2004 DACIA SUPERNOVA cooling

19 - 22
19
COOLING - EX HA U ST - FU EL TANK
The lid of the tank is taken apart, together with the fitting.
The petrol pump is disentangled by unclamping off from the stand of the protecting
vessel.
R
E-MOUNT ING
It is done in the reverse orde r of the taking apart opera tions.
ELECTRIC PETROL PUMP
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HEATING
61
61 - 2
DISMOUNTING
Disconnect the battery.
Drain the cooling system.
Dismount the attachment
collar of the hoses
on the heating radiator. Clog the hoses of the he ating radiator by
means of the device MOT 453.
Dismount the documents compartment.
Dismount the central console.
Dismount the control climate control.
Disconnect the airflow pipes from the climate
control unit. Dismount the nuts and the attachment screws
of the climate control unit from the carriage body.
Release the climate control unit.
REMOUNTING
Perform in the reverse order the dismounting operations.
HOUSING MANIFOLD
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AIR CONDITIONING
62
62 - 1
GENERALITIES
GENERALITIES
The purpose of the a ir conditioning unit i s to produce a decrease of t he temperature in the
passengers compartment a nd to obtain a l ower value t emperature compared to the external
environment one, reducing in the same time the air moisture.
MAINTENANCE
For a vehicle equipped with air conditioning, it is recommended a frequent checking of the
refrigerating agent level. During the year it is recommended:
- the checking of the refrigerant fluid filling;
- the cleaning and the air-blowing of the condenser and the cooling radiator fins;
- the checking of the condensation removal pipe on order not to be clogged.
For important leakage repair, for any components replacement (compressor, condenser, etc)
and if moisture was noticed in t he air conditioning circuit, the dryer filter tank is to be replaced
and the unit draining is to be performed. The same is valid also in case the conditioning circuit
remains open without protection covers more than 10 minutes.
IMP ORTANT
Duri ng winter, it is recommended the frequent start of the system, in order to pro-
long the lifetime of the compressor and of the whole system.
The vehicle equipped with an air conditioning system shall be not exposed for more
than 20 minutes i n painting c abin where there are temperatures higher than 80 °C.
It is obligatory the use of the refrigerating agent and compressor oil type prescribed
by the manufacturer. It is absolutely forbidden to perform welding on the elements of the air condition
circ uits. The filling of the air conditioning system can be pe rformed only by m eans of charging
units and observing the instructions of the manufacturer. For mechanical or body
operations it is recommended pi ping protection in order to avoid their disconnection
by accident. Avoid the drip of the oil compressor on the painted vehicle body.
For component replacement implying the circuit draining, it is absolutely necessary
the use of new parts and of a special oil for compressor.
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AIR CONDITIONING
62
62 - 8
THE CONDENSER
The condenser is placed on the cooling radiator, in the front part of the vehicle and is ensuring
the exhaust of the refrigerant heat accumulated at compression.
In order to grant the optimum condenser operation, frequently check if its outside surfaces are
always clean and the air penetration is not stopped. Also, check the condenser pipes in order not
to show deformations. CONDENSER
CO
NDENSOR REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the cooling circuit.
Dismount the pipes connected to the condenser.
Dismount the radiator-condenser assembly.
Separate t he cooling radiator from the condenser.
ATTENT ION:
A void the possible deformation of t he ducts and fi nned plates.
Replace the condenser.
REMOUNTING
Perform the dismounting operations in the reverse order.
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AIR CONDITIONING
62
62 - 13
Defective cooling
Is climate
blower working ?
Check the bl ower fuse and relay.
Are they defective?
Supply the blower motor
at (+12 V).
D oes it works?
Replace the climate control
switch or repair the electric
circuit.
Replace them
No
Ye s
Ye s
Change
blower.
No
No
Adequate air flow ?
Check t he a irflow fl aps
operation and the air ducts
integrity.
Compressor belt tensioning is good?
Yes Ye s
No
Any refrigerant fluid leakage
in the system ?
No
Ye s
Ye s
Is compressor clutch supplied with (+ 12 V)?
No
Ye s N o
Clutch is coupling the
compressor?
Replace the therm ostatic
expansion valve.
Ye s
No Check the electri c circ uit
for supplying and control.
Detect th
e refri ge ra nt fl ui d
leakage cause . Perform refilling.
Pressure controller is working?
Replace it.
Reface
i tensiunea curelei
Replace it.
No
Ye s DIAGNOSIS
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83
INSTRUMENT PANEL
CONNECTOR C
1. Instrum ent panel lighting
2. Ground
3. Anti starting indicator
4. Supply (+ IC)
5. Free
6. Injection failure indicator
CO NNECTOR D
1. Battery charging circuit failure indicator
2. Fuel minimum level warning
3. Free
4. Free
5. Free
6. Free
7. Free
8. Free
83-2
The corresponden
ce between the positions from A,B,C,D connectors of the instrument panel
and the components of the vehicle electric equipment is the following :
CONNECTOR A
1. Free
2. Rear window defrosting indicator
3. RPM
4. Cooling fluid temperature indicator
5. Oil pressure warning
6. Cooling fluid temperature warning
7. Left turning indicator
8. Left turning indicator
9. Hazard lights indicator
10. Instrument panel ground
CONNECTOR B
1. High beam indicator
2. Free
3. Free
4. Right turning indicator
5. Right turning indicator
6. Supply ()+DC)- after contact
7. Hand brake, braking system failure warning
8. Brake pads wear indicator
9. Free CO
NNECTORS ( until 01.06.2001)
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89A
ELECTRICAL DIAGRAMS
89A - 3
BLOW ER COOLING
GENERALITIES
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89A
ELECTRICAL DIAGRAMS
89A - 6
PA
RTICULARITIES REGARDING THE CONNECTORS
DISCONNECTING METHOD
Because this vehicle is equipped with electronics systems controlling and checking different
functions, it is necessary the execution of the electric connection by means of some connectors
provided with securing de vices after coupling performing. Due t o this reason, i n c ase t heir
disconnecting is necessary, proceed observing the following observations:
- connectors for: ignition coil (pos.1), canister purging valve (pos.2), AC pressure sensor (pos.3),
atmospheric pre ssure sensor(pos.4), siren(pos.4), step-by-step engine (pos.5), valve potentiometer
(p os.6), cooling blower (pos.7) are to be disconnected after easy pulling the locking clamp in the
di rection shown by the arrow.
- the connectors for: RPM sensor (pos.8), front hood contact (pos.9) are to be disconnected
after easy pulling the locking clamp (A) in the arrow direction, for unlocking.
pos. 8
A
pos. 9
A
pos. 1pos. 2pos. 3
pos. 5 pos. 6
pos. 7pos. 4
C
B
A
pos.10
GENERALITIES
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