brakes RENAULT MEGANE 2005 X84 / 2.G Owners Manual

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NU761_2_G2-FRA.qxd 4/11/05 10:48 Page 2.19
ELECTRONIC STABILITY PROGRAM: ESP WITH UNDERSTEER CONTROL
When the function begins to
operate, warning light Aflashes to
warn you.
If the warning light comes on
accompanied by the “ASR/ESP
deactivated” message when the
engine is started, slowly turn the
steering wheel from lock to lock to
reinitialise the system.
Understeer control
This system optimises the operation
of the ESP in the case of pronounced
understeering (loss of front axle
roadholding).
Operating faults
If the system detects an operating
fault, the message “Check traction
control” or “ESP/ASR not
functioning” is displayed on the
instrument panel display along with
indicator light and indicator
light A.
Contact your RENAULT Dealer.
This system helps to keep control of
the vehicle in critical driving
situations (avoiding an obstacle, loss
of grip when cornering, etc.) and
works in conjunction with the
understeer control system.
Operating principle
A sensor in the steering wheel
detects the direction selected by the
driver.
Other sensors throughout the vehicle
measure the actual direction.
The system compares the direction
selected by the driver and the actual
direction of the vehicle and corrects
this as necessary by applying the
brakes selectively and/or acting on
the engine power.
2.19
This function is an
additional aid in case of
critical driving conditions
to enable the vehicle
behaviour to be adapted to suit
the driving conditions.
However, the function does not
take the place of the driver. It
does not increase the vehicle’s
limits and should not encourage
you to drive more quickly.
Therefore, it can under no
circumstances replace the
vigilance or responsibility of the
driver when manoeuvring the
vehicle (the driver must always
be ready for sudden incidents
which may occur when driving).
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NU761_2_G2-FRA.qxd 4/11/05 10:48 Page 2.20
2.20
TRACTION CONTROL: ASR
Operating principle
Using the wheel sensors, the system
measures and compares the speed of
the drive wheels at all times and
slows down their over-rotation.
If a wheel is starting to spin, the
system brakes automatically until
the drive supplied becomes
compatible with the level of grip.The system also adjusts the engine
speed to the grip available under the
wheels, independently of the
pressure exerted on the accelerator
pedal.
When the function begins to
operate, warning light
Aflashes to
warn you.
This system helps to limit skidding
on drive wheels and to control the
vehicle when pulling away or
accelerating.
This function is an
additional aid in case of
critical driving conditions
to enable the vehicle
behaviour to be adapted to suit
the driving conditions.
However, the function does not
take the place of the driver. I t
does not increase the vehicle’s
limits and should not encourage
you to drive more quickly.
Therefore, it can under no
circumstances replace the
vigilance or responsibility of the
driver when manoeuvring the
vehicle (the driver must always
be ready for sudden incidents
which may occur when driving).
NU761_2_G2-ENG.qxp 03-Jan-06 20:48 Page 2.20 (Black/Process Black\
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NU761_2_G2-FRA.qxd 4/11/05 10:48 Page 2.22
2.22
ANTI-LOCK BRAKING SYSTEM: ABS
You will feel pulsing through the
brake pedal when the system has
been activated. These tangible signs
will warn you that the grip of the
tyres on the ground has reached its
limit and enable you to adapt your
driving style to suit the road
conditions.
This system also allows you to
optimise stopping distances when
the grip of one or more wheels may
be lost (wet roads, slippery or
varying road surfaces).
Although this system allows you to
make maximum use of stopping
distances, even with the ABS you
still have to take account of the
actual condition of the road surface.
It is still essential to follow the rules
of good driving practice (such as
driving at a safe distance from the
vehicle in front).
The fact that the
vehicle’s safety has been increased
should not encourage you to take
risks.
Under heavy braking, the system has
two principal aims; to reduce the
stopping distance and keep your
vehicle under control. However,
there is a risk that roadholding and
directional control may be lost and
the wheels may lock under braking,
depending on the nature of the
ground, weather conditions and
your reactions. The Anti-lock
Braking System (ABS) has been
designed to combat this danger.
The safety enhancement is that the
brake control system prevents the
wheels from locking, even if the
brakes are applied too sharply, and
allows the vehicle to be steered and
thus its direction to be controlled.
Under these circumstances it is
quite possible for the driver to steer
the vehicle and to avoid an obstacle
whilst at the same time applying the
brake.
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