Tyre Pressure Monitoring Rdc; Rdc - BMW R 1200 GS Rider's Manual

When riding on a slippery sur-
6
face, never snap the throttle
twistgrip fully closed without
98
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
z
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.
The control unit can adminis-
trate four sensors, so two dif-
ferent sets of wheels with RDC
sensors can be alternated on the
vehicle. An error message is is-
sued if wheels without sensors
are fitted to a vehicle equipped
with an RDC control unit.
Tyre-pressure ranges
The RDC control unit differenti-
ates between three tyre-pressure
ranges, all of which are paramet-
erised for the motorcycle:
Tyre pressure within permitted
tolerance.
Tyre pressure close to limit of
permitted tolerance.
Tyre pressure outside permit-
for each ted tolerance.
Temperature
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