BMW 2006 325i Sedan, Owner'S Manual

Page: 74 / 166

Technology for driving comfort and safety
72
The system must be reinitialized each
time a tire inflation pressure has been cor-
rected or a wheel or tire has been changed.
<
System limitations
The Flat Tire Monitor is unable to warn
the driver of sudden, severe tire damage
caused by external factors, nor can it identify
the gradual loss of pressure that will inevitably
occur in all four tires over a lengthy period of
time.
<
In the following situations, the system could be
delayed or malfunction:
> System has not been initialized
>
Driving on snowy or slippery road surface
>
Performance-oriented style of driving: slip
in the drive wheels, high lateral acceleration
> If snow chains are attached
Initializing the system
The initialization is completed during driv-
ing, which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically.
Do not initialize the system while snow chains
are attached.
<
Operating principle, refer to page 61 .
1. Start the engine immediately before pulling
away, but do not drive off yet.
2. Lightly push button 1 in the turn indicator
stalk up or down repeatedly until the appro-
priate symbol appears in the display,
accompanied by the word "INIT".
3. Press button 2 to confirm your choice of the
Flat Tire Monitor.
4. Press button
2
for approx. 5 seconds, until
the reading shown below is displayed.
5. Start to drive.
Initialization is completed while the car is on
the move, without any feedback.
Indication of a flat tire
The warning lamps come on in yellow
and red. In addition, an acoustic sig-
nal sounds. There is a flat tire or sub-
stantial loss of tire pressure.
1. Cautiously reduce speed to below 50 mph
or 80 km/h. Avoid sudden braking and
steering maneuvers. Do not exceed a speed
of 50 mph or 80 km/h.
If the car is not equipped with Run-
Flat Tires, refer to page
116 , the stan-
dard equipment by design, do not continue
driving. Otherwise a severe accident could
result after a tire puncture.
<
2. At the next opportunity, check the air pres-
sure in all four tires.
If all four tires are inflated to the cor-
rect pressures, the Flat Tire Monitor
might not have been initialized. The system
must then be initialized.
<
3. In the event of complete tire pressure loss,
0 psi/0 kPa, you can estimate the possible
distance for continued driving on the basis
of the following guidelines:
> With a light load:
1 to 2 persons without luggage:
approx. 155 miles/250 km
> With a medium load:
2 persons, luggage compartment full, or
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