User Manual - Page 293

For LEON 2019.

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Braking and parking
temperature, air humidity, etc.) noises may be
pr
oduced when br
aking.
W
et r
oads or r
oad salt
In certain situations (for example, on driving
through flooded areas, in severe downpours
or after washing the vehicle) the braking ac-
tion could be delayed if the discs and pads
are damp, or frozen in winter. In this case the
brakes should be “dried” by pressing the
brake pedal several times.
At high speed and with the windscreen wipers
activated, the brake pads will briefly touch
the brake discs. This takes place, although
unnoticeable to the driver, at regular intervals
to improve the response time of the brakes
when they are wet.
The effectiveness of the brakes can also be
temporarily reduced if the vehicle is driven for
some distance without using the brakes when
there is a lot of salt on the road in winter. The
layer of salt that accumulates on the discs
and pads can be removed by gently apply-
ing the brakes a few times.
Corrosion
There may be a tendency for corrosion to
form on the discs and dirt to build up on the
brake pads if the vehicle is used infrequently
or the brakes are not used very often.
If the brakes are not used frequently, or if rust
has formed on the disks, it is advisable to
clean off the pads and disks by braking firmly
a few times at a moderately high speed
››
.
F
ault in the br
ak
e syst
em
If the br
ake pedal travel should ever increase
suddenly, this may mean that one of the two
brake circuits has failed. Drive immediately to
the nearest specialised workshop and have
the fault repaired. Drive there slowly and re-
member that you will have to apply more
pressure on the brake pedal and allow for
longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake fluid
level is monitored electronically.
Brake servo
The brake servo increases the pressure you
apply to the brake pedal. It works only when
the engine is running.
WARNING
Any anomaly in the brake system can in-
crease the braking distance, with the r
e-
sulting risk of an accident.
New brake pads and discs must be run in
and do not have the correct friction during
the first 200 km (124 miles). This reduced
braking capacity may be offset by pressing
on the brake pedal a little harder.
If you are driving on roads which have
been salted, br
aking effectiveness may be
decreased.
Brakes can overheat if used excessively
on slopes. Before driving down a long steep
slope, it is advisable to reduce speed and
change down into a lower gear or range.
Therefore, using the engine brake relieves
the brakes.
Gentle continuous braking causes the
brakes to overheat and the braking dis-
tance will increase. Apply and then release
the brakes alternately.
Apply the brakes heavily to clean the
brake system only in a suitable traffic situa-
tion. Do not put other road users in danger:
there is risk of causing an accident.
Ensure the vehicle does not move while in
neutral, when the engine is stopped. The
braking distance is increased considerably
when the brake servo is not active.
If the brake is subjected to high stresses,
vapour bubbles may form in the brake sys-
tem's pipes. This reduces the efficiency of
the brakes.
Non-standard or damaged front spoilers
could restrict the airflow to the brakes and
cause them to overheat. Before purchasing
accessories please read the relevant in-
structions.
»
291
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