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08 Starting and driving
08
302
* Option/accessory, for more information, see Introduction.
Foot brake
The foot brake is used to reduce the car's
speed while driving.
The car is equipped with two brake circuits. If
a brake circuit is damaged then the brake
pedal will engage deeper and a higher pres-
sure on the pedal is needed to produce the
normal braking effect.
The driver's brake pedal pressure is assisted
by a brake servo.
WARNING
The brake servo only works when the
engine is running.
If the foot brake is used when the engine is
switched off then the pedal will feel stiff and a
higher pedal pressure must be used to brake
the car.
For cars with the Hill start assist (HSA)*
(p. 289)* function, the pedal returns more
slowly than usual to normal position if the car
is parked on a gradient or on an uneven sur-
face.
In very hilly terrain or when driving with a
heavy load the brakes can be relieved by
using engine braking. Engine braking is most
efficiently used if the same gear is used
downhill as up.
For more general information on heavy loads
on the car, see Engine oil - adverse driving
conditions (p. 426).
Braking on wet roads
When driving for a long time in heavy rain
without braking, the braking effect may be
delayed slightly when next using the brakes.
This may also be the case after a car wash. It
is then necessary to depress the brake
harder. For this reason, maintain a greater
distance to the traffic ahead.
Brake the car firmly after driving on wet roads
and after a car wash. The brake discs are
then warmed up, dry more quickly and are
protected against corrosion. Take the prevail-
ing traffic situation into account when brak-
ing.
Braking on salted roads
When driving on salted roads a layer of salt
may form on the brake discs and brake lin-
ings. This may extend braking distance. For
this reason, keep an extra large safety dis-
tance to the vehicle ahead. Also make sure of
the following:
•
Brake occasionally to remove any layer of
salt. Make sure that other road users are
not put at risk by the braking.
•
Gently depress the brake pedal when
driving is finished and before the next
journey starts.
Maintenance
To keep the car as safe and reliable as possi-
ble, follow the Volvo service intervals as
specified in the Service and Warranty Book-
let.
New and replacement brake linings and brake
discs only provide optimal brake performance
after a few hundred kilometres after "wearing-
in". Compensate for the reduced brake per-
formance by depressing the brake pedal
harder. Volvo recommends only fitting brake
linings that are approved for your Volvo.
IMPORTANT
The wear on the brake system's compo-
nents must be checked regularly.
Contact a workshop for information about
the procedure or engage a workshop to
carry out the inspection - an authorised
Volvo workshop is recommended.
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