Expansion Valve

Buy an expansion valve for your car: powerful cooling performance for your air conditioning system

If the air conditioning in your car is hardly cooling at all, only produces lukewarm air or the temperature in the interior is uneven, it is worth taking a look at the expansion valve. At ecanis, you can select a suitable expansion valve for your car and thus noticeably stabilise the cooling performance of your air conditioning system. Here you can find out what task the component performs in the air conditioning circuit, when it is worth checking and in which cases it makes sense to replace it to ensure that your air conditioning system works reliably.

The expansion valve controls the flow of refrigerant in the refrigerant circuit and ensures that pressure and temperature match. It regulates the amount of refrigerant that flows into the evaporator, allowing heat to be absorbed from the indoor air. Thanks to this mode of operation, the expansion valve protects other air conditioning components from overloading and keeps the cooling capacity as constant as possible. In everyday life, it works inconspicuously in the background and is usually only noticed when the air conditioning system noticeably reduces.

A defective or dirty expansion valve is often characterised by weak or inconsistent cooling, frequently misted-up windows and an unpleasant interior climate. If your air conditioning system only blows lukewarm air or has to be constantly readjusted, the cause may be a problem in the area of the expansion valve. If this condition is ignored, other parts of the air conditioning system may be under greater strain. Timely diagnosis helps to improve driving comfort and reduce the load on the entire system.

When it is worth checking and repairing

If your air conditioning system starts to show signs of problems, such as occasional drops in performance or slow cooling, it may be worth checking the expansion valve. Many workshops first check whether dirt can be removed, whether the system is tight and whether seals or accessories should be replaced. Such measures often allow minor faults to be localised before a complete replacement becomes necessary. This ensures that the expansion valve in the air conditioning circuit can be used reliably for longer.

If the expansion valve is badly worn, permanently dirty or if the poor cooling performance keeps returning despite maintenance, a complete replacement is often recommended. A new expansion valve replaces all wear-prone components and can improve the stability of the entire air conditioning system. In older vehicles in particular, the replacement is often combined with a major air conditioning system service in order to increase the reliability and operational safety of the system in the long term.

In the ecanis shop, you can select suitable expansion valves for your car using your vehicle data, HSN and TSN or via a targeted spare parts search. You will only see parts that match your vehicle type and the air conditioning system installed. You also have the option of combining the expansion valve directly with other air conditioning components and accessories to prepare your vehicle for the next summer in one step.

• Wide selection of expansion valves for many popular vehicle models
• Combination of air conditioning components and other car accessories in one order
• Clear online search for the right part for your vehicle
• Supporting information on the function and use of expansion valves
• Possibility to compare different products and designs at your leisure

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