check engine RENAULT LAGUNA COUPE 2012 X91 / 3.G Owner's Manual

bonnet................................................... (up to the end of the DU)
maintenance: mechanical ...................................... (up to the end of the DU)
4.2
ENG_UD29099_2
Capot moteur (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Jaune NoirNoir texte
Bonnet
Opening the bonnet
Lift the bonnet and release stay 4 from
its holder 5 . For your own safety, it is
very important to fix the stay into re -
tainer 3 in the bonnet.
To open, pull handle
1 located on the
left-hand side of the dashboard.
BOnnet (1/2)
1
2
A
In the event of even a slight
impact involving the radia -
tor grille or bonnet, have
the bonnet lock checked by
an approved dealer as soon as pos-
sible.The engine may be hot
when carrying out opera -
tions in close proximity. In
addition, the engine cooling
fan can come on at any moment.
Risk of injury.
3
4
5
Unlocking the bonnet catch
To unlock, lift tab 2 (hook A will release
the bonnet).
Deactivate the Stop and
Start function for any opera -
tion performed in the engine
compartment.

JauneNoirNoir texte
4.3
ENG_UD29099_2
Capot moteur (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Closing the bonnet
Check that nothing has been left in the
engine compartment.
To close the bonnet, replace stay 4
back into its holder 5, hold the bonnet in
the middle and lower it to 30 cm above
the closed position, then release it. It
will latch automatically under its own
weight.
3
4
5
Ensure that the bonnet is
properly locked.
Check that nothing is pre -
venting the catch from lock-
ing (gravel, cloth, etc.).
BOnnet (2/2)
After carrying out any work
in the engine compart -
ment, check that nothing
has been left behind (cloth,
tools, etc.).
These may damage the engine or
cause a fire.

engine oil ............................................................... (current page)
oil change .............................................................. (current page)
levels: engine oil ......................................................... (current page)
4.4
ENG_UD28951_8
Niveau huile moteur : généralités (X91 - B91 - K91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Jaune NoirNoir texte
Engine oil level:
general information
enGIne OIL LeVeL: general information (1/2)
Minimum oil level warning on
the instrument panel
When the message “test of functions
being checked” appears on the instru -
ment panel, press one of the buttons 3
or 4.
If the level is above the minimum
level : the display shows “oil level cor -
rect accompanied by squares 1 which,
when the level drops, are replaced by
dashes 2.
note: the detailed level cannot be dis-
played if the vehicle was previously
only driven for a short time. If the minimum level has been
reached: the message “Adjust oil level”
and warning light © lights up on
the instrument panel.
It is vital to top up the oil as soon as
possible.
n ote : To advance to trip computer
reading, press button 3 or 4 again.
The display only warns the
driver if the oil level is at the
minimum level. It does not
inform the driver that the oil
level has exceeded the maximum
level as this can only be measured
using a dipstick.
It is normal for an engine to use oil for
lubrication and cooling of moving parts
and it is normal to top up the level be-
tween oil changes.
However, contact your approved
Dealer if more than 0.5 litres is being
consumed every 600 miles (1,000 km)
after the running in period.
Oil change frequency: check the oil
level from time to time and certainly
before any long journey to avoid the
risk of damaging your engine.
Reading the oil level
The oil level should be read with the ve-
hicle on level ground, after the engine
has been switched off for some time.
t he dipstick must be used to read
the exact oil level and make sure
that the maximum level has not been
exceeded (risk of engine damage).
Refer to the following pages.
The instrument panel display only
alerts the driver when the oil level is at
its minimum.
3
4
Oil level
   
12

engine oil capacity ................................ (up to the end of the DU)
4.6
ENG_UD29100_2
Niveau huile moteur : appoint, remplissage (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Jaune NoirNoir texte
– Unscrew cap 1;
– top up the level (as a guide, the ca-
pacity between the minimum and
maximum reading on the dipstick 2
is between 1.5 and 2 litres, depend-
ing on the engine);
– wait for approximately 20 minutes to
allow the oil to flow into the engine;
– check the level using dipstick 2 (as
described above).
Once the operation has been com -
pleted, ensure that the dipstick is
pushed in as far as it will go or that the
cap-type dipstick is completely screwed
in.
Engine oil level: topping up, filling
enGIne OIL LeVeL: topping up/filling (1/2)
t opping up/filling
The vehicle must be parked on level
ground and the engine should be
switched off and cold (for instance,
before the engine is started up for the
first time in the day).
engine oil grade
Refer to the Maintenance Document for
your vehicle.
1
21
2
3.5 V62.0 T
To prevent splashback, you are rec-
ommended to use a funnel to top up
the oil.Do not exceed the max level and
do not forget to refit cap 1 and dip-
stick 2.
1
2
1.5 dCi

levels:coolant ............................................................. (current page)
tanks and reservoirs coolant ............................................................. (current page)
coolant ................................................................... (current page)
4.8
ENG_UD29101_2
Niveaux (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Jaune NoirNoir texte
Levels:
engine coolant
LeVeLS
Coolant
The level when cold should be be -
tween the MIN and MAX marks on the
coolant reservoir 1.
Top this level up when cold before it
reaches the MIN mark. Checking intervals
Check the coolant level regularly
(very severe damage is likely to be
caused to the engine if it runs out of
coolant).
If the level needs to be topped up, only
use products approved by our Technical
Department which ensure:
–
protection against freezing;
– anticorrosion protection of the cool -
ing system.
No operations should be
carried out on the cooling
circuit when the engine is
hot.
Risk of burns.
Consult your approved dealer at
once if you notice an abnormal or
repeated drop in any of the fluid
levels.
1Replacement intervals
Refer to the Maintenance Document for
your vehicle.
Deactivate the Stop and
Start function for any opera -
tion performed in the engine
compartment.

