Volkswagen VW Golf Mk5 1K Evaporator Air Con Matrix Air Conditioning 1K0820679

The Volkswagen VW Golf 1K Evaporator Air Conditioning Expansion Valve is an original cabin cooling system component designed for use in Volkswagen vehicles. Thanks to its factory design, it ensures proper cooperation with the compressor, condenser, and other air conditioning components, which translates to stable operating parameters and thermal comfort inside the car.

Specifications and technical data

• SKU: 1K0820679
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 1K0820679
• Substitutable numbers: 1K0820679, 1K0 820 679
• Category: A/C Evaporators

Technical Characteristics and Function in the Air Conditioning System

The presented evaporator integrated with the expansion valve is responsible for a crucial stage of refrigerant transformation in the air conditioning system. This is where the refrigerant expands and its temperature drops significantly, followed by heat exchange with the air directed into the cabin. A correctly selected component from this group allows for maintaining stable cooling performance, reducing fluctuations in the air supply temperature, and decreasing the load on the compressor.

The solution used by the vehicle manufacturer ensures matched airflow channel geometry, which promotes uniform distribution of the refrigerant and air. This allows the air conditioning system to operate predictably, and the driver receives consistent cooling parameters even during prolonged use.

Selection by OEM Number and Compatibility

This component belongs to the Evaporators group and is part of the original Volkswagen component line. Selection is based on the OEM number and interchangeable numbers, which allows for precise verification of compatibility with a specific body version, engine, and air conditioning system. In practice, this means direct installation in place of a worn or leaking component, without the need for installation modifications or mounting adjustments.

For users and workshops, this means a simplified service process: simply compare the markings with the vehicle documentation or the removed part to ensure compatibility. This approach minimizes the risk of selecting the wrong component and reduces vehicle downtime.

Condition, Verification, and Preparation for Installation

The offered air conditioning evaporator with expansion valve is a used market component, which allows for reduced repair costs while maintaining original construction. Such a part is particularly attractive to users who want to restore the air conditioning system's functionality while controlling their service budget. Before installation, the standard workshop procedure is recommended: checking the system for leaks, replacing the desiccant, and correctly filling the system with refrigerant according to the vehicle manufacturer's guidelines.

A properly prepared and installed evaporator with an expansion valve helps reduce the risk of recurring faults, such as a drop in cooling performance, uneven icing, or excessive compressor load. This is a practical solution for workshops specializing in air conditioning service and for informed users who expect predictable repair results.

Application in Service Practice

Replacement of the evaporator with an expansion valve is recommended in situations where a leak in the heat exchanger has been detected, contamination prevents effective heat exchange, or there are problems with low-pressure side pressure regulation in the system. Using an original Volkswagen solution allows for maintaining factory operating parameters, which is particularly important in vehicles used intensively or in varied climatic conditions.

For workshops specializing in the Volkswagen brand, such a component represents a predictable part of the service puzzle: known construction, repeatable mounting points, and compliance with factory service procedures. This facilitates work time planning and reduces the risk of unforeseen complications during repairs.

Expanding Repair Scope and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the air conditioning system area in your Volkswagen and need other components from the same group, such as heat exchangers, control modules, or additional cooling components, check the available parts in the Volkswagen Evaporators category.

When planning larger service work, it is also worth expanding your knowledge on the cost-effectiveness of using used market components. An expert guide describing facts and myths related to used powertrain components may be helpful – you can find it in the article Why Buy Used Gearboxes and Engines – Facts Instead of Myths, which discusses, among other things, the importance of OEM numbers and part selection procedures.