Attention! Observe all necessary precautions related to the maintenance of A/C systems (see Section General information and security measures)!
Bolts of fastening of a forward decorative lattice
The location of the observation window of the receiver-drier in the engine compartment of models manufactured from 12.2000
The location of the viewing window of the receiver-drier, located in front of the radiator
2 — Socket of the sensor-switch of low pressure
The location of the viewing window of the receiver-drier in the engine compartment of the models manufactured before 12.2000.
1. If the A/C receiver-dryer is placed in front of the radiator, remove the front grille (see chapter Body).
2. Wipe the viewing glass (arrow) on the receiver-drier assembly.
3. Disconnect the connector (2) low-pressure sensor-switch and bridge the terminals of the latter.
4. Run the engine to idle.
5. Turn on the heater fan and activate the A/C system in the maximum cooling capacity mode.
6. Remove the jumper from the pressure switch connector and, looking into the viewing window of the receiver-dryer, make sure that there are no signs of refrigerant bubbles (when starting a freshly charged system for the first time, air bubbles should not be a concern, - wait about 10 minutes, - the bubbles should disappear, slight bubbles are also acceptable at high [> 35°C] ambient temperatures)
Note. When the electromagnetic clutch of the compressor is activated, the flow rate of the liquid should increase.
7. Carefully examine the external condition of all components of the refrigeration A/C, using a special detector, check them for signs of leak development.
8. Set the fan to high speed «1» and using a special meter, measure the temperature of the air leaving through the central deflectors of the instrument panel. After 5 minutes of system operation, the temperature of the air supplied to the passenger compartment must be within the range of +2°С ÷ +12°С, and the A/C compressor must switch to cyclic mode (on off), otherwise check the condition of the evaporator temperature switch.
9. Turn off the air conditioner and turn off the engine - more detailed checks of the A/C system should be carried out in a car service workshop.