Drive-off assistant, Dynamic drive, Ftm flat tire monitor – BMW 650i Convertible 2010 User Manual

Page 87

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lity

Display of the previously described
malfunction in Canadian models.

The DSC indicator lamp lights up. A
message appears on the Control Dis-
play. A malfunction has occurred in the

DSC and DTC. The stabilizing actions are no
longer available. The vehicle remains opera-
tional. Have the system checked as soon as
possible.

The brake system warning lamp lights
up yellow. A message appears on the
Control Display. The brake assistant is

defective. Have the system checked as soon as
possible.

Display of the previously described
malfunction in Canadian models.

Drive-off assistant

The drive-off assistant enables you to start off
conveniently on slopes. The parking brake is
not required for this purpose.

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.

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.

<

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.

<

In the following situations, the system could be
delayed or malfunction:

>

System has not been initialized

>

Driving on snowy or slippery road surface

Online Edition for Part no. 01 41 2 602 716 - © 08/09 BMW AG

Online Edition for Part no. 01 41 2 602 716 - © 08/09 BMW AG

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