engine overheat RENAULT LAGUNA COUPE 2012 X91 / 3.G Owners Manual

trip computer and warning system.........................(current page)
warning lights ......................................................... (current page)
instrument panel messages ...................................(current page)
instrument panel .................................................... (current page)
1.60
ENG_UD23771_1
Ordinateur de bord : messages d’alerte (X91 - B91 - K91 - Renault)
ENG_NU_939-3_D91_Renault_1
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 traffic
conditions allow. stop your engine and do not restart it. contact an approved dealer.
Examples of warning messages are given in the following pages. Note: the messages appear on the display either individually
or alternately (when there are several messages to be displayed), and \
may be accompanied by a warning light and/or a beep.
Examples of messages Interpreting the display selected
“Injection system fault” Indicates a fault in the injection system.
“Engine failure hazard ”
Indicates that the vehicle has a serious engine fault.
“Engine overheating ”
Indicates that the engine is overheating.
“power steering fault” or “Risk of steering locking ”Indicates a fault in the steering.
“parking brake fault” or “Stop vehicle ”Indicates an electronic parking brake fault. Apply the electronic parking brake manually and
ensure that the vehicle is immobilised using a chock.
“Battery charging fault” Indicates a fault with the vehicle’s battery charging circuit.
“Oil pressure fault” Indicates an engine oil pressure fault.
“puncture” Indicates a puncture on the wheel displayed on the trip computer and war\
ning system screen.

headlight washer ................................................... (current page)
1.70
ENG_UD11971_2
Essuie-vitre / lave-vitre avant (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_1
Note: with the engine switched off or
when the windscreen wiper is set to in-
termittent, a longer pull will trigger three
sweeps of the wipers followed, a few
seconds later, by a fourth, in addition to
the windscreen washer.
Headlight washers
Headlights on
On equipped vehicles, hold stalk 1
pulled towards you for about 1 second,
and the headlight washers and wind -
screen washers will be activated at the
same time.
Note: when the minimum windscreen
washer fluid level is reached, the head -
light washer system may be deprimed.
Fill the windscreen washer fluid and
then activate the windscreen washer,
with the engine running , to reprime
the system.
Before any action on the
windscreen (washing the
vehicle, de-icing, cleaning
the windscreen, etc.) return
stalk 1 to position A (park).
Risk of injury and/or damage.
Windscreen washer
With the ignition on, pull stalk 1 then
release.
A brief pull will trigger a single sweep
of the wipers, in addition to the wind -
screen washer.
scREEN WAsHER/WIpER (continued)
1
A
B
c
d
Check the condition of the wiper blades. You are responsible for their service life:
– they must remain clean: clean the blades and the windscreen regularly with
soapy water;
– do not use them when the windscreen is dry;
– free them from the windscreen when they have not been used for a long time.
In all cases, replace them as soon as they begin to lose efficiency: approximately
once a year.
1
In freezing or snowy weather, ensure
they are not stuck to the windscreen
(including the central area located
behind the interior rear-view mirror)
before starting the wipers (risk of
motor overheating).

special features of petrol vehicles ........ (up to the end of the DU)
catalytic converter ................................. (up to the end of the DU)
driving ................................................... (up to the end of the DU)
catalytic converter ................................. (up to the end of the DU)
2.9
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Particularités des versions essence (X85 - B85 - C85 - S85 - K85 - R\
enault)
ENG_NU_939-3_D91_Renault_2
Special features of petrol versions
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 Service Booklet.
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
contact with the hot exhaust system.

wiper blades ......................................... (up to the end of the DU)
wipers blades ............................................. (up to the end of the DU)
5.25
ENG_UD4848_1
Balais d’essuie-vitres (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_5
Wipers (replacing blades)
WInDScreen WIPer BLADeS
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.
t o 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.– 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.
1
2
3
Check the condition of the wiper
blades. You are responsible for their
service life:
– clean the blades and the wind -
screen regularly with soapy
water;
– do not use them when the wind -
screen is dry;
– free them from the windscreen
when they have not been used
for a long time.
A

JauneNoirNoir texte
5.31
ENG_UD28899_2
Anomalies de fonctionnement (X91 - B91 - K91 - D91 - X95 - B95 - D95 - \
K95 - J95 - R95 - X98 - Renault)
ENG_NU_939-3_D91_Renault_5
OPerA tInG FAuL tS (4/5)
On the road POSSIBLe cAuSeSWHAt tO DO
Steering becomes heavy. Assistance overheating.Consult an approved 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 be topped up using cold coolant while
the engine is very warm. After any procedure on the vehicle which has involved even partial draining of the cooling
system, it must be refilled with a new mixture prepared in the correct proportions. Reminder: only products approved
by our Technical Department may be used for this purpose.