2012 RENAULT LAGUNA COUPE sensor

1.24
ENG_UD22182_5
Dispositifs complémentaires aux ceintures avant (X91 - D91 - Renault\
)
ENG_NU_939-3_D91_Renault_1
Jaune NoirNoir texte
mETHOds Of REsTRAINT IN AddITION TO THE fRONT sEAT BELTs (2/4)
Load limiter
Above a certain severity of impact, this
mechanism is used to limit the force of
the belt against the body so that it is at
an acceptable level.
Anti-submarining air bag
Located on each of the front seats, it
deploys in order to prevent the occu -
pant from sliding under the seat belt.
Air bags for driver and front
passenger
Fitted to the driver and passenger side.
Depending on the vehicle, the pres -
ence of this equipment is indicated by
the word “air bag” on the steering wheel
and dashboard (air bag zone A ) and
a symbol on the lower section of the
windscreen.
Each air bag system consists of:
– an air bag and gas generator fitted
on the steering wheel for the driver
and in the dashboard for the front
passenger;
– an electronic unit for system monitor-
ing which controls the gas generator
electrical trigger system;
– a single indicator light
å on the
instrument panel;
– remote sensors.
A
The air bag system uses
pyrotechnic principles. This
explains why, when the air
bag inflates, it will gener -
ate heat, produce smoke (this does
not mean that a fire is about to start)
and make a noise upon detonation.
In a situation where an air bag is
required, it will inflate immediately
and this may cause some minor, su-
perficial grazing to the skin or other
problems.

trip computer and warning system.........................(current page)
instrument panel messages ...................................(current page)
warning lights ......................................................... (current page)
instrument panel .................................................... (current page)
1.59
ENG_UD23770_1
Ordinateur de bord : messages d’anomalies de fonctionnement (X91 - B\
91 - K91 - Renault)
ENG_NU_939-3_D91_Renault_1
TRIp cOmpUTER ANd WARNINg sYsTEm: operating fault messages
These appear with the © warning light and mean that you should drive very carefully to an authorised dealer as
soon as possible. If you fail to follow this recommendation, you risk da\
maging your vehicle.
They disappear when the display selection key is pressed or after several seconds and are stored in the computer log. The
©
warning light stays on. Examples of operating fault messages are given i\
n the following pages.
Examples of messages Interpreting the display selected
« clean diesel filter » Indicates the presence of water in the diesel filter, contact your approved dealer as soon as
possible.
« check lighting »Indicates a fault in the directional headlights.
« check vehicle » Indicates a fault in one of the pedal sensors, battery management system\
or oil level sensor.
« check airbag » Indicates a fault in the restraint system in addition to the seat belts. In the event of an accident,
it is possible that they may not be triggered.
« check anti-
pollution system »Indicates a fault in the vehicle’s particle filter system.
« change battery » Indicates that it is necessary to change the vehicle’s battery; see information on the “battery”
in section 4.

1.69
ENG_UD11971_2
Essuie-vitre / lave-vitre avant (X91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_1
Screen washer/wiper
v ehicle fitted with windscreen
wiper rain sensor
A park
B automatic wiper function.
When this position is selected, the
system detects water on the wind -
screen and triggers the wipers at a
suitable wiping speed. It is possi -
ble to change the triggering thresh -
old and the time sweeps by turning
ring 2:
– E: minimum sensitivity
– F: maximum sensitivity
note: in foggy weather or during
snowfalls, the wiping is not automati-
cally triggered and remains under
the driver’s control.
C normal wiping speed
D fast wiping speed
special note
When driving the vehicle
, the wiping
speed slows down whenever the ve -
hicle stops. For example, fast wiping
speed will slow to normal wiping speed.
As soon as the vehicle moves off again,
wiping will return to the speed originally
selected.
If stalk 1 is operated, it overrides and
cancels the automatic function.
v ehicle fitted with intermittent
windscreen wipers
A park
B intermittent wiping
The wipers will pause for several
seconds between sweeps. It is pos-
sible to change the time between
sweeps by turning ring 2.
C normal wiping speed
D fast wiping speed
scREEN WAsHER/WIpER
1
1
A
B
c
d
E
f
2
For all vehicles, position C can be
accessed with the ignition on and
positions B and D can only be ac -
cessed with the engine running.

