Engine start RENAULT MEGANE 2017 4.G Service Manual

2.15
SPECIAL FEATURES OF DIESEL VERSIONS
Diesel engine speed
Diesel engines are fitted with an injec-
tion pump which prevents the engine
speed being exceeded irrespective of
the gear selected.
If the message “Check antipollution
system” is displayed along with warn-
ing lights
Ä and ©, consult an
authorised dealer immediately.
When driving, depending on the fuel
grade used, it is possible that white
smoke may be emitted.
This is due to the exhaust particle filter
being cleaned automatically, and does
not affect the way the vehicle runs.
Running out of fuel
If the tank has been completely
drained, the system must be reprimed
after the tank is refilled: see information
on the “fuel tank” in section 1 before re-
starting the engine.
Do not park the vehicle or
run the engine in locations
where combustible sub-
stances or materials such
as grass or leaves can come into
contact with the hot exhaust system.
Precautions to be taken in
winter
To avoid any faults in icy weather:
– ensure that the battery is always fully charged,
– always keep the diesel tank rela- tively full to avoid water vapour con-
densing in it and accumulating at the
bottom of the tank.

2.17
ELECTRONIC PARKING BRAKE (1/3)
Note:
To indicate that the electronic parking
brake is released, a beep sounds and
the message “Apply parking brake” ap-
pears on the instrument panel:
– with the engine running: when the driver’s door is opened;
– with the engine switched off (eg. when the engine stalls): when a front
door is opened.
In this case, pull and release switch 2 to
apply the assisted parking brake.
Assisted release of the parking
brake
The brake will be released as soon as
the vehicle starts and accelerates.
Assisted operation
The electronic parking brake immobi-
lises the vehicle when the engine is
switched off by pressing the engine
start/stop button 1 or by turning the
ignition key (key in the “ ON" 2 po-
sition).
In all other circumstances, for example
stalling of the engine or placing of
the engine on standby by the Stop
and Start function (refer to the informa-
tion on the "Stop and Start" function in
Section 2), the electronic parking brake
is not applied automatically. Manual
mode must be used. For certain country-specific model ver-
sions, the assisted brake application
function is not activated. Refer to the
information on “Manual operation”.
To confirm that the electronic parking
brake is applied, the message “Parking
brake on” and warning light
}
on the instrument panel and warning
light 3 on the switch 2 light up.
After the engine is switched off, indi-
cator light 3 goes out several minutes
after the electronic parking brake has
been applied and indicator light
}
goes out when the vehicle is locked.
Before leaving the vehi-
cle, check that the assisted
parking brake is fully ap-
plied. Warning light 3 on
switch 2 and warning light
}
on the instrument panel light up to
show that the parking brake is ap-
plied but go out when the doors are
locked.
3
2
1

2.18
ELECTRONIC PARKING BRAKE (2/3)Special cases
To park on a slope or while towing a
trailer, for example, pull switch 2 for
a few seconds to gain the maximum
braking.
To park the vehicle without applying the
electronic parking brake (if there is a
risk of freezing, for example):
– with the engine running, while simul- taneously keeping the brake pedal
and switch 2 depressed, switch off
the engine by pressing the engine
Start/Stop button 1;
– in gear, release the brake pedal and switch 2.
For vehicles fitted with the Stop and
Start function, with the engine on
standby, the electronic parking brake is
automatically activated if the driver un-
fastens their seat belt or opens the driv-
er's door or gets out of their seat.
Brief stop
To manually activate the electronic
parking brake, (when stopping at a red
light, or stopping when the engine is
running, etc.): pull and release switch 2.
The brake is released as soon as the
vehicle is started up again.
Manual operationYou can control the electronic parking
brake manually.
Applying the electronic parking
brake
Pull switch 2. Warning light 3 and warn-
ing light
} on the instrument panel
light up.
Releasing the electronic parking
brake
With the ignition on, depress the brake
pedal then press switch 2: warning
light 3 and warning light
} go out.
1
Special feature related to the Stop and Start function: if the driver's \
seat
is unfastened before the engine goes into standby due to the Stop and
Start function, make sure that the parking brake is applied: the
} in-
dicator light on the instrument panel confirms this. Risk of loss of immobilisa-
tion.
3
2

