Volvo V70R - Manual (Page 128)

127
Starting and driving
FOUR-C (Active chassis)
Four-C switch in the centre console (does
not apply to the V70 R)
Active chassis – FOUR-C 1
The car is equipped with an extremely
advanced active chassis system – Continu-
ously Controlled Chassis Concept –
that is
regulated electronically. The functions of the
system are based on a number of sensors
that continually monitor the car’s movements
and reactions, such as vertical and lateral
acceleration, vehicle speed and wheel
movements.
The Four-C control unit analyses data from
the sensors and performs the necessary
shock absorber setting adjustments up to
500 times per second. This results in
extremely fast and accurate individual shock
absorber control, which contributes to varia-
tions in chassis characteristics.
Chassis characteristics can be modified at
any time while driving, when the nature of the
road changes or when you desire a change in
driving style. This change occurs in a matter
of milliseconds.
The effect produced by pressing the accel-
erator pedal is linked to your choice of
chassis characteristics. (Only applies to R-
models).
Comfort
Comfort mode adjusts the chassis setting so
that the body is insulated from uneven
sections of the road surface, which allows for
better glide. Shock absorption is softer and
body movements are minimal. This setting is
recommended for long-distance driving or
driving on slippery road surfaces.
When the ignition is switched off in Comfort
setting, the chassis will resume the same
mode when the car is re-started.
Sport
In Sport mode, steering responses are
quicker than in Comfort mode. Damping is
harder and the body follows the road surface
to minimise rolling during quick cornering.
The car feels sportier.
When the ignition is switched off in Sport
setting, the chassis will resume the same
mode when the car is re-started.
Four-C switch (V70 R)
Advanced 2
In Advanced mode, shock absorber
movements are minimal and optimised for
maximum traction. Acceleration response is
more direct, the automatic gearbox shift
schedule is sportier and roll during cornering
is minimised. This setting is recommended
for flat, even road surfaces only.
When the ignition is switched off in
Advanced setting, the chassis will resume the
same mode when the car is re-started.
1. Option for certain markets. Standard
on V70 R. 2. Only applies to V70 R.