brake fluid .............................................................. (current page)
levels: brake fluid ........................................................ (current page)
tanks and reservoirs brake fluid ........................................................ (current page)
JauneNoirNoir texte
4.9
ENG_UD29101_2
Niveaux (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
brake fluid
LeVeLS (continued)
Brake fluid level
This should be checked frequently,
and immediately if you notice even the
slightest loss in braking efficiency. Level 1
It is normal for the level to drop as the
brake shoes become worn, but it must
never drop lower than the
“MIN" warn-
ing line.
If you wish to check the disc and drum
wear yourself, you should obtain the
document explaining the checking pro-
cedure from our network or from the
manufacturer’s website. t
opping up
After any operation on the hydraulic cir-
cuit, a specialist must replace the fluid.
Only use fluids approved by our
Technical Department (and taken from
a sealed container).
Replacement intervals
Refer to the Maintenance Document for
your vehicle.
1
The engine may be hot
when carrying out opera -
tions in close proximity. In
addition, the engine cooling
fan can come on at any moment.
Risk of injury.

battery................................................... (up to the end of the DU)
4.12
ENG_UD29102_2
Batterie (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Jaune NoirNoir texte
Battery
BAtteR y (1/2)
The engine may be hot
during operations in close
proximity. In addition, the
engine cooling fan may
start at any moment.
Risk of injury.
Depending on the vehicle, the battery is
in the engine compartment or in the lug-
gage compartment.
It is always maintenance-free.
Depending on the vehicle, a system
continuously checks the battery charge
status. If the level drops, the message
“ Battery low start engine ” is displayed
on the instrument panel. In this case,
start the engine. Then the message
“ Battery charging ” appears on the in -
strument panel.
The charge status of your battery can
decrease especially if you use your ve-
hicle:
– for short journeys;
– for driving in town;
– when the temperature drops;
– when the radio is used for extended
periods with the engine switched off
etc.
Handle the battery with care
as it contains sulphuric acid
which must not come into
contact with the eyes or
skin. If it does, wash the affected
area with plenty of cold water. If
necessary, consult a doctor.
Ensure that naked flames, red hot
objects and sparks do not come into
contact with the battery as there is a
risk of explosion.
The battery is a specific
type , please ensure it is
replaced with the same
type. Consult an approved
dealer.
A
123
456
Label A
Observe the indications on the battery:
– 1 naked flames and smoking are for-
bidden;
– 2 eye protection required;
– 3 keep away from children;
– 4 explosive materials;
– 5 please consult the driver’s hand -
book;
– 6 corrosive substances.

5.22
ENG_UD29103_2
Batterie : dépannage (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_5
Battery in the engine compartment
Connect the positive cable A to the
support 1 on the (+) terminal, then to
the (+) terminal 2 of the battery sup -
plying the current.
Connect the negative cable B to the (–)
terminal 3 of the battery supplying the
current and then to the (–) terminal 4 of
the discharged battery.
BA tter Y: breakdown recovery (2/2)
Battery in the luggage compartment
(V6 engines)
Use the terminals in the engine com -
partment.
Turn screw 6 one quarter of a turn to
the right, then pull cover 7 upwards to
access the 8 (+) terminal. Connect the
positive cable A to the support 8 on
the (+) terminal, then to the (+) termi-
nal 3 of the battery supplying the cur -
rent.
Connect the negative cable B to the (–)
terminal 4 of the battery supplying the
current and then to the (–) terminal 5.
Starting the vehicle using the
battery from another vehicle
(continued)
Ensure that there is no risk of contact
between the two vehicles (risk of short
circuiting when the positive terminals
are connected) and that the discharged
battery is properly connected. Switch
off your vehicle ignition.
Start the engine of the vehicle supply -
ing the current and run it at an interme-
diate engine speed.
8
5
6
7
Start the engine, and as soon as it starts running, disconnect cables A and B in
reverse order (4 - 3 - 2 - 1 or 5 - 3 - 2 - 8).
Check that there is no con-
tact between leads A and B
and that the positive lead A
is not touching any metal
parts on the vehicle supplying the
current.
Risk of injury or damage to the ve-
hicle.
Leads A and B must only be con-
nected to the terminals indicated.
1
A
B
1
4
23

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

5.30
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
Jaune NoirNoir texte
OPerA tInG FAuL tS (3/5)
On the road POSSIBLe cAuSeSWHAt tO DO
Vibrations. Tyres not inflated to correct pres-
sures, incorrectly balanced or dam -
aged. Check the tyre pressures: if this is not the
problem, have them checked by an ap
-
proved Dealer.
White smoke from the exhaust. This is not necessarily a fault. Smoke
may be caused by regeneration of the
particle filter.Please refer to the information on “Special
features of diesel versions” in Section 2.
Smoke under the bonnet. Short-circuit or cooling system leak.Stop, switch off the ignition, stand away
from the vehicle and contact an approved
dealer.
The oil pressure warning light comes
on: while cornering or braking The level is too low. Top up the engine oil (refer to the informa-
tion on “Engine oil level – Topping up/refill-
ing” in Section 4).
is slow to go out or remains lit
under acceleration Loss of oil pressure.
Stop the vehicle and contact an approved
Dealer.