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Drive-off assistant, Flat tire monitor ftm – BMW M3 Convertible 2008 User Manual

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operating condition such as steering, braking,
etc., the damping automatically adjusts to the
new conditions in fractions of a second.
You can select between three programs.

"Comfort" program

Select the "Comfort" program if you want com-
fort-oriented control of the shock absorbers.

"Normal" program

The "Normal" program offers control that is bal-
anced between comfort and sportiness.

"Sport" program

Select the "Sport" program if you want consis-
tently sporty control of the shock absorbers.

Selecting a program

Press the EDC button repeatedly:

>

"Comfort": LED off:

>

"Normal": one LED lights up.

>

"Sport": both LEDs light up.

The selected program is stored for the remote
control currently in use and is activated the next
time the engine is started.

Drive-off assistant

The drive-off assistant enables you to drive off
smoothly on uphill gradients. It is not necessary
to use the parking brake for this.

1.

Hold the car in place by depressing the
brake.

2.

Release the brake and drive off without
delay.

The drive-off assistant holds the car in
place for approx. 2 seconds after the

brake is released. Drive off without delay after
releasing the brake. Otherwise, the drive-off
assistant will no longer hold the car in place
after approx. 2 seconds and the car will start to
roll backwards.

<

Flat Tire Monitor FTM*

The concept

The Flat Tire Monitor detects pressure loss in a
tire by comparing the rotating speeds of the
individual tires while moving.
In the event of pressure loss, the rolling circum-
ference changes and, thus, the rotating speed
of the affected wheel. This change is detected
and is reported as a flat tire.

Functional requirement

In order to assure the reliable reporting of a flat
tire, the system must be initialized for the cor-
rect tire inflation pressure.

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

>

Snow chains are attached

Initializing the system

The initialization is completed during driv-
ing, which can be interrupted at any time.

Online Edition for Part no. 01 41 0 014 960 - © 02/08 BMW AG

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