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

Tyre pressure
monitoring (RDC)
with tyre pressure control
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.
The sensors are fitted with a
centrifugal-force tripswitch which
allows the measured values to be
transmitted after the minimum
speed is exceeded the first time.
Minimum speed for
transmission of the RDC
measured values:
min 30 km/h
--
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 some
time after the vehicle comes to a
stop.
Transmission duration
of the measured values
after vehicle standstill:
min 15 min
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 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.
for each
Tyre pressure outside permit-
ted tolerance.
Temperature
compensation
Tyre pressure is a temperature-
sensitive variable: pressure in-
creases as tyre-air temperature
rises and decreases as tyre-air
temperature drops. Tyre-air tem-
perature depends on ambient
temperature as well as on the
style of riding and the duration of
the ride.
The tyre pressures are
shown in the multifunc-
tion display as compensating
for the temperature and al-
ways refer to the following tyre
air temperature:
20 °C
The air lines available to the pub-
lic in petrol stations and motor-
way service areas have gauges
that do not compensate for tem-
perature; the reading shown by
a gauge of this nature is the
temperature-dependent tyre-
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