engine overheat RENAULT MEGANE 2018 Owners Manual

1.81
TRIP COMPUTER AND WARNING SYSTEM: warning message
These appear with the ® warning light and require you to stop immediately, for your own safety, as soon as traf-
fic conditions allow. Stop your engine and do not restart it. Contact an approved Dealer.
Some examples of warning messages are given below. Note: the messages appear on the display either individually or al-
ternately (when there are several messages to be displayed), and may b\
e accompanied by a warning light and/or a beep.
Examples of messages Interpreting the display selected
“Engine failure hazard” Indicates an injection fault, the vehicle’s engine has overheated or there is a
serious engine fault.
“Power steering fault” Indicates a fault in the steering or a problem with the four-wheel drive\
.
“Braking system fault” or “Stop vehicle” Indicates a fault in the braking system. Apply the electronic parking brake ma-
nually and ensure that the vehicle is immobilised using a chock.
“Electric failure DANGER” Indicates a fault in the vehicle battery charging circuit (alternator e\
tc.).
“Puncture” Indicates a puncture on the tyre displayed on the instrument panel.

1.99
WINDSCREEN WASH, WIPE (4/6)
Specific front wiper position
(service position)
This position enables the blades to be
lifted to remove them from the winds-
creen.
It may be useful to:
– to clean the blades;
– to release the blades from the winds-creen in winter;
– replace the blades (refer to the “Wiper blades: replacement” para-
graph in Section 5).
With the ignition on and the engine off,
lower the windscreen wiper stalk fully
(fast continuous wipe position). The
wiper arms stop in a position away from
the bonnet.
To return the blades to position, make
sure they have been placed on the
windscreen, then move the stalk to po-
sition B (stop) with the ignition on.
Before switching on the ignition,
place the wipers on the windscreen.
Otherwise, there may a risk of damage
to the bonnet or the wipers when they
are switched on.
In the event of obstacles on the
windscreen (dirt, snow, ice etc.),
clean the windscreen (including the
central area located behind the inte-
rior rear view mirror) before starting
the wipers (risk of motor overheat-
ing).
If an object is preventing a blade
from moving, it may stop functio-
ning. Remove the obstacle and
reactivate the wiper using the wiper
stalk.
Before any action involving
the windscreen (washing
the vehicle, de-icing,
cleaning the windscreen,
etc.) return stalk 1 to position B
(stop).
Risk of injury and/or damage.
Note: after replacement, to reposition
the blades correctly, make sure the
blades are resting on the windscreen,
switch on the ignition and activate the
wiper control.

2.14
SPECIAL FEATURES OF PETROL VERSIONS
The following operating conditions:
– driving for long periods when the low fuel level warning light is lit;
– using leaded petrol;
– using fuel or lubrication additives which are not approved.
Or operating faults such as:
– faulty ignition system, running out of fuel or disconnected spark plugs re-
sulting in the engine misfiring or cut-
ting out when driving;
– loss of power,
as they may cause the catalytic con-
verter to overheat and thus reduce its
efficiency, or damage it irreparably
and cause heat damage to the vehi-
cle. If you notice any of the above operating
faults, have the necessary repairs car-
ried out as soon as possible by an ap-
proved Dealer.
These faults may be avoided by regu-
larly taking your vehicle to an approved
Dealer at the intervals specified in the
Maintenance document.
Starting problems
To avoid damaging the catalytic con-
verter,
do not keep trying to start the
engine (using the start button, or by
pushing or towing the vehicle) without
having identified and corrected the
starting fault.
If the fault cannot be identified, do not
keep trying to start the engine, but con-
tact an approved Dealer.
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 con-
tact with the hot exhaust system.

2.80
AUTOMATIC TRANSMISSION (2/3)
Driving in manual modeWith the selector lever in position D,
move the lever to the left into the M po-
sition. Shifting the lever or the paddles
repeatedly allows you to change gears
manually:
– to move down through the gears, push the lever forwards or press the
left-hand paddle;
– to move up through the gears, push the lever backwards or press the
right-hand paddle.
The gear selected is displayed on the
instrument panel.
Special casesIn certain driving conditions (for exam-
ple, engine protection, operation of the
Electronic Stability Programme: the au-
tomatic system may change gear auto-
matically. Likewise, to prevent incorrect
manoeuvres, a gear change may be re-
fused by the automatic system: in this
case the gear display flashes for a few
seconds as a warning.
Special circumstances
– If the bends and road surface do
not allow you to stay in automatic
mode (e.g. in the mountains), we
recommend that you change to
manual mode. This will prevent the
automatic gearbox from changing
gear repeatedly when climbing, and
permit engine braking on long de-
scents.
Driving in automatic mode
Put lever 1 into position D.
In most road conditions you will en-
counter, you will not need to touch your
lever again: the gears will change au-
tomatically at the right time and at the
most suitable engine speed because
the automatic system takes into ac-
count the vehicle load and road contour
and adjusts itself to the particular driv-
ing style you have chosen.
Economical driving
When driving, always leave the lever
in position D, keeping the accelerator
pedal lightly depressed to ensure auto-
matic gear changes at a lower engine
speed.
Accelerating and overtaking
Depress the accelerator pedal firmly
and fully (so that it goes beyond the
kickdown point).
This will enable you to change down
to the optimum gear within the
engine range.
When facing uphill, to remain
stopped, do not keep your foot on
the accelerator.
Risk of overheating the automatic
gearbox.

5.35
WIPER BLADES: REPLACEMENT (1/2)
Replacing windscreen wiper
blades 1
With the ignition on and engine
switched off, lower the windscreen
wiper stalk completely: they stop
slightly away from the bonnet.
Lift wiper arm 3, pull tab 2 (move-
ment A) and push the blade upwards.
To refit
Slide the blade along the arm until it
clips on. Make sure that the blade is
correctly locked in position. Return the
windscreen wiper stalk to the park po-
sition.
1
2
3
Check the condition of the wiper
blades. You are responsible for their
service life:
– clean the blades, windscreen and rear screen regularly with soapy
water;
– do not use them when the wind- screen or rear screen are dry;
– free them from the windscreen or rear screen when they have not
been used for a long time.
A
– In frosty weather, make
sure that the wiper blades
are not stuck by ice (to
avoid the risk of the motor
overheating).
– Check the condition of the wiper
blades.
Replace the wiper blades as soon
as they begin to lose efficiency
(approximately once a year).
Whilst changing the blade, take care
not to drop the arm onto the window
after it has been removed as this
may break the window.

5.43
OPERATING FAULTS (5/7)
On the roadPOSSIBLE CAUSESWHAT TO DO
Steering becomes heavy. Assistance overheating.
Fault with the electric assistance
motor.
Fault in the assistance system. Drive carefully at reduced speed, be aware
of the level of force in the steering wheel
needed to turn the wheels. Consult an ap-
proved dealer
The engine is overheating. The cool-
ant temperature indicator is in the
warning zone and warning light
® comes on. Engine cooling fan not working. Stop the vehicle, switch off the engine and
contact an approved dealer.
Coolant leaks. Check the coolant reservoir: it should con- tain fluid. If there is no coolant, consult an
approved dealer as soon as possible.
Coolant boiling in the coolant reser-
voir. Mechanical fault: damaged cylinder
head gasket. Stop the engine.
Contact an approved dealer.
Radiator:
If there is a significant lack of coolant, remember that it must never b\
e topped up using cold coolant while
the engine is very warm. After any procedure on the vehicle which has involved even partial drain\
ing of the cooling
system, it must be refilled with a new mixture prepared in the correct p\
roportions. Reminder: only products approved
by our Technical Department may be used for this purpose.