warning RENAULT TWINGO RS 2009 2.G Air Conditioning User Guide

61A-58
HEATING
Passenger compartment fan assembly control unit: Removal - Refitting
LEFT-HAND DRIVE
61A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of compo-
nents)(MR 413, 88C, Airbags and seat belt preten-
sioners).
aDisconnect the battery (see ) (MR 411, 80A, Bat-
tery).
aUnclip the upper storage compartment (1) on the
driver's side using the (Car. 1363).
aRemove:
-the passenger's front airbag (see Passenger's
frontal airbag: Removal - Refitting) (MR 411,
88C, Airbags and pretensioners),
-the instrument panel (see Instrument panel: Re-
moval - Refitting) (MR 411, 83A, Instrument pan-
el).aUnclip the "trim - air vent" assembly (2) .
aDisconnect the hazard warning lights switch connec-
tor.
aUnclip:
-the fuse access flap (3) ,
-the dashboard lower trim. Special tooling required
Car. 1363Set of tr im removal levers.
Equipment required
Diagnostic tool
AIR CONDITIONING or STANDARD HEATING
119502
119518
119506

61A-61
HEATING
Passenger compartment fan assembly control unit: Removal - Refitting
LEFT-HAND DRIVE
61A
aConnect the blower unit control unit connector.
II - FINAL OPERATION.
aRefit:
-the steering wheel lower cover,
-the steering wheel lower cover bolt.
aConnect the connectors to the lower trim on the
dashboard.
aClip on:
-the dashboard lower trim,
-the fuse access flap.
aConnect the hazard warning lights switch connector.
aClip on the "trim - air vent" assembly.
aRefit:
-the instrument panel (see Instrument panel: Re-
moval - Refitting) (MR 411, 83A, Instrument pan-
el),
-the passenger's front airbag (see Passenger's
frontal airbag: Removal - Refitting) (MR 411,
88C, Airbags and pretensioners).
aClip on the upper storage compartment on the driv-
er’s side.
aConnect the battery (see ) (MR 411, 80A, Battery).
aUnlock the airbag computer using the Diagnostic
tool (see Fault finding - Replacement of compo-
nents)(MR 413, 88C, Airbags and seat belt preten-
sioners). AIR CONDITIONING or STANDARD HEATING

61A-62
HEATING
Passenger compartment fan assembly control unit: Removal - Refitting
RIGHT-HAND DRIVE
61A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(MR 413, 88C, Airbags and pretensioners).
aDisconnect the battery (see ) (MR 411, 80A, Bat-
tery).
aUnclip the upper storage compartment (1) on the
driver's side using the (Car. 1363).
aRemove the passenger's front airbag (see Passen-
ger's frontal airbag: Removal - Refitting) (MR
411, 88C, Airbags and seat belt pretensioners).aRemove the instrument panel (see Instrument pan-
el: Removal - Refitting) (MR 411, 83A, Instrument
panel).
aUnclip the "trim - air vent" assembly.
aDisconnect the hazard warning lights switch connec-
tor. Special tooling required
Car. 1363Set of tr im removal levers.
Equipment required
Diagnostic tool
AIR CONDITIONING or STANDARD HEATING
124106
AIR CONDITIONING or STANDARD HEATING
124105

61A-64
HEATING
Passenger compartment fan assembly control unit: Removal - Refitting
RIGHT-HAND DRIVE
61A
aRemove:
-the blower unit control unit bolts (7) ,
-the blower unit control unit (8) .
REFITTING
I - REFITTING OPERATION FOR PART
CONCERNED
aRefit:
-the blower unit control unit,
-the bolts to the blower unit control unit.
aFit the fan assembly control unit electrical wiring.
aConnect the blower unit control unit connector.
aRefit:
-the blower unit control unit,
-the bolts to the blower unit control unit.aConnect the blower unit control unit connector.
II - FINAL OPERATION.
aConnect the hazard warning lights switch connector.
aClip on the "trim - air vent" assembly.
aRefit the instrument panel (see Instrument panel:
Removal - Refitting) (MR 411, 83A, Instrument
panel).
aRefit the passenger's front airbag (see Passenger's
frontal airbag: Removal - Refitting) (MR 411, 88C,
Airbags and seat belt pretensioners).
aClip on the upper storage compartment on the driv-
er’s side.
aConnect the battery (see ) (MR 411, 80A, Battery).
aUnlock the airbag computer using the Diagnostic
tool (see Fault finding - Replacement of compo-
nents) (MR 413, 88C, Airbags and pretensioners).
124100
AIR CONDITIONING or STANDARD HEATING
CLIMATE CONTROL
AIR CONDITIONING or STANDARD HEATING
AIR CONDITIONING or STANDARD HEATING

