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Dynamic drive, Sports wagon: self-leveling suspension, Ftm flat tire monitor – BMW 528I XDRIVE User Manual

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1.

Hold the vehicle with the brake.

2.

Release the brake and begin to drive imme-
diately.

After releasing the brake, begin to drive
immediately; otherwise, the drive-off

assistant no longer holds the vehicle after
approx. 2 seconds and your vehicle will start to
roll backward.

<

Dynamic Drive*

The concept

Dynamic Drive minimizes body roll and opti-
mizes vehicle stability during cornering and
evasive maneuvers.
Dynamic Drive is based on active stabilizers on
the front and rear axles. Suspension compli-
ance adapts to suit driving conditions, varying
from performance-oriented during cornering to
smooth and comfort-oriented when the vehicle
is proceeding in a straight line. During vehicle
operation, the system continuously runs
through closed-loop control cycles lasting only
fractions of a second.
The system assumes operational status each
time you start the engine.

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

The system must have been initialized when the
tire inflation pressure was correct; otherwise,
reliable signaling of a flat tire is not ensured.

The initialization must be repeated after
every correction of the tire inflation pres-

sure and after every tire or wheel change.

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System limits

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.

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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.

Online Edition for Part no. 01 41 2 602 678 - © 08/09 BMW AG

Online Edition for Part no. 01 41 2 602 678 - © 08/09 BMW AG