CITROEN C5 Handbook page 236

CHECKING THE EFFICIENCY OF THE AIR CONDITIONING SYSTEM
TOOLS : 1 Charging station and 2 Thermometers.
Observing the preliminary conditions, as well as vehicle
equipment and checks (see page 231) :
After the air conditioning has been operating for three minutes,
record the following parameters :
Exterior temperature in °C
High pressure (Bars)
Low pressure (Bars)
CHECKING PRESSURES
Vehicle using R134.a fluid (Compressor with variable capacity)
40
Vehicles
SYNERGIE
- The temperature of the air coming out of the central vents
(See the table on page 288).
- The High Pressure.
- The Low Pressure.
Compare the values recorded with the table below, or the graphs.
35 30 25
16 ± 3
233
ALL TYPES
20 15
13 ± 3
2.1 ± 0.3 1.8 ± 0.3