coolant RENAULT KANGOO 1998 KC / 1.G Heating And Ventilation Workshop Manual

AIR CONDITIONING
General
62
A Passenger compartment
B Engine compartment
C Exterior air
D To air mixing unit
E Scuttle panel grille
F Exterior or recirculated air
1 Compressor with variable capacity
2 Condenser
3 Dehydration canister
4 Pressure sensor
5 High pressure valve
6 Pressure relief valve
7 Evaporator
8 Low pressure valve
9 Heating/ventilation fan
10 Cooling fan
11 Engine radiator
12 High pressure fluid
13 Low pressure vapour
14 High pressure vapour
Consumables:
- Compressor oil
SANDEN SP 10: 135 cm3 ± 15
- Coolant
R134a: 650 g ± 35
- Compressor
SANDEN SD 7V 16
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AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 2 illuminated
COOLANT SENSOR
XR 25 assistance: *02 : 2 def = low level
1 def = high level
2
None.NOTES
Fiche n° 61
Low level
Check the continuity and insulation from earth of the electrical wiring between tracks A, B and C of the
sensor and tracks 9, 10 and 11 of the air conditioning control unit 30-way connector (sensor supplied with
5 V).
Repair the faulty electrical wiring.
Connect the XR25 and enter # 16. Measure the coolant pressure. The low pressure should be less than or
equal to 2 bars.
Is it correct?
Change the coolant pressure sensor.YES
NOTop up the coolant.
Check that the coolant sensor connector is correctly engaged.
Engage the connector correctly if necessary.
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AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
2
High level
Change the coolant pressure sensor.YES
NOTop up the coolant.
CONT
Check that the coolant sensor connector is correctly engaged.
Engage the connector correctly if necessary.
Check the condition of the electrical wiring between tracks A, B and C of the sensor and tracks 9, 10 and
11 of the air conditioning control unit 30-way connector (sensor supplied with 5 V).
Repair the faulty electrical wiring.
Connect the XR25 and enter # 16. Measure the coolant pressure. The high pressure should be less than or
equal to 28 bars.
Is it correct?
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AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 4 illuminated
COMPRESSOR CONTROL
XR25 assistance :C.O.open circuit
C.C.1short circuit to 12 volts
4
Before any removal, enter G0** on the XR25 and reinitialise the system.NOTES
Fiche n° 61
YES
YES Change the clutch.
Refer to Left-hand bargraph 4 illuminated, CONT 1.NO
NO Top up the coolant circuit.
Repair the circuit if necessary.
If left-hand bargraph 4 remains permanently illuminated, change
the clutch.
If left-hand bargraph 4 still remains permanently illuminated,
change the compressor.
Using the XR25, check the pressure of the circuit (# 16).
At an ambient temperature of approximately 20 °C, a pressure of between 2 and
28 bars should be measured.
Is the pressure between these values?
Enter G21* on the XR25 to control the compressor.
Does the compressor cut in?
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AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Left-hand bargraph 6 illuminated
FAN ASSEMBLY (2) CONTROL
XR25 assistance :C.O.open circuit
C.C.1short circuit to 12 volts
6
NOTES
Fiche n° 61
Check that the air conditioning has been selected.
Check that right-hand bargraph 6 is extinguished, if it is not, deal with right-hand
bargraph 6 first.
Enter G0** on the XR25.
If left-hand bargraph 6 remains illuminated, you can begin the fault finding
procedure.
Check the condition of the earth of fan assembly (2) (the relay is controlled by 0 volt).
Repair the fan assembly earth if necessary.
Connect the XR25 and enter # 16. Check that the coolant pressure is approximately 20 bars.
If it is not, top up the coolant (operation of the cooling fan assembly is dependent on the coolant
pressure).
NOChange the relay of fan assembly (2).
YESCheck the continuity and insulation from 12 volts of the electrical wiring
between track F2 and track 23 of the air conditioning control unit 30-way
connector.
Repair the faulty electrical wiring.
Check the condition of the wiring between the relay of fan assembly (2) and track 10 of the injection
computer.
Repair it if necessary.
Check the operating status of the relay by entering G23* on the XR25.
The fan assembly should be heard to knock.
Is the fan assembly heard to knock?
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AIR CONDITIONING
Fault finding - Interpretation of XR25 bargraphs62
KANGOO
ALL TYPES
Enter G0** on the XR25.
