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EnglishControls and features -> Tire Pressure Warning (RDW) for your BMW 5 Series 1995-2003
88nTire Pressure Warning (RDW)
Repeat this process after altering the
tire inflation pressure, changing the tire
or rotating the wheels.
The concept
The tire-pressure warning system,
RDW, monitors the tire inflation pres-
sure in all four tires while driving. The
system provides an alert whenever the
inflation pressure has dropped signifi-
cantly in one of the tires.
Do not carry out any further system
activation on the target condition that
has already been "learned" after
correcting the inflation pressure.
So that the RDW can "learn" the correct
tire inflation pressure, check the infla-
tion pressure in all the tires, comparing
them to the values in the inflation pres-
sure table (page 27), making correc-
Activate the system
tions if necessary. Then activate the
system.
1 Turn the ignition key to position 2 (do
not start the engine).
The Check Control (refer to page 72)
will inform you if the tire pressure of one
the tires has dropped significantly.
2 Press and hold the button (arrow)
until the message "SET TIRE
PRESSURE" is displayed for a few
seconds in the Check Control.
3 The RDW initiates an automatic
learning process during driving, and
stores this target condition. This
one-time learning process takes at
least 10 minutes, and from that point
on the RDW can identify and report a
flat tire.
Tire Pressure Warning (RDW)
89n
Check the tire inflation pressure
on a regular basis and correct if
necessary. Refer to page 26.
Flat tire
System fault
In the event of a flat tire, the message
"TIRE DEFECT" appears in the Check
Control. In addition, a gong is sounded.
The message "TIRECONTROL
INACTIVE" appears in the Check
Control if there is a system fault.
Do not carry out any kind of system
activation when using snow chains.
Under these kinds of conditions, false
warnings and unidentified losses in
pressure are possible.
If this occurs, reduce vehicle speed
immediately and stop the vehicle in a
safe location. Avoid hard brake applica-
tions. Do not oversteer. Correct the tire
failure using the M Mobility system
(refer to page 162).
Please contact your BMW center for
additional information.
In certain circumstances, when driving
on snow-covered or slippery road
surfaces, there may be a delay in identi-
fying any loss in inflation pressure.
A sporty driving style (slip at the wheels
receiving the torque, high lateral accel-
erations) can lead to delayed RDW
warnings.<
The RDW cannot inform you of
sudden and severe tire damage
caused by external influences.
The RDW will not identify the natural,
even loss of pressure in all four tires,
either.<
