BMW X3 M, Руководство пользователя

Страница: 337 / 396

Measure
1. Reduce the vehicle speed. Do not exceed a
speed of 80 mph/130 km/h.
2. At the next opportunity, for instance at a filling
station, check the tire inflation pressure in all
four tires and correct if necessary.
3. Reset the system.
If there is a significant tire pressure
loss
Message
A yellow warning light is illuminated in
the instrument cluster.
In addition, an icon with the affected tire appears
in a Check Control message on the Control Dis‐
play.
Icon Possible cause
There is a flat tire or a major tire pres‐
sure loss.
No reset was performed for the sys‐
tem. The system issues a warning
based on the tire inflation pressures
stored during the last reset.
Measure
1. Reduce your speed and stop cautiously.
Avoid sudden braking and steering maneu‐
vers.
2. Read the description on What to do in case of
a flat tire.
Actions in the event of a flat tire, refer to
page
337 .
Actions in the event of a flat tire
1. Identify the damaged tire.
Check the tire pressure in all four tires, for in‐
stance using the tire pressure display of a flat
tire kit.
For tires with special approval: if the tire pres‐
sure in all four tires is correct, the Tire Pres‐
sure Monitor may not have been reset. In this
case, perform the reset.
If tire damage cannot be found, contact a
dealer’s service center or another qualified
service center or repair shop.
2. Repair the flat tire, e.g., with a flat tire kit or by
changing the wheel.
Use of sealing compound, for instance from
the flat tire kit, may damage the wheel elec‐
tronics. Have the electronics replaced at the
next opportunity.
System limits
Temperature
The tire inflation pressure depends on the tire's
temperature.
Driving or exposure to the sun will increase the
tire's temperature, thus increasing the tire infla‐
tion pressure.
The tire inflation pressure is reduced when the
tire temperature falls again.
These circumstances may cause a warning
when temperatures fall very sharply.
Sudden tire pressure loss
The system cannot indicate sudden serious tire
damage caused by external circumstances.
Failure performing a reset
Tires with special approval: the system will not
function correctly if a reset was not performed,
for example a flat tire may be indicated although
the tire inflation pressures are correct.
Malfunction
Message
The yellow warning light flashes and is
then illuminated continuously. A Check
Control message is displayed. It may not
be possible to identify tire pressure losses.
Seite 337
Wheels and tires
MOBILITY
337
Online Edition for Part no. 01405A37822 - VI/21