BMW 2009 M5 Sedan Manual Do Proprietário
Technology for comfort, convenience and safety
84
The last selected program is active each time
the engine is started.
You can also activate your preferred program
with the button on the steering wheel, refer
to MDrive on page
the engine is started.
You can also activate your preferred program
with the button on the steering wheel, refer
to MDrive on page
FTM Flat Tire Monitor*
The concept
The Flat Tire Monitor detects a pressure loss in
one tire by comparing the speeds of the individ-
ual wheels during driving.
In the event of a pressure loss, there is a change
in the rolling circumference and therefore the
rotation speed of the corresponding wheel. The
system detects this change and reports it as a
flat tire.
one tire by comparing the speeds of the individ-
ual wheels during driving.
In the event of a pressure loss, there is a change
in the rolling circumference and therefore the
rotation speed of the corresponding wheel. The
system detects this change and reports it as a
flat tire.
Functional requirement
In order to ensure that a flat tire is reported cor-
rectly, the system must be initialized while the
tires have the correct inflation pressure.
rectly, the system must be initialized while the
tires have the correct inflation pressure.
The initialization must be repeated after
each time the tire inflation pressure is cor-
each time the tire inflation pressure is cor-
rected and after every tire or wheel change.
<
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:
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
high lateral acceleration
>
Driving with snow chains
*
Initializing system
The initialization finishes during driving,
which can be interrupted at any time.
which can be interrupted at any time.
When driving resumes, the initialization is con-
tinued automatically. The system is initialized
tinued automatically. The system is initialized
after this activation phase. When driving with
snow chains, the system is not initialized.
snow chains, the system is not initialized.
<
With Sequential Manual Transmission via the
button in the center console:
button in the center console:
1.
Start the engine, but do not start driving.
2.
Press the button for approx. 5 seconds.
After the button is released, the warning
lamp lights up in yellow for several seconds
in the instrument cluster, refer to Indication
of a flat tire. The message "Initializing FTM"
appears on the Control Display for a few
seconds.
After the button is released, the warning
lamp lights up in yellow for several seconds
in the instrument cluster, refer to Indication
of a flat tire. The message "Initializing FTM"
appears on the Control Display for a few
seconds.
3.
Start to drive.
The initialization finishes during driving
without feedback.
The initialization finishes during driving
without feedback.
Via iDrive, for operating principle refer to
page
page
:
1.
Press the
button.
This opens the start menu.
2.
Press the controller to open the menu.
3.
Turn the controller until "Settings" is
selected and press the controller.
selected and press the controller.
4.
Select "Vehicle / Tires" and press the con-
troller.
troller.
Online Edition for Part no. 01 41 2 600 738 - © 08/08 BMW AG