The refrigerant specifications are listed on the label located in the vehicle's engine compartment.
Use the high-pressure line at a refilling station to collect, create a vacuum, and charge R134A refrigerant.
Be sure to plug the air conditioning system lines with caps to prevent moisture from entering the system.
Remove caps from replacement parts only at the last moment before installing them.
With the engine running, check for leaks with a leak detector five minutes after refilling; The heater and blower fan must operate at maximum speed.
Strictly follow all instructions for adding oil when working on air conditioning system components.
When replacing valves, adhere to the required tightening torque of 8 Nm.
Removing refrigerant from the air conditioning system
Before performing work related to depressurizing the air conditioning system, the refrigerant must be removed from the system.
To do this, unscrew the threaded cap of the valve.
Put on protective Glasses.
Use a thin, long-tipped screwdriver to press the tip of the valve core and bleed the refrigerant from the system.
Bleed the refrigerant from the system in a well-ventilated area or outdoors.
Release the refrigerant from the system in a thin stream.
Air Conditioner Charging
After repairs involving depressurization of the air conditioner, it is necessary to evacuate the system and refill it with refrigerant (R134a).
The charging volume varies for each car model.
To perform the charging, you must have:
- precision manometric blocks with special connecting tips;
- two-stage vacuum pump for complete removal of air and water vapor from the system;
- - scale for dosing the amount of refrigerant to be charged.
Air conditioning system maintenance
Every year of operation Recommended:
- – Clean and blow out the condenser and radiator of the engine cooling system;
- – Ensure that the condensate drain hole in the cold air injection unit is not clogged.
Checking the refrigeration circuit's refrigerant charge or draining the refrigerant is recommended every four years.
Bactericidal product for treating the air conditioning system
Treat the heating and ventilation system with a special product after each winter season or after an extended period of non-use to eliminate possible contamination.
Spray the entire product from an aerosol can equipped with an extension through the filter pipe of the cabin ventilation system.
Never spray the product through the air intake inlet due to the risk of damaging the electric air injection fan.
Wait 15 min.
Turn the fan on very low speed for 5 minutes.