Check that the system operates correctly.AFTER
REPAIR
Right-hand bargraph 6 illuminated
FAN ASSEMBLY (1) CONTROL
XR25 assistance:C.O.open circuit
C.C.1short circuit to 12 volts
6
NOTES
Fiche n° 61
Check the condition of the earth of fan assembly (1) (the relay is controlled by 0 volt).
Repair the fan assembly earth if necessary.
Check that the air conditioning has been selected.
Enter G0** on the XR25.
If right-hand bargraph 6 remains illuminated, you can begin the fault finding
procedure.
Connect the XR25 and enter #16. Check that the coolant pressure is approximately 10 bars.
If it is not, top up the coolant (operation of the cooling fan assembly is dependent on the coolant
pressure).
Check that the air conditioning is operating.
Fan assembly (1) is controlled from the time the air conditioning is switched on.
Check the operating status of the relay by entering G22* on the XR25.
The fan assembly should be heard to knock.
Is the fan assembly heard to knock?
YES
Change the relay of fan assembly (1).NO
Check the continuity and insulation from 12 volts of the electrical wiring
between track M2 and track 22 of the air conditioning control unit 30-way
connector.
Repair the faulty electrical wiring.
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
Check that the components which were removed are connected correctly.
Check that the system operates correctly.AFTER
REPAIR
yes
CHART 3
CONT
A
noChange the thermostat.
yes
yes
noEnd of fault finding.
noEnd of fault finding.
With the engine cold, remove the engine
coolant thermostat and check that it is not
jammed in the open position.
Is it correct?
Check that there is no unwanted intake of
cold air into the passenger compartment
(seals, grommets, cables ...).
Repair if necessary
Does the fault persist?
Check the air inlets (particle filter)
and outlets.
Partially blocked air inlets or outlets
reduce the flow of heated air
into the
passenger compartment.
Repair if necessary.
Does the fault persist?
The heater radiator must be blocked. Remove
the radiator and clean or change it
(only valid for vehicles which have been
driven without the particle filter).
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
no
CHART 4NO HEAT
NOTES
Is it an air flow problem?yesSee CHART 2.
yes
yes
noSee CHART 1.
noEnd of fault finding.
noEnd of fault finding.
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Check the level of coolant in the cooling
circuit.
NOTE: if the coolant level is too low, the cir-
cuit may become unprimed when driving at
low load and at idle.
Repair if necessary.
Does the fault persist?
Visually check that moving the control
moves the mixing flap.
Does it move?
yes
Check the coolant circuit.
NOTE: fitting an oil, water or air cooler which
has not been approved by the research centre
and which is incorrectly connected may re-
duce or even stop the flow of coolant in the
heater radiator.
Repair the coolant circuit if necessary.
Does the fault persist?
Remove the heater radiator.
Clean or change it if necessary.
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
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AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
Check that the system operates correctly.AFTER
REPAIR
yes
CHART 5TOO HOT
NOTES
noSee CHART 1.
noReadjust the cable
(to the right of the air distribution unit).
yes
yesSee CHART 11.
no
Before carrying out any work, check that the customer uses the air conditioning
correctly.
Non regulated air conditioning.
Visually check that moving the control
moves the mixing flap.
Does it move?
Check that the flap travel
is complete.
Is the travel complete?
Check the operation
of the recirculation flap.
Is it jammed in the recirculation position?
Check the operation
of the engine coolant thermostat.
Change the thermostat if necessary.
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yes
Check the connections between:
air 9 A fluid
conditioning pressure
computer 10 B sensor
Is the wiring in good condition?
c11010.0
AIR CONDITIONING
Fault finding charts
62
KANGOO
ALL TYPES
AFTER
REPAIR
no
CHART 12AAIR CONDITIONING PROBLEMS
No cold air
NOTES
yesRefer to left-hand bargraph 13.
noTop up the coolant circuit.
yes
noRepair the faulty
electrical wiring.
Change the pressure sensor.
Non regulated air conditioning.
The passenger compartment fan operates.
Check that left-hand bargraph 13 is
extinguished. This relates to the inhibiting of
heating/ventilation/air conditioning by the
injection or the automatic gearbox.
Is this bargraph extinguished?
Using the XR25, measure the pressures of the
coolant circuit by entering #16 or use
pressure gauges.
The pressures should be:
- high pressure < 28 bars,
- low pressure > 2 bars.
Is this correct?
Check that the components which were removed are connected correctly.
Check that the system operates correctly.
62-35