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EnglishStarting and driving -> Foot brake for your Volvo XC40 2018-2026
STARTING AND DRIVING
Before starting the engine with the
Brake functions
Foot brake
alcohol lock*
The car's brakes are used to reduce the
speed or prevent the car from rolling.
In addition to the foot brake and parking
brake, the car is equipped with several auto-
matic brake assist functions. These can assist
the driver by not needing to keep his/her foot
on the brake pedal when at a traffic light,
when starting on an uphill gradient or when
driving on a downhill gradient.
The foot brake is part of the brake system.
The car is equipped with two brake circuits. If
a brake circuit is damaged, the brake pedal
may engage deeper. Higher pressure on the
pedal will therefore be needed to produce the
normal braking effect.
The alcohol lock is activated automatically
and is then ready for use when the car is
opened.
To bear in mind
In order to obtain correct function and as
accurate a measurement result as possible:
The driver's brake pedal pressure is assisted
by a brake servo.
Avoid eating or drinking approx. 5 minutes
before the breath test.
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Depending on the car's equipment, the follow-
ing auto braking functions are available:
WARNING
Avoid excess windscreen washing - the
alcohol in the washer fluid may result in an
incorrect measurement result.
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The brake servo only works when the
engine is running.
Automatic brake when stationary (Auto
Hold)
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Hill start assist (Hill Start Assist)
Auto braking after a collision
City Safety
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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.
After a completed period of driving, the
engine can be restarted within 30 minutes
without a new breath test.
Hill descent control (Hill Descent Control)*
In very hilly terrain or when driving with a
heavy load the brakes should be relieved by
using engine braking in manual gearshift
mode. Engine braking is most efficiently used
if the same gear is used downhill as up. Use
drive mode Off Road* for increased engine
braking while driving on steep downhill gradi-
ents at low speeds.
Related information
Related information
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Bypass of the alcohol lock* (p. 400)
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Parking brake (p. 404)
Alcohol lock* (p. 400)
Automatic braking when stationary
(p. 407)
Starting the car (p. 396)
Ignition positions (p. 398)
Auto braking after a collision (p. 409)
Help when starting on a hill (p. 408)
City Safety™ (p. 273)
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Anti-lock braking system
The car has anti-lock brakes (ABS2), which
prevents the wheels from locking while brak-
Hill descent control* (p. 428)
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* Option/accessory. 401
STARTING AND DRIVING
|| ing and allows maintained steering control.
Vibration may be felt in the brake pedal when
this is engaged and this is normal.
Brake assistance
WARNING
The brake assist system (BAS3) helps to
increase brake force during braking, and can
thereby shorten the braking distance.
If both the warning lamps for brake fault
and ABS fault illuminate at the same time,
a fault has occurred in the brake system.
A short test of the ABS system is made auto-
matically after the car has been started when
the driver releases the brake pedal. A further
automatic test of the system may be made at
low speed. The test may be felt as pulses in
the brake pedal.
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.
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.
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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.
Symbols in the driver display
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Symbol Specification
When BAS is activated the brake pedal
lowers slightly more than usual, depress
(hold) the brake pedal as long as neces-
sary.
Check the brake fluid level. If the
level is low, fill with brake fluid
and check for the cause of the
brake fluid loss.
Related information
When the brake pedal is released, all brak-
ing ceases.
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Constant glow for 2 seconds
when the engine is started: Auto-
matic function check.
Automatic braking when stationary
(p. 407)
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Related information
Help when starting on a hill (p. 408)
Brake lights (p. 146)
Constant glow for more than 2
seconds: Fault in the ABS sys-
tem. The car's normal brake sys-
tem is still working, but without
the ABS function.
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Anti-lock Braking System
Brake Assist System
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402
STARTING AND DRIVING
Braking on wet roads
Braking on gritted roads
Brake system maintenance
Check brake system components regularly
for wear.
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.
When driving on salted roads, a layer of salt
may form on the brake discs and brake lin-
ings.
This may extend braking distance. You should
therefore maintain a greater safety distance to
vehicles in front. In addition, make sure you do
the following:
To keep the car as safe and reliable as possi-
ble, follow the Volvo service intervals as speci-
fied in the Service and Warranty Booklet. After
replacing brake linings and brake discs, brak-
ing effect is only adapted after they have been
"worn in" for a few hundred kilometres (miles).
Compensate for the reduced braking effect by
depressing the brake pedal harder. Volvo rec-
ommends only fitting brake linings that are
approved for your Volvo.
Brake now and again to remove any layer
of salt. Make sure that other road users
are not put at risk by the braking.
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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.
Gently depress the brake pedal after fin-
ishing driving and before starting your next
trip.
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Related information
Related information
The wear on the brake system's compo-
nents must be checked regularly.
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Contact a workshop for information about
the procedure or engage a workshop to
carry out the inspection - an authorised
Volvo workshop is recommended.
Related information
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