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Technology for comfort, convenience and safety
88
System limits
The Flat Tire Monitor cannot indicate
sudden severe tire damage caused by
outside factors and does not detect a natural,
even pressure drop in all four tires.<
In the following situations, the system could be
delayed or malfunction:
> System has not been initialized
> Driving on snowy or slippery road surface
> Sporty driving style: slip in the drive wheels,
high lateral acceleration
> Driving with snow chains
*
When you are driving with the compact wheel
*
the Flat Tire Monitor is unable to function.
Initializing system
The initialization finishes during driving,
which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically. When driving with snow
chains
*
or with the compact wheel
*
, do not
initialize the system.<
iDrive, for principle details, refer to page 16.
1. Press the button.
This opens the start menu.
2. Press the controller to open the menu.
3. Select "Vehicle settings" and press the
controller.
4. Select "FTM" and press the controller.
5. Start engine, but do not start driving.
6. Select "Set tire pressure" and press the
controller.
7. Select "Yes" and press the controller.
8. Start to drive.
The message "Initializing..." is displayed.
The initialization finishes during driving. Then
the message "Status: FTM active" appears on
the Control Display again.
Indication of a flat tire
The warning lamp lights up red. A mes-
sage appears on the Control Display.
In addition, an acoustic signal sounds.
There is a flat tire or extensive inflation pressure
loss.
1. Reduce speed and stop the vehicle care-
fully. Avoid sudden braking and steering
maneuvers.
2. Identify damaged tire.
If identification is not possible, con-
tact a BMW center.<
3. Replace the damaged wheel, refer to
Changing a wheel on page 207.
Run-flat tires*
1. Cautiously reduce speed to below 50 mph/
80 km/h. Avoid sudden braking and steer-
ing maneuvers. Do not exceed a speed of
50 mph/80 km/h.
If the vehicle is not equipped with run-
flat tires, refer to page 194, do not
continue driving. Continuing to drive with a
flat tire could cause severe accidents.<
2. At the next opportunity, check the air pres-
sure in all four tires.
If the tire inflation pressure in all four
tires is correct, the Flat Tire Monitor
Online Edition for Part-Nr. 01 41 0 159 736 - © 08/05 BMW AG
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