Sports wagon: self-leveling suspension, Ftm flat tire monitor – BMW 535i xDrive Sports Wagon 2009 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 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
*
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. The system is initialized
after this activation phase. When driving with
snow chains
*
or a compact tire
*
, the system is
not initialized.
<
iDrive, for operating principle refer to page
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 2 600 721 - © 08/08 BMW AG