Volvo S60 S60R Automobile User Manual


 
06 Starting and driving
123
Brake system
06
Brake servo
If the car is rolling or is being towed with the
engine turned off, the brake pedal must be
pressed about five times harder than when
the engine is running. If the brake pedal is
pressed when the engine is started, you will
feel the pedal drop. This is normal and due to
the brake servo becoming active. This may
be more noticeable if the car has emergency
brake assistance (EBA).
Brake circuits
This symbol lights if a brake circuit
is not working.
If a fault should occur in one of the
circuits, it is still possible to brake
the car. The brake pedal will travel further
and may feel softer than normal. Harder
pressure on the pedal is needed to produce
the normal braking effect.
Dampness can affect braking
characteristics
Brake components become wet when the
car is driven in heavy rain, through pools of
water or when the car is washed. This may
alter brake pad friction characteristics so that
there is a delay before braking effect is no-
ticed.
Press the brake pedal lightly from time to
time if driving for long stretches in rain or
slushy snow, as well as after setting off in
very damp or cold weather. This warms up
the braking surfaces and dries off any water.
It is also recommended to do this before
parking the car for a long period in such
weather conditions.
If the brakes are used heavily
When driving in the Alps or other roads with
similar characteristics, the car’s brakes are
heavily loaded even if the brake pedal is not
being depressed especially hard.
Because speed is often low, the brakes are
not cooled as effectively as when driving on
flat roads at higher speed.
So as not to overload the brakes, shift down
when driving downhill instead of using the
foot brake. Use the same gear driving down-
hill as you would use driving uphill. This
method uses engine braking more efficiently
and requires the foot brake for only brief
periods.
Bear in mind that driving with a trailer puts an
additional load on the car’s brakes.
Anti-lock braking system (ABS)
The ABS system (Anti-lock Braking
System) is designed so that the
wheels do not lock when braking.
This retains the best possible steer-
ing response when braking. This improves
your ability to swerve to avoid obstacles. The
ABS system does not increase your total
braking capacity. However, as the driver you
have increased ability to steer and thus bet-
ter control over the car, which in turn increas-
es safety.
After the engine has started and reached a
speed of about 20 km/h, a short self-test can
be both heard and felt. When the ABS sys-
tem functions, you can hear and feel pulses
in the brake pedal. This is completely normal.
WARNING
The brake servo only works when the en-
gine is running.
NOTE
If braking with the engine switched off,
press the brake pedal sharply once, not re-
peatedly.