Bmw M5 Sedan 2009 Bedienungsanleitung PDF herunterladen (Seite 86)

Technology for comfort, convenience and safety

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 52.

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.

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.

The initialization must be repeated after

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:

> 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

Initializing system

The initialization finishes during driving,

which can be interrupted at any time.

When driving resumes, the initialization is con-

tinued automatically. The system is initialized

after this activation phase. When driving with

snow chains, the system is not initialized.<

With Sequential Manual Transmission via the

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.

3. Start to drive.

The initialization finishes during driving

without feedback.

Via iDrive, for operating principle refer to

page 16:

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.

4. Select "Vehicle / Tires" and press the con-

troller.

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