Tyre Pressure Monitoring Rdc - BMW K 1600GTL Exclusive Rider's Manual

Tyre pressure
6
monitoring RDC
96
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 tripswitch
that does not enable transmis-
sion of the measured values un-
til the motorcycle has acceler-
ated to about 30 km/h. The dis-
--
play shows " " for each tyre
until the tyre-pressure signal is
received for the first time. The
z
sensors continue to transmit the
measured-value signals for ap-
proximately 15 minutes after the
motorcycle comes to a stop.
An error message is issued if
wheels without sensors are fitted
to a motorcycle equipped with an
RDC control unit.
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 tempera-
ture, 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 gauges
on forecourt air lines do not
compensate for temperature.
The tyre pressure recorded
depends on tyre temperature.
In most instances, therefore,
these gauge readings will not
tally with the pressures shown by
the multifunction display. The
warmer the tyre, the higher the
gauge reading by comparison
with the reading shown on the
display.
Pressure adaptation
Compare the RDC readings
on the multifunction display
with the value in the table on
the inside cover of the Rider's
Manual. Then use the air line to
compensate for the difference
between the RDC reading and
the value in the table.
Example: According to the
Rider's Manual, tyre pressure
should be 2.9 bar, but the
reading in the multifunction
display is 2.7 bar, so pressure is
low by 0.2 bar. The gauge on
the air line shows 2.5 bar. You
must now increase tyre pressure
by the 0.2 bar difference
between the value in the table
and the RDC reading; when the
air-line gauge shows 2.7 bar,