environment .......................................... (up to the end of the DU)
2.18
ENG_UD25716_1
Environnement (sans marque) (X44 - X45 - X77 - X81 - X85 - X90 - X91 \
- X83 - X61 - TEST - X95 - J95 - R95 - F90 Ph2 - X33 - X47 - X43 - X38 - H79 - X62 - X32 -\
X09 -
ENG_NU_939-3_D91_Renault_2
Environment
eNVIRoNMeNt
emissions
Your vehicle has been designed to
emit fewer greenhouse gases (CO2)
while in use, and therefore to consume
less fuel (eg. 140 g/km, equivalent to
5.3 l/100 km for a diesel vehicle).
Our vehicles are also equipped with a
particle filter system including a cata -
lytic converter, an oxygen sensor and
an active carbon filter (the latter pre -
vents vapour from the fuel tank being
released into the open air).
For certain diesel vehicles, this system
also has a particle filter to reduce the
volume of soot particles emitted.
Please make your own
contribution towards
protecting the environment
too
– Worn parts replaced in the course of
routine vehicle maintenance (vehi -
cle battery, oil filter, air filter, batter -
ies, etc.) and oil containers (empty or
filled with used oil) must be disposed
of through specialist organisations. –
At the end of the vehicle’s service
life, it should be sent to approved
centres to ensure that it is recycled.
– In all cases, comply with local legis -
lation.
Recycling
Your vehicle is 85% recyclable and
95% recoverable.
To achieve these objectives, many of
the vehicle components have been de-
signed to enable them to be recycled.
The materials and structures have
been carefully designed to allow these
components to be easily removed and
reprocessed by specialist companies.
In order to preserve raw material re -
sources, this vehicle incorporates nu -
merous parts made from recycled plas-
tics or renewable materials (vegetable
or animal-derived materials such as
cotton or wool).
Your vehicle has been designed with
respect for the
environment in mind for
its entire service life: during production,
use and at the end of its life.
This commitment is illustrated by the of
the manufacturer eco² signature.Manufacture
Your vehicle has been manufactured at
a factory which complies with a policy
to reduce the environmental impact
on the surrounding areas (reduction of
water and energy consumption, visual
and noise pollution, atmospheric emis-
sions and waste water; sorting and re-
using waste).

tyres ...................................................... (up to the end of the DU)
tyre pressure monitor ............................(up to the end of the DU)
tyre pressure ......................................... (up to the end of the DU)
driving ................................................... (up to the end of the DU)
2.19
ENG_UD22198_5
Système de surveillance de pression des pneumatiques (X91 - B91 - K9\
1 - Renault)
ENG_NU_939-3_D91_Renault_2
This system monitors the tyre pressure.
Information is displayed:
– with the ignition on, when scrolling
through the trip computer and warn-
ing system information by pressing
control 2 (refer to the information
on the “trip computer and warning
system” in Section 1);
– or if there is a fault when driving
(refer to the following page to find out
more about the warning messages).
Tyre pressure monitor
This function is an addi -
tional driving aid.
However, the function does
not take the place of the
driver. It cannot, therefore, under
any circumstances replace the vig -
ilance or the responsibility of the
driver.
Check the tyre pressures, including
the emergency spare wheel, once a
month.
tyRe PReSSURe MoNItoR (1/3)
If the vehicle is equipped with the func-
tion, this system monitors the tyre pres-
sure.
operating principle
Each wheel (except for the emergency
spare wheel) has a sensor in the infla-
tion valve which periodically measures
the tyre pressure.
The system informs the driver via the
trip computer and warning system 1
that the tyres are sufficiently inflated
and warns if they are underinflated or
leaking.
t he tyre pressure can be adjusted
when cold (refer to the information on
“Tyre pressures”).
If tyre pressures cannot be checked
when the tyres are cold, the recom -
mended pressures must be increased
by 0.2 to 0.3 bar (3 PSI).
Never deflate a hot tyre.1
2
Changing a wheel
The system may take sev -
eral minutes depending on
use for the new wheel po -
sitions and pressures to be recog -
nised; check the tyre pressures after
all operations.

