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Sports wagon: self-leveling suspension, Ftm flat tire monitor – BMW AG 528XI User Manual

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Sports Wagon: self-leveling

suspension

Malfunction

The warning lamp for self-leveling sus-
pension lights up yellow and a message
is shown on the Control Display. A mal-

function has occurred in the self-leveling sus-
pension. Stop and check the vehicle. If it is con-
siderably lower at the rear than at the front, and
possibly also on one side – rear left compared to
rear right –, go to the nearest BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel. Drive with appropriate caution in the
meantime. The vehicle has reduced ground
clearance and driving comfort may be notice-
ably reduced. Even if the position of the vehicle
is normal, go to the nearest BMW center or a
workshop that works according to BMW repair
procedures with correspondingly trained per-
sonnel.

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 assure the reliable reporting of a flat
tire, the system must be initialized for the cor-
rect tire 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

*

When you are driving with the compact wheel

*

the Flat Tire Monitor is unable to function.

Initializing system

The initialization finishes during driving,
which can be interrupted at any time.

When driving resumes, the initialization is con-
tinued automatically. Do not initialize the sys-
tem when driving with snow chains

*

or com-

pact wheel

*

.

<

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.

Online Edition for Part no. 01 41 2 600 310 - © 02/08 BMW AG

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