Audi A3 8P VW Golf Mk6 Expansion Valve A/C Air Conditioning Valve Unit 1K2820103

Audi A3 8P VW Golf Mk6 Expansion Valve A/C Air Conditioning Valve Unit is a cabin cooling system component responsible for the precise expansion of refrigerant in the front part of the vehicle. Thanks to a properly selected valve, the air conditioning system operates stably, ensuring thermal comfort and predictable compressor performance parameters. This component from the Expansion valves category is intended for service applications in VAG group vehicles, including Audi and VW.

Specifications and technical data

• SKU: 1K2820103-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K2820103
• Substitutable numbers: 1K2820103, 1K2 820 103, F666902Z-H
• Location on the vehicle: Front
• Part type: A/C Expansion Valve
• Category: A/C Expansion Valves

Function and role of the expansion valve in the air conditioning system

The expansion valve is responsible for the controlled reduction of refrigerant pressure before the evaporator, which enables efficient heat absorption from the vehicle interior. A properly functioning component:

• stabilizes the pressure and temperature of the refrigerant in the circuit,
• reduces the risk of compressor overload,
• contributes to uniform cabin cooling under various thermal loads,
• ensures predictable operation of the entire air conditioning system in both city and highway conditions.

Its location in the front part of the vehicle facilitates efficient service and leak testing of the installation during air conditioning inspections.

Purpose and vehicle compatibility

The presented expansion valve has been designed as an air conditioning system component for vehicles from the Audi family and related VAG group models, such as the sixth-generation VW Golf. The design intended for front-of-vehicle installation allows for integration with factory lines and the evaporator, which simplifies service work and reduces the need for installation modifications.

In practice, this means that with proper selection based on the OEM number or interchangeable numbers, the valve can be integrated into the existing system without interfering with the geometry of the lines or mounts. This is especially important in vehicles where maintaining the original air conditioning installation architecture is crucial for the durability and tightness of the entire system.

Performance characteristics and advantages of use

As an item from the Expansion valves category, this component operates under demanding pressure and temperature conditions, which is why its correct operation has a direct impact on driving comfort. Using a properly selected valve allows you to:

• maintain stable cooling efficiency at varying engine speeds,
• reduce fluctuations in air vent temperature,
• limit unnecessary compressor engagement cycles, which promotes its longevity,
• preserve the factory operating characteristics of the air conditioning system.

The product is offered in a used condition, which is a cost-effective service solution for users looking for technically sound components on a reasonable budget, while maintaining compliance with the manufacturer's original specifications.

Professional selection by OEM number and parameters

When selecting an expansion valve for an Audi A3 8P or VW Golf Mk6, it is crucial to verify the OEM part number and any interchangeable numbers, as well as the location on the vehicle. This approach minimizes the risk of mismatching threads, connectors, and mounting points, which is particularly important for air conditioning system components operating under high pressure.

If you want to streamline the selection process and learn how to effectively use the OEM number or vehicle data, the following practical guide will be helpful: how to choose the right car part by VIN and OEM number. It will make it easier for you to verify the valve's compatibility with your car's specific configuration.

Expansion and service of the air conditioning system in Audi

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your Audi and need other elements from the same group, such as additional expansion valves, refrigerant flow control elements, or compatible cabin cooling system components, check out the available parts in the Audi expansion valves category.

When planning broader service work in the area of exhaust emission systems, it is also worth familiarizing yourself with the topic of exhaust gas recirculation and the use of used parts. This issue is discussed in more detail in the article EGR: what it is and why it is worth considering used EGR valves, which helps to look at vehicle service in a holistic way, taking into account efficiency and operating economy.