2012 RENAULT LAGUNA cooling

bonnet................................................... (up to the end of the DU)
maintenance: mechanical ...................................... (up to the end of the DU)
4.2
ENG_UD28950_3
Capot moteur (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_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.
Unlocking the bonnet catch
To unlock, lift tab 2 (hook A will release
the bonnet).
BOnnet (1/2)
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.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.
1
A
2

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 - Ren\
ault)
ENG_NU_936-5_BK91_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 - Ren\
ault)
ENG_NU_936-5_BK91_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.

JauneNoirNoir texte
4.7
ENG_UD29069_3
Niveau huile moteur : appoint, remplissage (X91 - B91 - K91 - Renault)\
ENG_NU_936-5_BK91_Renault_4
Oil change
S e r v i c e i n t e r v a l : r e f e r t o t h e
Maintenance Document for your vehi -
cle.
Average capacities for oil change
including oil filter
(for information)
2.0 16V engine : 4.4 litres
2.0t engine: 5.4 litres
1.5 dCi engine : 4.5 litres
2.0 dCi engine : 7.4 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.
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.
enGIne OIL LeVeL: topping up/filling (2/2)enGIne OIL CHAnGe
2
112
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_UD29070_5
Niveaux / filtres (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_4
Jaune NoirNoir texte
Levels:
engine coolant
LeVeLS (1/3)
Coolant
With the engine switched off and on
level ground, the level when cold
must be between the « MINI » A and
« MAXI » B marks on coolant reser -
voir 1.
Top this level up when cold before it
reaches the « MINI » 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.
1
Replacement intervals
Refer to the Maintenance Document for
your vehicle.
A
B
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_UD29070_5
Niveaux / filtres (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_4
brake fluid
LeVeLS (2/3)
Brake fluid level
The level should be read with the engine
switched off and on level ground. This
should be checked frequently, and any
time you notice even the slightest loss
in braking efficiency. Level 1
The level normally goes down at the
same time as the brake lining wear,
but it must never go below the « MINI »
warning level.
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_UD29070_5
Niveaux / filtres (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_4
windscreen/headlight washer reservoir
Filters
FIL teR (3/3)/LeVeLS
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 an-
tifreeze 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, cabin filter, diesel fuel filter, etc.)
is scheduled in the maintenance opera
-
tions for your vehicle.
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.

battery................................................... (up to the end of the DU)
4.12
ENG_UD29071_2
Batterie (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_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.
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.
A
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