Mercedes W205 A/C Air Conditioner Expansion Valve A2058308400

The Mercedes W205 Air Conditioning Expansion Valve A2058308400 is an original cabin cooling system component designed for precise control of refrigerant flow in the air conditioning system. Thanks to its factory design, Mercedes ensures stable system operating parameters and predictable performance under various thermal load conditions. This is a solution for users who expect consistent operation with other air conditioning components in their W205.

Specifications and technical data

• SKU: A2058308400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2058308400
• Substitutable numbers: A2058308400, A 205 830 84 00
• Category: A/C Expansion Valves

The Role of the Expansion Valve in the Mercedes W205 Air Conditioning System

The expansion valve in the Mercedes W205 is responsible for controlled reduction of refrigerant pressure before the evaporator, which directly impacts the interior cooling efficiency. A correctly selected component from the Expansion Valves group stabilizes evaporator temperature, reduces the risk of icing, and supports uniform compressor operation. The original valve for the W205 is optimized for the air conditioning system characteristics of this model, making it easier to maintain thermal comfort in the cabin.

Why Choose an Original Mercedes Expansion Valve

For air conditioning systems, maintaining component compliance with the manufacturer's original specifications is crucial. The expansion valve dedicated to the Mercedes W205 is designed to work with the original evaporator, compressor, and accessories, which translates to:

• consistent refrigerant flow parameters across the entire operating range of the system,
• better control over pressure and temperature in the circuit,
• reduced risk of air conditioning malfunction after repair.

For users who value technically correct installation, it is also important that the element from this group is prepared for direct integration with the factory installation, without the need for hose modifications or additional adapters.

Characteristics of the Used Component

The presented expansion valve comes from the Expansion Valves category and is designated as a used element. This type of component, sourced from disassembly, allows for economical repair of the air conditioning system while maintaining the original Mercedes design. In practice, this means the possibility of restoring proper air conditioning operation without resorting to unreliable aftermarket replacements with unverified flow characteristics.

Choosing a used OEM part is particularly beneficial in situations where maintaining the factory system configuration and compatibility with vehicle software and control unit calibration is a priority.

Compatibility, Identification, and Part Group

Selecting the correct expansion valve for the Mercedes W205 should always be based on the OEM part number and interchangeable numbers assigned to a specific reference. This valve model belongs to the group of components intended by the manufacturer for operation in the W205 air conditioning system, which facilitates identification and minimizes the risk of installing an incorrect component. The product's technical specification provides information on the OEM part number, interchangeable numbers, and stock code, allowing you to verify compatibility with your vehicle.

If you are planning a comprehensive repair or upgrade of the air conditioning system in your Mercedes and need other components from the same group, such as additional valves, control elements, or regulating components, check the available parts in the Mercedes Expansion Valves category.

Practical Service Tips and Technical Knowledge

When working on the air conditioning system, it is worth paying attention to the general principles of operating control elements, such as expansion valves or exhaust gas recirculation valves in other engine components. For those interested in the broader context of selecting used components for controlling media flow in a car, an article describing the specifics of exhaust gas recirculation valve operation and the benefits of choosing parts from disassembly may be useful – you can find it here: EGR: What It Is and Why Consider Used EGR Valves.

Summary

The Mercedes W205 Air Conditioning Expansion Valve A2058308400 is a solution for users who want to restore proper air conditioning operation while maintaining the system's original operating logic. The original design from the Expansion Valves group supports stable cabin cooling, correct cooperation with other components, and predictable operational performance. By choosing this element, you opt for a technically consistent solution tailored to the specifics of the Mercedes W205.