2.24
DRIVING ADVICE, ECO-DRIVING (5/5)
Advice on use
– Favour the ECO mode.
– Electricity is fuel; switch off all the electrical components which are
not really needed. However (safety
first), keep your lights on when the
visibility is bad (“see and be seen”).
– Use the air vents. Driving with the windows open at 60 mph (100 km/h)
will increase fuel consumption by
4%.
– Never fill the fuel tank right to the brim to avoid overflow.
– In vehicles fitted with air conditio-
ning, it is normal to observe an in-
crease in fuel consumption (espe-
cially in urban conditions) when it is
used. For vehicles fitted with manual
air conditioning, switch off the system
when it is not required.
Recommendations for reducing
consumption and therefore help-
ing to preserve the environment:
If the vehicle has been parked in the
sun, open the doors for a few mo-
ments to let the hot air escape before
starting the engine.
– Do not leave an empty roof rack fitted to the vehicle.
– It is better to fit a trailer for bulky ob- jects.
– When towing a caravan, fit a wind deflector and adjust it carefully.
– Avoid using the car for door-to-door calls (short journeys with long waits
in between) because the engine
never reaches its normal operating
temperature.
Tyres
– An underinflated tyre increases fuel consumption.
– Opt for the highest speed pressure or the pressure recommended to op-
timise fuel consumption indicated
on edge of the driver’s door (please
refer to the information on “Tyre infla-
tion pressure” in Section 4).
– The use of non-recommended tyres can increase fuel consumption.

2.25
MAINTENANCE AND ANTIPOLLUTION ADVICE
Your vehicle complies with criteria for
recycling and recovering vehicles at the
end of their service life which will come
into force in 2015.
Some parts of your vehicle have there-
fore been designed to facilitate future
recycling.
These parts are easy to remove so
that they can be recovered and reproc-
essed by recycling companies.
By virtue of its design, moderate fuel
consumption and initial settings, your
vehicle also conforms to current anti-
pollution regulations. The manufac-
turer is actively striving to reduce pol-
lutant exhaust gas emissions and to
save energy. But the fuel consumption
of your vehicle and the level of pollutant
exhaust gas emissions are also your
responsibility. Ensure that it is main-
tained and used correctly.
Maintenance
It is important to remember that fail-
ure to respect antipollution regulations
could lead to legal action being taken
against the vehicle owner.In addition, replacing engine, fuel
supply system and exhaust compo-
nents with parts other than those origi-
nally recommended by the manufac-
turer may alter your vehicle so that it
no longer complies with anti-pollution
regulations.
Have your vehicle adjusted and
checked by an authorised dealer, in ac-
cordance with the instructions given in
your maintenance schedule: they will
have all the equipment necessary for
ensuring that your vehicle is maintained
to its original standard.
Engine adjustments
– Spark plugs:
for optimum condi-
tions of use, output and performance
the specifications laid down by our
Design Department must be strictly
applied.
If the spark plugs have to be changed, use the make, type and gap specified
for your vehicle’s engine. Contact an
authorised dealer for this.
– Air filter, fuel filter: a choked ele-
ment will reduce efficiency. It must
be replaced.
– Ignition and idle speed: no adjust-
ment is needed.
Exhaust gas monitoring
system
The exhaust gas monitoring system will
detect any operating faults in the vehi-
cle’s antipollution system.
If this system malfunctions, toxic sub-
stances may be released into the at-
mosphere or damage may occur.
ÄThis warning light on the in-
strument panel will indicate if
there are any faults in the system:
This lights up when the ignition is
switched on and goes out when the
engine is started.
– If it lights up continuously, consult an approved Dealer as soon as possi-
ble;
– if it flashes, reduce the engine speed until the light stops flashing. Contact
an authorised dealer as soon as pos-
sible.

2.31
DRIVER CORRECTION DEVICES AND AIDS (2/10)
Operating faults:
–
© and x lit up on the in-
strument panel alongside mes-
sages “Check ABS”, “Check braking
system” and “Check ESC”: indicates
the ABS, ESC and emergency brake
assist are deactivated. Braking is
always enabled;
–
x, D, © and ® lit
up on the instrument panel alongside
the message “Braking system fault”:
this indicates a fault in the braking
system.
In both cases, consult an approved
dealer.
Your braking systems
are partially operational.
However, it is dangerous
to brake suddenly and
it is essential to stop immediately,
as soon as traffic conditions allow.
Contact an approved dealer.Warning light ® re-
quires you to stop immedi-
ately, for your own safety,
as soon as traffic conditions
allow. Switch off the engine and do
not restart it. Contact an approved
Dealer.

