BMW 2004 525i Sedan Manual Do Proprietário

 81

natural, even pressure drop in all four 
tires.

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In the following situations, on the other 
hand, there can be delays in detecting tire 
pressure losses, and even system failure: 

>

When you are driving on snow-covered 
or slippery road surfaces 

>

If you are using a sports driving style: 
slip on the drive wheels, high lateral 
acceleration 

>

False alarms and undetected loss of 
pressure may occur when you are driv-
ing with snow chains fitted 

>

When you are driving with the compact 
wheel, the Flat Tire Monitor is unable to 
function. 

Perform the initialization immediately 
after correcting the inflation pressure, 

after changing a tire or changing a wheel or 
all wheels. A drive is necessary for this pur-
pose.

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Control Center, for principle details, refer to 
page 

: 

1.

Before beginning driving, start the 
engine, but do not drive off 

2.

Open the   menu 

3.

Select "Vehicle settings" and press the 
controller 

4.

Select "FTM" and press the controller 

5.

Select "Set tire pressure" and press the 
controller 

6.

Select "Yes" and press the controller

7.

Drive off.
The message "Initializing" is displayed.

It takes a few minutes before the Flat Tire 
Monitor can detect and report a flat tire. 
After the initialization is completed, the 
message "Active" is displayed.

If a flat tire is detected during initialization, 
a message appears on the Control Display.

When driving with snow chains or 
with the compact wheel, do not initial-

ize the system.

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The symbol in the instrument clus-
ter lights up in red and a simulta-
neous message appears on the 

Control Display. In addition, an acoustic 
signal sounds. 
Please note any supplementary information 
that appears on the Control Display. You 
can find more information on the Check 
Control starting on page 

1.

Reduce speed and stop the vehicle 
carefully. Avoid sudden braking and 
steering maneuvers 

2.

Identify damaged tire

If identification is not possible, 
contact your BMW center.

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3.

Replace the damaged wheel, refer to 
Changing a tire on page 

. 

Vehicles with run-flat tires: 

1.

Cautiously reduce the vehicle speed to 
below 50 mph/80 km/h. Avoid sudden 
braking and steering maneuvers. Do 
not exceed a vehicle speed of 50 mph/
80 km/h 

Due to the reinforcement on the 
edges of the run-flat tires, inflation 

pressure loss can not usually be recog-
nized from the outside, refer to Run-flat 
tires on page 

.

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2.

To continue driving, comply with the 
instructions for driving with damaged 
tires on page 

. 

Online Edition for Part No. 01 41 0 157 647 - © 07/03 BMW AG