Rdc; Tyre Pressure Monitoring Rdc - BMW R1200GS Rider's Manual

When riding on a slippery sur-
face, never snap the throttle
twistgrip fully closed without
pulling the clutch at the same
time. Engine braking torque can
cause the rear wheel to lock, with
a corresponding loss of stability.
BMW Motorrad ASC is unable to
control a situation of this nature.
Tyre pressure
monitoring RDC
with tyre pressure monitoring
OE

(RDC)

Function
A sensor integrated into each
tyre measures the air tempera-
ture and the air pressure inside
the tyre and transmits this in-
formation to the control unit.
Each sensor has a centrifugal-
force tripswitch that does not
enable transmission of the meas-
ured values until the motorcycle
has accelerated to above approx-
imately 30 km/h for the first time.
--
The display shows
tyre until the tyre-pressure signal
is received for the first time. The
sensors continue to transmit the
measured-value signals for ap-
proximately 15 minutes after the
vehicle comes to a stop.
An error message is issued if
wheels without sensors are fit-
ted to a vehicle equipped with an
RDC control unit.
Tyre-pressure ranges
The control unit differentiates
between 3 tyre-pressure ranges,
all of which are parameterised for
the motorcycle:
Tyre pressure within permitted
tolerance
Tyre pressure close to limit of
permitted tolerance
Tyre pressure outside permit-
ted tolerance
Temperature
for each
compensation
Tyre pressure is a temperature-
sensitive variable: pressure in-
creases as tyre temperature rises
and decreases as tyre temper-
ature drops. Tyre temperature
depends on ambient temperature
as well as on the style of riding
and the duration of the ride.
The tyre-pressure readings
shown by the multifunction
display are temperature-
compensated; the reference tyre
temperature for these readings
is always 20 °C. The air lines
available to the public in petrol
stations and motorway service
areas have gauges that do not
compensate for temperature; the
reading shown by a gauge of
this nature is the temperature-
dependent tyre pressure. In
most instances, therefore, these
gauge readings will not tally with
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