2.32
Electronic stability control
ESC with understeer control
and traction control
Electronic stability control ESC
This system helps you to keep control
of the vehicle in critical driving condi-
tions (avoiding an obstacle, loss of grip
on a bend, etc.).
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 driver input to
the actual trajectory of the vehicle and
corrects the trajectory if necessary by
controlling the braking of certain wheels
and/or engine power. In the event that
the system is engaged, indicator light
 flashes on the instrument panel.Understeer control
This system optimises the action of the
ESC in the case of pronounced under-
steer (loss of front axle road holding).
Traction control
This system helps to limit wheelspin of
the drive wheels and to control the ve-
hicle when pulling away accelerating or
decelerating.
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 slip, the system brakes au-
tomatically until the drive supplied be-
comes compatible with the level of grip
under the wheel again.
The system also adjusts the engine
speed to the grip available under the
wheels, independently of the pressure
exerted on the accelerator pedal.
Operating faults
When the system detects an operat-
ing fault the message “Check ESC” and
warning light
© and  appear
on the instrument panel.
In this case, the ESC and traction con-
trol system are deactivated. Consult an
authorised dealer.
DRIVER CORRECTION DEVICES AND AIDS (3/10)

2.36
DRIVER CORRECTION DEVICES AND AIDS (7/10)
Active emergency braking
This function is an additional driving aid. However, this function is not
under any circumstances intended to replace the due care and attention
of the driver, who should at all times be in control of the vehicle.
System servicing/repairs
– In the event of an impact, the sensor alignment may become changed, and \
its operation will consequently be affected. Deactivate the function, then consult
an authorised dealer.
– Any work in the area where the radar is located (repairs, replacements,\
touch- ing up of paintwork) must be carried out by a qualified professional.
Only an authorised dealer is qualified to service the system.
In the event of system disturbance
Some conditions can disturb or damage the operation of the system, such \
as:
– a complex environment (metal bridge, etc.);
– poor weather conditions (snow, hail, black ice, etc.).
Risk of inadvertent braking.
Operating faults
When the system detects an operating
fault, the
 warning light lights up
on the instrument panel, with the mes-
sage “Active braking disconnected”.
There are two possibilities:
– The system is temporarily experienc- ing difficulties (for example: sensor
obscured by dirt, mud, snow etc.);
in this case, park the vehicle and
switch off the engine. Clean the de-
tection zone of the radar. When you
next start the engine, the warning
light and the message go out;
– If this is not the case, this may arise from another cause; contact an
Approved Dealer.

2.44
Activation/deactivation
Vehicles fitted with a navigation
system
On the multifunction screen 2, select
the “vehicle” menu, “Driving assist-
ance”, and “Blind spot alert”, and then
choose “ON” or “OFF”.
You can access menu “Driving as-
sistance” directly from button 3
\b.
Vehicles not fitted with a navigation
system
– With the vehicle at a standstill, press
and hold the switch 4 OK to access
the settings menu;
– repeatedly press the control 5 up or
down until you reach the “Driving as-
sistance” menu. Press the switch 4
OK;
BLIND SPOT WARNING (2/4)
– repeatedly press the control 5 up or
down until you reach the Blind spot
alert menu, then press the switch 4
OK .
– Press the switch 4 OK again to acti-
vate or deactivate the function.
45
When the engine is started, the system
remembers its position when the igni-
tion was last switched off.
3
2

2.46
Operating faults
If the system detects a fault, the mes-
sage “Check blind spot alert” is dis-
played on the instrument panel. Consult
an authorised dealer.
Note: when the engine is started, the
indicator light 6, display B , flashes
three times. It is normal.
– The system’s detection
range operates according
to a standard lane width. If
you are driving in wide traf-
fic lanes, the system might not
be able to detect a vehicle in the
blind spot.
– The system might be disrupted momentarily if it is exposed to
strong electromagnetic waves
(as beneath high-tension power
lines) or to very poor weather
conditions (heavy rain, snow,
etc.). Remain aware of driving
conditions.
There is a risk of accidents.
BLIND SPOT WARNING (4/4)
Because sensors have
been installed in the bump-
ers, any work (repairs, re-
placements, touching up of
paintwork) must be carried out by a
qualified professional.
6
B
C
D
Conditions for non-function
– If the object is not moving;
– if traffic is heavy;
– the road is winding;
– if front and rear sensors both detect objects at the same time (e.g. when
passing an articulated lorry).
– ...