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Controls
103
Reference At a glanceDriving tipsCommunications NavigationEntertainmentMobility
Message with low tire inflation
pressure
The warning lamp lights up yellow. A
message appears on the Control Dis-
play. In addition, an acoustic signal
sounds.
> There is a flat tire or a major loss in tire infla-
tion pressure.
> The system was not reset after a wheel
change and thus issues a warning based on
the inflation pressures initialized last.
Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steering
maneuvers. Do not exceed a speed of 50 mph/
80 km/h.
If the vehicle is not equipped with run-flat
tires as provided at the factory, refer to
page 249, do not continue driving. Continuing
to drive with a flat tire could cause severe acci-
dents.<
Continued driving with a flat tire
Possible driving distance with complete loss of
tire inflation pressure:
> With a light load:
1 to 2 persons without luggage:
Approx. 155 miles/250 km
> With a medium load:
2 persons, cargo area full, or
4 persons without luggage:
Approx. 95 miles/150 km
> With a full load:
4 or more persons, cargo area full:
Approx. 30 miles/50 km
Drive reservedly and do not exceed a
speed of 50 mph/80 km/h.
A loss of tire inflation pressure results in a
change in the handling characteristics, e.g.
reduced lane stability during braking, a longer
braking distance and altered self-steering prop-
erties.<
Vibrations or loud noises while driving can
indicate complete failure of the tire.
Reduce your speed and stop; otherwise, pieces
of the tire could come loose and cause an acci-
dent. Do not continue driving, and contact your
BMW Sports Activity Vehicle Center.<
Message when not reset
The yellow warning lamp lights up. A
message appears on the Control Dis-
play.
The system is not reset, e.g. after a wheel
change.
Check the tire inflation pressure and reset the
system, refer to page 102.
Malfunction
The yellow warning lamp flashes and
then lights up continuously. The tires
are displayed in gray on the Control
Display. No flat tire can be detected.
Display in the following situations:
> Malfunction:
Have the system checked
> If a wheel without TPM electronics is
mounted, e.g. a compact wheel
*
> Interference due to systems or devices that
use the same radio frequency:
The system automatically reactivates once
it is outside of the field of interference.
Explanation according to the NHTSA/
FMVSS 138 Tire Pressure Monitoring
Systems
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recommended
by the vehicle manufacturer on the vehicle plac-
ard or tire inflation pressure label. (If your vehi-
cle has tires of a different size than the size indi-
cated on the vehicle placard or tire inflation
pressure label, you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire pres-
sure telltale when one or more of your tires is
significantly underinflated. Accordingly, when
the low tire pressure telltale illuminates, you
should stop and check your tires as soon as
Online Edition for Part no. 01 41 2 604 009 - © 03/10 BMW AGOnline Edition for Part no. 01 41 2 604 009 - © 03/10 BMW AG
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