Audi A6 C8 A4 4G Air Conditioning Evaporator Expansion Valve 4G2816023

The Air Conditioning Evaporator with Expansion Valve for Audi A6 C8 / A4 4G is an original cabin cooling system component, designed for precise integration with the factory Audi air conditioning system. By maintaining the specific OEM construction, it ensures stable operating parameters, correct refrigerant pressures, and predictable system behavior under various operating conditions. This solution is particularly beneficial for repairs where compliance with the manufacturer's original specifications and maintaining thermal comfort inside the vehicle are crucial.

Specifications and technical data

• SKU: RHD-4G2816023
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G2816023
• Substitutable numbers: 4G2816023, 4G2 816 023
• Category: Other Air Conditioning & Heating

Purpose and Function in the Air Conditioning System

The air conditioning evaporator, integrated with the expansion valve, is responsible for intensive heat exchange between the air supplied to the cabin and the refrigerant. In Audi A6 C8 and A4 4G models, this component works in conjunction with the factory compressor, condenser, and dryer, forming a cohesive and efficient system. Using an original Audi part allows for maintaining proper refrigerant flow parameters, which translates to uniform cooling, reduced window fogging, and stable air conditioning operation under varying loads.

Construction and Fitment for Audi

The evaporator with expansion valve discussed has been specifically designed for the HVAC system architecture in Audi A6 C8 and A4 4G. This means it is tailored in terms of:

• geometry and mounting method within the heater housing and air ducts,
• diameters and types of refrigerant connections,
• flow characteristics and pressure regulation on the low and high sides of the circuit.

This ensures a predictable installation process for service centers, and after proper filling of the air conditioning system, parameters close to factory specifications can be achieved. Using an original Audi component minimizes the risk of leaks, bleeding issues, or improper expansion valve operation.

Characteristics of a Used Component

The offered air conditioning evaporator with expansion valve is a used part, sourced from disassembly, allowing for an economical restoration of system functionality while retaining an OEM component. This type of solution is particularly advantageous for repairs on vehicles used intensively, where the cost-to-quality ratio is important. A used original part retains its factory construction and compatibility, while also enabling cost savings compared to purchasing a new part.

Benefits of Using an Original Evaporator with Expansion Valve

Choosing this component for an Audi A6 C8 or A4 4G provides a range of practical service and operational benefits:

• maintaining the factory cabin cooling characteristics and rapid temperature reduction upon air conditioning activation,
• proper cooperation with pressure sensors and the air conditioning system controller,
• reduced risk of incompatibility, typical for aftermarket parts with different geometry or flow characteristics,
• the possibility of an effective system repair after compressor failure, leaks, or refrigerant contamination.

For workshops and users, this means a more predictable service process and easier diagnosis of potential future faults. Consistency with the original air conditioning system design directly impacts driving comfort and the durability of other system components.

Integration with Other Audi Components and Additional Information

The evaporator with expansion valve works with other air conditioning system components, such as the compressor, condenser, high and low-pressure lines, and temperature and pressure sensors. In the case of a comprehensive system repair, it is advisable to check the condition of these elements to avoid re-leaking or refrigerant contamination. If you are interested in a broader context of technical solutions used in sporty versions of this brand, check out the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses construction differences in terms of drivetrain, brakes, and suspension.

When choosing a used air conditioning component, many drivers also consider the economic aspect. In the context of rising service costs, it is worth familiarizing yourself with the guide How to Wisely Use Used OEM Parts and Reduce Repair Costs, which describes practical principles for selecting disassembled components.

If you are planning a comprehensive repair or upgrade of the air conditioning and ventilation zone in your Audi and need other parts from the same group, such as refrigerant lines, condenser, or compressor, check the available parts in the category Other Audi.