BMW X3 2018 Owner's Manual page 304

MOBILITY
Run-flat tires
If you are already using run-flat tires, for your own
safety you should replace them only with the
same kind. No spare tire is available in the case
of a flat tire. Further information is available from
a dealer's service center or another qualified
service center or repair shop.
Rotating wheels between axles
Different wear patterns can occur on the front
and rear axles depending on individual driving
conditions. The tires can be rotated in pairs be‐
tween the axles to achieve even wear. Further in‐
formation is available from a dealer's service cen‐
ter or another qualified service center or repair
shop. After rotating, check the tire pressure and
correct, if needed.
Rotating the tires is not permissible on vehicles
with different tire sizes or rim sizes on the front
and rear axles.
Storing tires
Air pressure
Do not exceed the maximum tire inflation pres‐
sure indicated on the side wall of the tire.
Storage
Store wheels and tires in a cool, dry and dark
place.
Always protect tires against all contact with oil,
grease, and solvents.
Do not leave tires in plastic bags.
Remove dirt from wheels or tires.
Run-flat tires
Concept
Run-flat tires permit continued driving under re‐
stricted conditions even in the event of a com‐
plete loss of tire inflation pressure.
304
Wheels and tires
Online Edition for Part no. 01402989843 - II/18
General information
The wheels consist of tires that are self-support‐
ing, to a limited degree, and possibly special
rims.
The support of the sidewall allows the tire to re‐
main drivable to a restricted degree in the event
of a tire inflation pressure loss.
Follow the instructions for continued driving with
a flat tire.
Safety information
WARNING
Your vehicle handles differently with a run-flat
with no or low inflation pressure; for instance,
your lane stability when braking is reduced,
braking distances are longer and the self-steer‐
ing properties will change. There is a risk of an
accident.
Drive moderately and do not exceed a speed of
50 mph/80 km/h.
WARNING
Heavy trailers can start swinging when continu‐
ing to drive with a flat tire. There is a risk of ac‐
cidents or risk of damage to property. Do not
exceed a speed of 35 mph/60 km/h when driv‐
ing with a trailer and a flat tire. Immediately
brake in the case of swinging. Apply necessary
steering corrections as carefully as possible.