User Manual - Page 449

For V90.

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STARTING AND DRIVING
447
WARNING
If both the warning lamps for brake fault
and ABS fault illuminate at the same time,
a fault has occurred in the brake system.
If the level in the brake fluid reservoir is
normal at this stage, drive carefully to
the nearest workshop and have the
brake system checked - an authorised
Volvo workshop is recommended.
If the brake fluid is below the MIN level
in the brake fluid reservoir, do not drive
further before topping up the brake
fluid. The reason for the loss of brake
fluid must be investigated.
Related information
Brake assistance (p. 447)
Automatic braking when stationary
(p. 452)
Help when starting on a hill (p. 453)
Braking on wet roads (p. 447)
Braking on gritted roads (p. 448)
Brake system maintenance (p. 448)
Brake lights (p. 158)
Brake assistance
The brake assist system (BAS
3
) helps to
increase brake force during braking, and can
thereby shorten the braking distance.
The system detects the way in which the
driver brakes and increases brake force where
necessary. The brake force can be boosted up
to the level when the ABS system is engaged.
The function is suspended when the pressure
on the brake pedal decreases.
Related information
Foot brake (p. 446)
Braking on wet roads
When driving for a prolonged period of 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 pedal
more forcefully. You should therefore maintain
a greater distance to the vehicles in front.
Brake the car firmly after driving on wet roads
or using a car wash. This warms up the brake
discs, enabling them to dry faster and protect-
ing them against corrosion. Bear in mind the
current traffic situation when braking.
Related information
Foot brake (p. 446)
Braking on gritted roads (p. 448)
3
Brake Assist System
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