Tire Pressure Control; (Tpc/Rdc) - BMW R 1250GS Adventure Rider's Manual

Tire pressure control

8

(TPC/RDC)

156
with tire pressure monitor
OE
(TPM)
Operation
A sensor located in each tire
monitors the air temperature and
the inflation pressure inside the
tire and transmits this information
to the control unit.
The sensors are equipped with a
centrifugal controller, which does
not enable the transmission of
the measured values until the
minimum speed is exceeded for
the first time.
z
Minimum speed for
the transmission of the
TPC/RDC measured values:
min 19 mph (min 30 km/h)
Before initial reception of the
tire pressure, -- is shown in the
display for each tire. The sensors
continue to transmit the mea-
sured readings for some time
after the vehicle comes to a stop.
Transmission time of the
measured values after
vehicle standstill:
min 15 min
If an TPC/RDC control unit is in-
stalled but the wheels have no
sensors, a fault message is gen-
erated.
Tire inflation pressure
ranges
The TPC/RDC control unit distin-
guishes between three inflation
pressure ranges matched to the
motorcycle:
Tire pressure within the per-
missible tolerance
Tire pressure within the limit
range of the permissible toler-
ance
Tire pressure outside of the
permissible tolerance
Temperature
compensation
The tire inflation pressure is tem-
perature dependent, i.e. it in-
creases or decreases together
with the tire air temperature. The
tire temperature is dependent on
the outside temperature, the rid-
ing style and the length of the
journey.
The tire pressures
are shown in the TFT
display with temperature
compensation and are always
based on the following tire air
temperature:
68 °F (20 °C)
Tire pressure gages at gas sta-
tions do not make any adjust-
ment for the air temperature,
the tire pressure indicated de-
pends on the temperature of the
air in the tire. As a result, in most
cases the values displayed there