Tyre Pressure Control Rdc Oe - BMW R 1200 ST Rider's Manual

Usable fuel capacity
21 l
Reserve fuel
4 l
Press the filler cap down
firmly to close.
Remove the key and close
the protective cap.
Tyre pressure control
OE
RDC
Function
A sensor integrated into each
tyre measures the air tem-
perature and the air pressure
inside the tyre and transmits
this information to the control
unit.
Each sensor has a
centrifugal-force tripswitch
that does not enable
transmission of the measured
values until the motorcycle
has accelerated to about
30 km/h. The display shows
-- for each tyre until the
tyre-pressure signal is
received for the first time. The
sensors continue to transmit
the measured-value signals
for approximately 15 minutes
after the motorcycle comes to
a stop.
The control unit can
administrate four sensors, so
two different sets of wheels
with RDC sensors can be
alternated on the motorcycle.
An error message is issued
if wheels without sensors
are fitted to a motorcycle
equipped with an RDC control
unit.
Temperature
compensation
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
almost invariably show
temperature-dependent
tyre pressures, so in most
instances these gauge
readings will not tally with
the readings shown by the
multifunction display.
Tyre-pressure ranges
The RDC control unit differ-
entiates between three air-
pressure ranges, all of which
are parameterised for the mo-
torcycle:
5
79
z