61A-65
HEATING
Control panel: Removal - Refitting
61A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aLock the airbag computer using the Diagnostic tool
(see Fault finding - Replacement of components)
(MR 413, 88C, Airbags and seat belt pretensioners).
aDisconnect the battery (see ) (MR 411, 80A, Bat-
tery).
aUnclip the upper storage compartment (1) on the
driver's side using the (Car. 1363).
aRemove:
-the passenger's front airbag (see Passenger's
frontal airbag: Removal - Refitting) (MR 411,
88C, Airbags and pretensioners),
-the instrument panel (see Instrument panel: Re-
moval - Refitting) (MR 411, 83A, Instrument pan-
el).aUnclip the « trim - air vent » assembly (2) .
aDisconnect the hazard warning lights switch connec-
tor. Special tooling required
Car. 1363Set of tr im removal levers.
Equipment required
Diagnostic tool
119502
119518

61A-67
HEATING
Control panel: Removal - Refitting
61A
aConnect the control panel connectors.
aPress on the tab.
aFit the control panel ball joint.
aClip on the air distribution control cable.
aPress on the tab.
aFit the control panel ball joint.
aClip on the air mixing control cable.
aFit the control panel ball joint.
aClip on the recirculation control cable.
aConnect the control panel connector.
II - FINAL OPERATION.
aConnect the hazard warning lights switch connector.
aClip on the « trim - air vent » assembly.
aRefit:
-the instrument panel (see Instrument panel: Re-
moval - Refitting) (MR 411, 83A, Instrument pan-
el),
-the passenger's front airbag (see Passenger's
frontal airbag: Removal - Refitting) (MR 411,
88C, Airbags and pretensioners).
aClip on the upper storage compartment on the driv-
er's side.
aConnect the battery (see ) (MR 411, 80A, Battery).
aUnlock the airbag computer using the Diagnostic
tool (see Fault finding - Replacement of compo-
nents) (MR 413, 88C, Airbags and seat belt preten-
sioners). CLIMATE CONTROL
AIR CONDITIONING or STANDARD HEATING

62A-1
AIR CONDITIONING
Air conditioning: Precautions for the repair
AIR CONDITIONING or CLIMATE CONTROL
62A
I - SAFETY
Refrigerant is heavier than air. As a result there is a risk
of asphyxia for those working close to the ground and
less than 5 m away from the working area (pit, well, air
vents, etc.).
Switch on gas extraction systems.
At temperatures above 100˚C, the refrigerant will de-
compose and produce a highly irritant gas.
II - GENERAL RECOMMENDATIONS
It is possible to place components in the drying oven
after painting or to carry out work near the system if the
temperature does not exceed 80˚C.It is essential to follow the routing of the connecting
pipes.
Ensure that the refrigerant connecting pipes are cor-
rectly fitted so that they will not come into contact with
metal parts in the engine compartment. IMPORTANT
The following must be worn when handling refrige-
rant:
-gloves,
-protective goggles (with side shields if possible).
In the event of refrigerant fluid coming into contact
with the eyes, rinse well with clean water continu-
ously for 15 minutes. If possible, have an eye rinse
unit available.
If refr igerant comes into contact with your eyes,
consult a doctor immediately. Inform the doctor that
the burns were caused by R134A refrigerant.
In the event of contact with other unprotected parts
of the body (event though the safety advice has
been observed), r inse well with clean water continu-
ously for 15 minutes.
IMPORTANT
Work requiring the use of refrigerant must be car-
ried out in a well-ventilated area.
The refrigerant must not be stored in a shaft, a pit,
a hermetically sealed room, etc.
Refrigerants are colourless and odourless fluids.
IMPORTANT
It is forbidden to smoke close to an open refrigerant
circuit.
IMPORTANT
To prevent refrigerant from leaking, never repair a
faulty air conditioning circuit component.
Replace all faulty components.
WARNING
In order to avoid any refrigerant leaks, do not dam-
age (deform, twist, etc.) the pipe.
WARNING
To avoid damaging the surface of the air condition-
ing pipes when removing the seals, do not use a
tool with a metallic end piece.
WARNING
To prevent moisture from entering the system,
place plugs on the cold loop components which are
open to the air.
WARNING
To prevent any leaks, check that the seal and sur-
face of the pipe are in good condition. The seal and
the surface must be clean and free from scratches.
WARNING
Lubricants are not mutually compatible: always
observe the type and quantity of oil recommended
for each compressor even when topping up as this
could damage the cold loop components.
Always close the oil cans again after use to keep
moisture out and never use oil contained in a can
that has been open for a long time (viscous appear-
ance).