2.20
ENG_UD22198_5
Système de surveillance de pression des pneumatiques (X91 - B91 - K9\
1 - Renault)
ENG_NU_939-3_D91_Renault_2
Jaune NoirNoir texte
Display
Display 1 on the instrument panel in -
forms you of any tyre pressure faults
(flat tyre, punctured tyre, system fault,
etc.).
tyRe PReSSURe MoNItoR (2/3)
1
“Check tyre pressure”
A shaded wheel B indicates a deflated
tyre.
“Inflate tyres to motorway pressure”
The tyre pressure is not suitable for the
speed of travel. Slow down or inflate all
four tyres to motorway pressure (refer
to the information on “Tyre pressures”).
“Puncture”
Wheel B indicates that the tyre con -
cerned is punctured or severely un -
derinflated. Replace it or contact an
approved dealer if it is punctured. Top
up the tyre pressure if the wheel is de-
flated.
This message appears along with the
® warning light.
“t
yre sensors absent” or “check
tyre sensors”
One wheel A disappears, indicating
that the sensor on this wheel is missing
or faulty (e.g. if the emergency spare
wheel is fitted).
a
B

JauneNoirNoir texte
2.21
ENG_UD22198_5
Système de surveillance de pression des pneumatiques (X91 - B91 - K9\
1 - Renault)
ENG_NU_939-3_D91_Renault_2
Interchangeability of wheelsIf you wish to swap the wheels around,
please consult an approved dealer to
reinitialise the system.
emergency spare wheelIf the vehicle is equipped with an emer-
gency spare wheel, it will not have a
sensor. When it is fitted to the vehicle,
the message “tyre sensors absent” is
displayed on the instrument panel.
Replacing wheels/tyres
This system requires specific equip -
ment (wheels, tyres, hubcaps, etc.).
Contact an approved dealer to fit new
tyres and to find out about accessories
compatible with the system and avail -
able from manufacturer ’s accessory
outlets: the use of any other accessory
could affect the correct operation of the
system or damage the system.
t yre repair products
Because the valves are specially de -
signed, only use products approved by
our Technical Department.
tyRe PReSSURe MoNItoR (3/3)
Each of the sensors incorporated in the valves 3 is dedicated to a single
wheel: under no circumstances should you swap the wheels, without re-
setting the system.
There is a risk of incorrect information which could have serious conse-
quences.
3
3
4
CD
eF
To mark the correct position of the
wheel, note the colour of ring 4 (after
cleaning, if necessary) on each valve:
C yellow ring
D black ring
E red ring
F green ring

2.24
ENG_UD27695_10
Dispositifs de correction et d’assistance à la de conduite (X91 -\
B91 - K91 - D91 - Renault)
ENG_NU_939-3_D91_Renault_2
Jaune NoirNoir texte
DRIVeR CoRReCtIoN DeVICeS aND aIDS (3/5)
electronic stability control
eSC with understeer control
and traction control aSR
electronic stability control eSC
This system helps you to keep control
of the vehicle in critical driving condi -
tions (avoiding an obstacle, loss of grip
on a bend, etc.).
operating principle
A sensor in the steering wheel detects
the direction selected by the driver.
Other sensors throughout the vehicle
measure the actual direction.
The system compares driver input to
the actual trajectory of the vehicle and
corrects the trajectory, if necessary, by
controlling the braking of certain wheels
and/or engine power. In the event that
the system is engaged, warning light
 flashes on the instrument panel. Understeer control
This system optimises the action of the
ESC in the case of pronounced under
-
steer (loss of front axle road holding).
t raction control (aSR)
This system helps to limit wheelspin of
the drive wheels and to control the ve-
hicle when pulling away accelerating or
decelerating.
operating principle
Using the wheel sensors, the system
measures and compares the speed of
the drive wheels at all times and slows
down their over-rotation. If a wheel is
starting to slip, the system brakes au -
tomatically until the drive supplied be -
comes compatible with the level of grip
under the wheel again.
The system also adjusts the engine
speed to the grip available under the
wheels, independently of the pressure
exerted on the accelerator pedal. operating faults
When the system detects an operat
-
ing fault the message “Check ESC” and
warning light
© appear on the in-
strument panel. In this case, the ESC
and ASR are deactivated.
Consult an approved dealer.