2012 RENAULT LAGUNA COUPE maintenance

4.1
ENG_UD29930_4
Sommaire 4 (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Section 4: Maintenance
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2
Engine oil level: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4
general information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.4
Engine oil level: topping up, filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.6
Engine oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.7
Levels: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8
engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.8
brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.9
windscreen/headlight washer reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.10
Tyre pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.11
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.12
Bodywork maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.14
Interior trim maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.16

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.

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

filteroil filter ............................................................. (current page)
JauneNoirNoir texte
4.7
ENG_UD29100_2
Niveau huile moteur : appoint, remplissage (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
Engine oil change
enGIne OIL LeVeL: topping up/filling (2/2)enGIne OIL CHAnGe
Oil change
Interval: refer to the maintenance doc-
ument for your vehicle.
Average capacities for oil change
including oil filter
(for information)
engine 2.0t : 5.4 litres
engine 3.5 V6 : 5.0 litres
engine 1.5 dCi : 4.5 litres
engine 2.0 dCi : 7.4 litres
engine V6 dCi : 6.8 litres
engine oil grade
Refer to the Maintenance Document for
your vehicle.
Consult your approved Dealer at
once if you notice an abnormal or
repeated drop in any of the fluid
levels.
Never run the engine in an
enclosed space as exhaust
gases are poisonous.
Filling: take care when
topping up the oil that
no oil drips onto engine
components - risk of fire.
Remember to refit the cap securely
as there is a risk of fire if oil splashes
onto hot engine components.
e ngine oil change : if you
are changing the oil when
the engine is hot, be careful
not to scald yourself if the
oil overflows.
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.
121
2
2.0 dCi
V6 dCi
Deactivate the Stop and
Start function for any opera -
tion performed in the engine
compartment.

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.

levels:windscreen washer reservoir ........................... (current page)
windscreen washer ................................................ (current page)
filter air filter ............................................................. (current page)
filter passenger compartment filter .......................... (current page)
filter oil filter ............................................................. (current page)
filter diesel filter ........................................................ (current page)
tanks and reservoirs: windscreen washer .......................................... (current page)
4.10
ENG_UD29101_2
Niveaux (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
windscreen/headlight washer reservoir
Filters
LeVeLS (continued)/FIL teRS
Windscreen/headlight washer
reservoir
topping up
Open cap 1 , fill until you can see the
fluid, then refit the cap. Liquid
Screen wash product (product with
antifreeze in winter).
Jets
Use a tool such as a needle to adjust
the height of the windscreen washer
jets.
Filters
The replacement of filter elements (air
filter, passenger compartment filter,
diesel filter, etc.) is scheduled in the
maintenance operations for your vehi
-
cle.
Replacement intervals for filter el -
ements: refer to the Maintenance
Document for your vehicle.
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.
1
nOte
Depending on the vehicle, to find
out the fluid level, open cap 1 and
pull out the dipstick.Deactivate the Stop and
Start function for any opera -
tion performed in the engine
compartment.

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.