2012 RENAULT LAGUNA COUPE Owners Manual

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.

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

JauneNoirNoir texte
4.5
ENG_UD28951_8
Niveau huile moteur : généralités (X91 - B91 - K91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_4
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: general information (2/2)
Reading the level using the
dipstick
– remove the dipstick (refer to the fol-
lowing pages for its location) and
wipe it with a clean lint-free cloth;
– push the dipstick in as far as it will go
(for vehicles equipped with a “cap -
type dipstick” C , screw the cap in
completely);
– take out the dipstick again;
– read the level: it should never fall
below minimum mark A or exceed
maximum mark B.
Consult your approved Dealer at
once if you notice an abnormal or
repeated drop in any of the fluid
levels.
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.
A
B
C
B
A
exceeding the maximum
engine oil level
The oil level should only be read with
the dipstick as explained above.
If the oil level exceeds the maximum
level, do not start your vehicle and
contact an approved Dealer.
Under no circumstances
should maximum filling
level B be exceeded: this
could damage the engine
and the catalytic converter.
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.