Table of contents: General information 🠇 Precautionary measures 🠇
General information
Certain models are equipped with an air conditioning system. It reduces the temperature of incoming air and removes moisture from the air, which helps quickly eliminate window fogging and improve comfort.
The cooling side of the system works similarly to a home refrigerator. Gaseous refrigerant is drawn into the compressor (having a belt drive) and then passes into the condenser mounted on the front of the radiator (where it loses heat and becomes liquid). The liquid refrigerant passes through the expansion valve into the evaporator, where it changes from a high-pressure liquid to a low-pressure gas. This change is accompanied by a decrease in temperature, which causes the evaporator to cool. The refrigerant returns to the compressor and the cycle begins again.
Air drawn through the evaporator passes into the air distribution unit where it mixes with the hot air passing through the heater core to achieve the desired temperature inside the vehicle.
The heating side of the system works as in models without air conditioning (see paragraph 9).
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The air conditioning system is controlled by an electronic control unit that operates the electric cooling fan(s), compressor and a warning light mounted on the dash. For any problems with the system, please contact your Peugeot/Citroen dealer.
Tip: Many auto parts stores sell disposable aerosol air conditioning rechargers. Typically, they contain refrigerant, compressor oil, leak sealant, and a system conditioner. Some also contain dye to help locate the leak.
Precautionary measures
If you have an air conditioner, when working with any part of the system, its components and other units that require "opening" the refrigerant circuit, you must take special precautions. If for any reason you need to 'open' the system, have it done by a Peugeot/Citroen dealer.
Caution: These products should be used according to the manufacturer's instructions. They do not eliminate the need for regular maintenance.
Caution! The air conditioning system circuit contains liquid refrigerant. For these reasons, it is very dangerous to disconnect any part of the system without the appropriate knowledge and equipment.
Refrigerant is a potentially hazardous substance and should only be handled by trained personnel. If refrigerant comes into contact with skin, frostbite may occur.
It is not poisonous in itself, but when exposed to open flame (including a cigarette) forms a poisonous gas. Uncontrolled release of refrigerant from the system is dangerous and a potential source of environmental harm.