ALL TYPES
CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
CHECKING PRESSURES
TOOLS - 1 Charging station.
CHECK
- 2 Thermometers.
- The temperature of the air coming from the central vents (see table)
Once the preliminary conditions, vehicle equipment and checks have
been fulfilled (see table) : After the air conditioning has been on for three
minutes, record the following parameters :
- The High Pressure.
- The Low Pressure.
Compare the values recorded with the table below, or the graphs.
Vehicle using R134.a fluid (Compressor with variable capacity)
Ambient temperature in °C
Vehicles
40
35
30
25
20
15
Engines
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
High pressure (Bars)
Low pressure (Bars)
20 ± 3
18 ± 3
16 ± 3
20 ± 2
13 ± 3
11 ± 3
9 ± 3
SAXO
All Types
3 ± 0.3
23 ± 2
22.5 ± 2
3.6 ± 0.2
17 ± 2
3.1 ± 0.2
18.5 ± 2
3.2 ± 0.2
18 ± 2
15.5 ± 2
3 ± 0.2
17 ± 2
14.5 ± 2
2.9 ± 0.2
15.5 ± 2
TU
EW
DW
3.8 ± 0.2
3.5 ± 0.2
21.5 ± 2
3.5 ± 0.2
20 ± 2
24.5 ± 2
XSARA
4± 0.2
21.5 ± 2
3.2 ± 0.2
25.5 ± 3
4 ± 0.3
25 ± 3
3.8 ± 0.2
22.5 ± 2
3.3 ± 0.2
20.5 ± 3
3.5 ± 0.3
22.5 ± 3
3.5 ± 0.3
3 ± 0.2
16.5 ± 2
13.5 ± 3
15.6 ± 2
3 ± 0.2
18 ± 3
2.8 ± 0.2
20 ± 3
2.6 ± 0.2
11 ± 3
15 ± 3
TU
EW
3 ± 0.3
XSARA
PICASSO
20 ± 3
17 ± 3
DW
4 ± 0.3
3 ± 0.3
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