engine overheat RENAULT LAGUNA 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_936-5_BK91_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 warning system screen.

headlight washer ................................................... (current page)
JauneNoirNoir texte
1.71
ENG_UD23636_5
Essuie-vitre / lave-vitre avant (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_1
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.
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.
A longer pull will trigger three sweeps
of the wipers followed, a few seconds
later, by a fourth, in addition to the wind -
screen washer.
fRONT WINdscREEN WAsH/WIpE (2/2)
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)
and the rear screen before starting
the wipers (risk of motor overheat -
ing).
A
B
c
d
When working in the engine
compartment, ensure that
the windscreen wiper stalk
is in position A (park).
Risk of injury.
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.

catalytic converter................................. (up to the end of the DU)
special features of petrol vehicles ........ (up to the end of the DU)
driving ................................................... (up to the end of the DU)
2.9
ENG_UD13347_4
Particularités des versions essence (X84 - B84 - C84 - E84 - L84 - K84 - J84 - X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Special features of petrol versions
SPeCIaL featUReS of PetRoL veRSIoNS
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.
The following operating conditions
should be avoided:
– 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;
may cause the catalytic converter to
overheat, reducing its efficiency which
may irreparably damage it and cause
heat damage to the vehicle. 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
cause of the fault.
If the fault cannot be identified, do not
continue to try and start the engine, but
contact an approved dealer.

wiper blades ......................................... (up to the end of the DU)
wipers blades ............................................. (up to the end of the DU)
5.30
ENG_UD20530_1
Balais d’essuie-vitres (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_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 ef-
ficiency (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.
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.
rear screen wiper blade 4
– Lift wiper arm 6;
– pivot blade 4 until some resistance is
met (movement C);
– depending on the vehicle, press
tab 5, then remove the blade by pull -
ing it (movement B).
t o refit
To refit the wiper blade, proceed in re-
verse order to removal. Make sure that
the blade is correctly locked in position.
A
1
2
3
B
4
c
5
6

5.36
ENG_UD28899_2
Anomalies de fonctionnement (X91 - B91 - K91 - D91 - X95 - B95 - D95 - \
K95 - J95 - R95 - X98 - Renault)
ENG_NU_936-5_BK91_Renault_5
Jaune NoirNoir texte
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.