BMW Motorrad R 1200 S 2007, Rider'S Manual

Page: 82 / 153

BMW Motorrad ABS is unable to
counteract their effects.
Tire Pressure Control
TPC
OE
Function
A sensor is located in each tire,
which measures the air temper-
ature and the inflation pressure
inside the tire and sends these
values to the control unit.
The sensors are equipped with
a centrifugal controller, which
does not enable the transmis-
sion of the measured values un-
til a speed of approx. 20 mph
(30 km/h) is reached. Before ini-
tial reception of the tire inflation
pressure,
--
is shown in the dis-
play for each tire. The sensors
continue to transmit the mea-
sured values for approx. 15 min-
utes after the motorcycle comes
to a stop.
The control unit can manage four
sensors, and as a result two sets
of wheels with RDC sensors can
be driven. If a RDC control unit
is installed, however the wheels
have no sensors, then an error
message is output.
Temperature
compensation
The tire inflation pressures are
shown temperature-compensat-
ed in the multifunction display;
they refer to a tire air tempera-
ture of 68 °F (20 °C). As the air-
pressure testers at filling stations
show a temperature-dependent
tire inflation pressure, they do
not match the values indicated in
the multifunction display in most
cases.
Tire inflation pressure
ranges
The RDC control unit distinguish-
es between three inflation pres-
sure ranges matched to the mo-
torcycle:
Inflation pressure within the
permissible tolerance.
Inflation pressure at the limits
of the permissible tolerance.
Inflation pressure outside the
permissible tolerance.
A warning is also output if the
tire inflation pressure drops rapid-
ly within the permissible toler-
ance.
6
80
z Technology
in detail
ProCarManuals.com