2004 Citroen XSARA PICASSO check engine

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AIRCON
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM C3 C3 PLURIEL KFV
CHECKING TEMPERATURES (Continued)
Vehicle using R134.a fluid
(Compressor with variable capacity)
Ambient temperature in °C
Temperature
at the central
air vents
in °CEngines
V ehicle
C3
C3 PlurielKFV
22 ± 2 17,6 ± 2 14,4 ± 2 11,5 ± 2 7,6 ± 2 7,2 ± 2
NFU18,5 ± 2 15 ± 2 12,5 ± 2 10 ± 2 8,5 ± 2 6,5 ± 2
8HX 8HW22 ± 2 17,6 ± 2 14,4 ± 2 11,5 ± 2 7,6 ± 2 7,2 ± 2
TU18 ±217 ±214,5 ±211 ± 2 8,5 ± 2
8 ±2
EW19 ± 2 18 ± 2 15 ± 2 12 ± 2 10 ± 2
DW15 ±215,5 ±211 ± 2 9 ± 2 7 ± 2 5 ± 2
All types22 ±3 16 ± 3 12,5 ± 3 10 ± 3 8 ± 3 6,5 ± 3
XSARA
XSARA
PICASSO40 35 30 25 20 15

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26 ± 2 23,2 ± 2 21 ± 2 19,2 ± 2 15,3 ± 2 15 ± 2
4,3 ±2 3,4 ± 2 3,1 ± 2 2,8 ± 2 2,7 ± 2
25,2 ±223,6 ± 2 21,4 ± 2 20 ± 2 17,6 ± 2 14,5 ± 2
3,5 ± 2 3 ± 2 2,8 ± 2 2,5 ± 2 2,4 ± 2
26,2 ± 2 23,2 ± 2 21 ± 2 19,2 ± 2 15,3 ± 2 15 ± 2
4,3 ± 2 3,4 ± 2 3,1 ± 2 2,8 ± 2 2,7 ± 2
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Checking pressures
Tools. 1
charging station. 2thermometers.
Once the preliminary conditions, vehicle equipment and checks havebeen fulfilled
(see table). After the air conditioning has been on for
three minutes, record the following parameters: The temperature of the air coming from the central vents
(see table).
The High Pressure. The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Ambient temperature in °C40 35 30 25 20 15
VehiclesEngines
C3
C3
C3 PlurielKFV
NFUHigh pressure (Bars)
Low pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)8HX 8HWVehicle using R134.a fluid
(Compressor with variable capacity)
High pressure (Bars)
AIRCONAIRCON
C3 C3 PLURIEL XSARA XSARA PICASSO KFV

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AIRCON
23 ± 2 22,5 ± 2 20 ± 2 17 ± 2 15,5 ± 2 14,5 ± 2
3,8 ± 0,2 3,6 ± 0,2 3,5 ± 0,2 3,1 ± 0,2 3 ± 0,2 2,9 ± 0,2
24,5 ±221,5 ±2 18,5 ± 2 17 ± 2 15,5 ± 2
4 ±0,2 3,8 ± 0,2 3,5 ± 0,2 3,2 ± 0,2 3 ± 0,2
21,5 ± 2 22,5 ± 2 20 ± 2 18 ± 2 16,5 ± 2 15,6 ± 2
3,2 ±0,23,3 ±0,23 ±0,22,8 ± 0,2 2,6 ± 0,2
25,5 ±320,5 ±318 ± 3 20 ± 3 13,5 ± 3 11 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
25 ± 3 22,5 ± 3 20 ± 3 17 ± 3 15 ± 3
4 ±0,33,5 ± 0,3 3 ± 0,3
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
Checking pressures
Tools. 1
charging station. 2thermometers.
Once the preliminary conditions, vehicle equipment and checks havebeen fulfilled
(see table). After the air conditioning has been on for
three minutes, record the following parameters: The temperature of the air coming from the central vents
(see table).
The High Pressure. The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Ambient temperature in °C40 35 30 25 20 15
VehiclesEngines
XSARA
XSARA
PICASSOTU
EW
High pressure (Bars)
Low pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)DWVehicle using R134.a fluid
(Compressor with variable capacity)
High pressure (Bars)
XSARA XSARA PICASSO
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
TU
EW
DW

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AIRCONAIRCON
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP1A5D
Key.
T/P
= Average temperature (°C)at the air vents/
high pressure (Bars).
P= Low pressure (Bars).
Te= Exterior temperature (C°).
HP= Pressure at compressor outlet (Bars).
BP= Pressure at compressor inlet (Bars).
TA = Average temperature (°C)of air blown from the
central vents.
C3 C3 PLURIEL BVA KFV

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AIRCON
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP18GD
Key.
T/P
= Average temperature(°C ) at the air vents/
high pressure(Bars).
P = Low pressure(Bars).
TE = Exterior temperature(C°).
HP = Pressure at compressor outlet(Bars).
BP = Pressure at compressor inlet(Bars).
TA = Average temperature(°C) of air blown from
the central vents.
C3 C3 PLURIEL NFV

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ELECTRICAL
SYSTEM
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP1A8D
Key.
T/P
= Average temperature(°C ) at the air vents/
high pressure(Bars).
P
= Low pressure(Bars).
TE = Exterior temperature(C°).
HP = Pressure at compressor outlet (Bars).
BP = Pressure at compressor inlet(Bars).
TA = Average temperature(°C) of air blown from
the central vents.
C3 C3 PLURIEL BV MECANIQUE 8HX 8HW

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AIRCON
XSARA PICASSO NFV 6FZ AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
C5HP150D
Key.
T/P
= Scale of:
Temperature (°C ), average of air from the central vents.
Pressure High (Bars).
Pressure Low (Bars).
Te= Exterior temperature (°C).
HP= Pressure at compressor outlet (Bars).
Ta = Temperature (°C)of air blown from the vents.
BP= Pressure at compressor inlet (Bars).

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AIRCON
XSARA PICASSO RHY RHZ
AIR CONDITIONING SYSTEM R 134.a
Checks on the air conditioning circuit
Key.
T/P
= Scale of:
Temperature (°C ), average of air from the central vents.
Pressure High (Bars).
Pressure Low (Bars).
Te= Exterior temperature (°C).
HP = Pressure at compressor outlet (Bars).
Ta= Temperature (°C)of air blown from the vents.
BP= Pressure at compressor inlet (Bars).
C5HP14ZD