62A-4
AIR CONDITIONING
Air conditioning: Check
AIR CONDITIONING or CLIMATE CONTROL
62A
I - PREPARATION OPERATION FOR THE
MEASUREMENT DEVICE
aCheck that the measurement device functions prop-
erly (see the device's instruction manual).
aSet units to ˚C.
aSet the device's sensitivity to 0.1˚C.
aSet the reading mode to (∆T) = (T1 - T2)aCheck the two sensors T1 and T2 in order to calcu-
late the correction (∆) to be applied to the measure-
ment (T1 - T2). the two sensors must indicate the
same measurement under the same conditions.
Check the sensors by:
-bringing the ends of the 2 sensors together until
they touch,
-placing the sensors in the air flow of an air vent,
-setting the passenger compartment fan assembly
to top speed.
-waiting for the value to become stable.
-recording the correction value (∆). Equipment required
Dual-sensor temperature measuring device
Note:
When performing RENAULT maintenance, check
the air conditioning system at the end of the vehi-
cle's maintenance program so that the engine will
be cold.
119360
119358
Note:
It is not necessary to start the vehicle. The
device display is in mode (∆T) = (T1 - T2).
WARNING
Note the diff erence and sign as soon as the tem-
per ature becomes stable.
Calculate the correction (∆) = - (T1 - T2) to be
applied to the measurement (∆T).
Examples:
If (T1 - T2) = - 0.3˚C, correct the measurement
(∆T) by (∆) = + 0.3˚C
If (T1 - T2) = + 0.3˚C, correct the measurement
(∆T) by (∆) = - 0.3˚C

62A-7
AIR CONDITIONING
Refrigerant circuit: Check
AIR CONDITIONING or CLIMATE CONTROL
62A
There are several types of detector:
-electronic detectors,
-trace detectors.
Check that the air conditioning system is operating cor-
rectly (see 62A, Air conditioning, Air conditioning:
Check, page 62A-4) .
REFRIGERANT CIRCUIT SEALING CHECKING
OPERATION
1 - Electronic detectors:
a
aSwitch on the electronic detector.
aStart the engine.
aLet the air conditioning system run for 15 minutes.
aSwitch off the engine.aCheck the sealing of the refrigerant circuit using the
electronic trace detector (follow the trace of the cir-
cuit as closely as possible, to limit variations due to
other gases).
2 - Trace detectors
a
aCheck for dye on the cold loop components with the
ultraviolet light.
aInject the dye.
aStart the engine.
aLet the air conditioning system run for 15 minutes.
aSwitch off the engine.
aCheck the refrigerant circuit sealing by scanning the
circuit with the ultraviolet light.
aAffix a label (supplied with the dye capsule), to indi-
cate that dye has been used (as close as possible to
the filler valves). Equipment required
Diagnostic tool
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 62A, Air conditioning, Air condition-
ing: Precautions for the repair, page 62A-1) .
Note:
After any work on air conditioning circuit leaks on
the Laguna II, Vel Satis and Espace IV, check that
filling fault DF033 Refrigerant is not present, using
the Diagnostic tool. If it is present, clear it. The
compressor cannot operate until the fault is cleared.
Note:
To carry out an after repair check, use the proce-
dure for the electronic detector (1). To carry out a
more thorough check for leaks, use a trace detector
(2).
WARNING
Consult the device's operating manual to avoid
incorrect use.
Note:
If replacing a defective part (see 62A, Air condi-
tioning).
WARNING
Consult the device's operating manual to avoid
incorrect use.
WARNING
To avoid damaging the cold loop components
(corrosions , etc.), do not use dye if the traces
reveal that some product has already been
injected.
Note:
If replacing a defective part (see 62A, Air condi-
tioning).

62A-8
AIR CONDITIONING
Refrigerant circuit: Draining - Filling
AIR CONDITIONING or CLIMATE CONTROL
62A
Equipment required
refrigerant charging station
IMPORTANT
Consult the safety and cleanliness advice and oper-
ation recommendations before carrying out any
repair (see 62A, Air conditioning, Air condition-
ing: Precautions for the repair, page 62A-1) .
WARNING
Consult the device's operating manual to avoid
incorrect use.
WARNING
To avoid damaging the cold loop components (cor-
rosions, etc.), do not use dye if the traces reveal
that some product has already been injected.
Note:
A summary table gives the quantities of refrigerant
in the system according to the engine type (see
62A, Air conditioning, Air conditioning: Parts
and consumables for the repair, page 62A-2) .