can lose tire inflation pres-
sure, which can lead to loss of vehicle con-
trol. There is a risk of accident. If tire dam-
age is suspected while driving, immediately
reduce speed and stop. Have wheels and
tires checked. To do so, drive carefully to
an authorized service center or another quali-
fied service center or repair shop. Have the
vehicle towed or transported as needed. Do
not repair damaged tires, but have them re-
placed.
Warning
Driving over curbs, road damage or other ob-
stacles can damage wheels, tires and chassis
components. Larger wheels have a smaller
tire cross-section. The smaller the tire cross-
section, the higher the risk of tire damage.
There may be a risk of accidents and risk of
damage to property. If possible, avoid driving
over curbs, road damage or other obstacles,
or drive over them slowly and carefully.
MOBILITY
303
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