BMW C650 Sport, Rider'S Manual

Page: 87 / 174

ASC is unable to control a
situation of this nature.
Slippery surface
On very loose surfaces (for ex-
ample sand or snow), the AS-
C's attempts to control propuls-
ive power might reduce drive to
the extent that the rear wheel no
longer turns. Under these cir-
cumstances, BMW Motorrad re-
commends temporarily switching
off ASC.
Bear in mind that the rear wheel
will spin on the loose surface and
close the throttle in good time
before you reach a firm surface.
Then reactivate ASC.
Tyre pressure
monitoring RDC
with tyre pressure monitoring
(RDC)
OE
Function
A sensor integrated into each
tyre measures the tyre air tempe-
rature and the tyre pressure and
transmits this information to the
control unit.
Each sensor has a centrifugal-
force tripswitch that does not
enable transmission of the meas-
ured values until the vehicle has
accelerated to about 30 km/h.
The multifunction display shows
"
­­
" for each tyre until the tyre-
pressure signal is received for
the first time. The sensors con-
tinue to transmit the measured-
value signals for approximately 15
minutes after the vehicle comes
to a stop.
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-pressure readings
shown by the multifunction
display are temperature-
compensated; the reference tyre
temperature for these readings
is always 20 °C. The gauges on
service station air lines do not
compensate for temperature.
The tyre pressure recorded
depends on tyre air temperature.
In most instances, therefore,
these gauge readings will not
tally with the pressures shown by
the multifunction display.
Pressure adaptation
Compare the RDC readings on
the multifunction display with
the value in the table on the
back cover of the Rider's Manual.
Then use the air-line gauge at
7
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z Engineering details