Evaporator AC Mercedes W205 W222 Air Conditioning Heat Exchanger A2058300302

Evaporator AC Mercedes W205 W222 Air Conditioning Heat Exchanger is a cabin cooling system component responsible for the precise expansion of refrigerant within the air conditioning installation. The offered valve, originating from the Evaporators group, is designed for use in Mercedes vehicles and serves as a functional service solution for users of hybrid models, such as the C350e. By maintaining the factory design, it ensures stable operation of the air conditioning system under demanding operating conditions.

Specifications and technical data

• SKU: A2228300402-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2228300402
• Substitutable numbers: A2058300302, A 205 830 03 02, A2228300402, A 222 830 04 02
• Category: A/C Evaporators

The role of the expansion valve in the air conditioning system

The expansion valve in the Mercedes W205 C350e is responsible for the controlled reduction of refrigerant pressure before it enters the evaporator. A properly functioning component:

• stabilizes the air supply temperature in the cabin,
• limits pressure fluctuations in the air conditioning installation,
• supports even compressor load,
• indirectly influences the thermal comfort of the driver and passengers. By maintaining the original geometry of the flow channels, the valve works with the evaporator in accordance with the manufacturer's specifications, which translates into predictable and repeatable operation of the entire system.

Benefits of using an original Mercedes component

Choosing an expansion valve sourced from a Mercedes vehicle allows for maintaining the structural integrity of the air conditioning system. The original component:

• is matched to the operating characteristics of the compressor and evaporator in the W205 C350e model,
• reduces the risk of mismatching threads, connections, and mounting points,
• facilitates installation in place of the factory component without the need for system modifications. For users of hybrid vehicles, stability of air conditioning operating parameters is particularly important, as this system works with advanced control electronics. Using an original expansion valve promotes the maintenance of correct pressure and temperature sensor readings as well as the proper operation of the air conditioning controller.

Product characteristics and service application

The offered air conditioning expansion valve is a component dismantled from a vehicle, which allows it to be used as a service part in Mercedes air conditioning system repairs. This type of solution is often chosen in situations where:

• a quick replacement of a damaged valve is necessary without waiting for a new component,
• maintaining the original system specification is important,
• the repair needs to be economical while maintaining the factory design. A properly selected expansion valve reduces the risk of excessive pressure on the high-pressure side and excessively low evaporator temperature, which can lead to icing. Therefore, proper matching of the component to a specific Mercedes model is crucial for the durability of the entire system.

Support in selection and related system components

When planning service work on the air conditioning, it is worth paying attention not only to the expansion valve itself but also to the condition of the evaporator, hoses, and the receiver-drier. A consistent approach to system maintenance allows for reducing the risk of repeated interventions and ensuring stable air conditioning operation in the long term. If you are planning a comprehensive repair or upgrade of the air conditioning zone in your Mercedes and need other components from the same group, such as evaporators, connection elements, or additional modules related to the refrigerant circuit, check the available parts in the Mercedes Evaporators category.

Additional technical information and service knowledge

When working with vehicle thermal systems – both air conditioning and engine cooling – it is important to use components of verified quality. In the case of elements responsible for the flow of refrigerant or coolant, improperly selected replacements can lead to unstable system operation, overheating, or excessive component load. If you want to expand your knowledge on selecting used components in vehicle thermal systems and understand why original components often represent a safer solution than the cheapest replacements, read the article: Cooling system failure: why is an original used radiator a safer choice than a cheap replacement?