An Expansion device is one of the major components in the Air Conditioning system. It regulates the flow of gas inside your car air conditioning system. The Expansion valve receives the cool liquid refrigerant under high pressure circulated by the receiver-drier. It allows the liquid to pass through an orifice tube by sensing the temperature of the Evaporator, or Cooling coil. According to how cool you want it in your car, the expansion valve releases the cool refrigerants. If you increase the cooling level of your BMW A/C system, the expansion valve expands to release more refrigerant. Likewise, if you decrease the level, it slows down the flow of refrigerant.
The expansion device has three pressure points to regulate the amount of refrigerant entering the system. They are the evaporator, bulb and the spring. If you find any problems with your car A/C expansion device, you must have it inspected and replaced immediately. Having trouble looking for the best A/C car replacement parts and accessories? You don’t need worry. We are here to provide you with what you need. At Discount AC Parts you can purchase OEM replacement and aftermarket parts at wholesale prices. All our car parts are tested for quality to meet or exceed the industry standards. We offer genuine car parts at unbeatable prices. If you find the same part for less, we will match that price!