2004 DACIA SUPERNOVA Repair Manual

AIR CONDITIONING
62
62 - 10
DRY
ER FILTER TANK
The dryer filter tank has a triple function in the air conditioning unit:
- filtering the refrigerant fluid from the unit;
- absorbing the moisture from the unit;
- it is a buffer storage tank of refrigerant fluid.
DRY ER FILTER TANK
REMOUNTING
Perform the dismounting operations in the reverse order.
Fill the refrigerant circuit, check the leakage and the good operation of the unit.
AT TENT ION
Do not mount dryer fi lter tanks that do not have protection covers. DRY
ER FILTER TANK REPLACEMENT
DISMOUNTING
Disconnect the battery.
Drain the refrigerant circuit.
Dismount the piping and protect the threads.
Disconnect the connector of the air conditioning pressure controller.
Dismount the receiver tank filter from the collar support.
Replace the tank filter.
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AIR CONDITIONING
62
62 - 11
UNIT PIPING
The air conditioning unit piping is ensuring the refrigerant fluid circulation between the unit
components. When piping is replaced, check the existence of the protective covers, the lubrication
of the connections and gaskets with compressor oil as well as filling up with compressor oil.
The unit filling and draining valves are placed on the compressor piping and they have different
diameters, so that they can not be reversed.
NOTE
For tightening or loosening the unit piping connections where the refrigerant fluid is
passing through, two special wrenches are to be used, in order to balance the moments’ twist.
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AIR CONDITIONING
62
62 - 12
CL
IMA TE CONTROL UNIT REPLACEMENT
DISMOUNTING
Disconnect the battery.
Release t he lateral and central console.
Disconnect the wires from the dashboard wiring.
Disconnect the distribution flow flap control cables and the mixing flow flap from the control
lever and the recycling flow flap cable from the climate control panel.
Disconnect the air flow pipes.
Dismount the screws from the front side of the climate box.
Dismount the nuts from the welded screws in the backside of the climate box.
Release the climate control unit.
Replace the climate control unit.
REMOUNTING
Perform in the reverse order the dismounting operations.
CL
IMA TE CONTROL UNIT
AIR INLET ASSEMBLY REPLACEMENT
DISMOUNTING
Dismount the sealing gaskets on the climate box outliner.
Dismount the climate box locking plate.
Dismount the nuts from the right side of the climate box.
Release the air inlet assembly .
Replace the assembly .
REMOUNTING
Perform in the reverse order the dismounting operations.
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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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AIR CONDITIONING
62
62 - 14
Correct AC system
filling.
Compressor does not work.
Ye s
Ye s No Ye s
Check the clutch coil. Damaged,
short-circuit?
Replace the
compressor.Restore the electric circuit
between E and clutch.
Is + 12 V at pol e E 5 of E relay?
Is + 12 V at pole E3 of E relay?
Is + 12 V at pole E3 of E relay?
Check fuse S6 from engine
compartment. Restore the
wiring between S6 and relay E.
No
Restore the wiring between pole
E1 of E relay a nd pole D5 of D
relay.
No
The wiring between injection
computer
and the pole E2 of E re lay is broken ?
Ye s
Repair the wiring.
Ye s
No
Check the pressure
controller electric circuit.
Injection computer does not receive
AC actuation?Yes
Check the switch electric circuit.
Pressure controller is working?
No
Replace the switch.
AC control switch is
working ?No
Ye s
Ye s
Check the pressure controller
electric circuit.
No
Replace the pressure controller.
No
DIAGNOSIS
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SEALI NG OPENING ELEMENTS
65
65 - 1
D
OOR FRAMES GASKETS
DISMOUNTING
Dismount the front and rear frames gaskets following the doors outliners, by drawing towards
outside of one of their ends.
REMOUNTING
Perform in the reverse order the dismounting operations.
The mounting of the sealing gaskets on frames is performed by tapping with a rubber hammer.
CARRIAGE BODY SEALING
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SEALING WINDOWS AND SCREENS
66
66 - 1
1. Windscreen gasket
2. H atchback gasket
3. Fix window gasket
DISMOUNTING
Di smount the windscreen gl ass (1), hatchback (2 ) , or fix (3), together with the ga sket by
pushing from the inside of the vehicle. The glass gasket shall be cleaned is reused, or replaced with a new one.
REMOUNTING
Position the gasket (2) around the glass (1) and place the a ssembly on a protection plate.
P lace t he gasket (2 ) all around the gl ass ( 1) where a c otton cord of 3 – 4 mm di ameter has
been previously introduced, leaving at the ends (3) about 20 mm of cord, and between the ends,
the distance shall be not more than 10 mm.
GLASSES SEALING
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SEALING WINDOWS AND SCREENS
66
66 - 2
INSI
DE WIPERS
DISMOUNTING
Dismo unt :
- opening handle
- window regulator crank
- door opening mechanism
- door blocking button
- panel attachment screws
Detach the panel.
Remove the inside wiper.
REMOUNTING
Perform in the reverse order the dismounting operations.
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