Volkswagen Passat B7 Air Conditioning Pipe Hose 2.0 Petrol 3C0820741AJ

Volkswagen Passat B7 Air Conditioning Pipe Hose 2.0 Petrol is an original cabin cooling system component designed to work with the factory air conditioning compressor. This used part from the Air conditioning compressors and clutches category allows for a technically correct system repair, maintaining the factory refrigerant routing and system integrity. It is a practical solution for users looking to restore air conditioning efficiency without interfering with the vehicle's design.

Specifications and technical data

• SKU: 3C0820741AJ
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C0820741AJ
• Substitutable numbers: 3C0820741AJ, 3C0 820 741 AJ
• Fuel type: Petrol
• Category: A/C Compressors & Clutches

Purpose and compatibility

The component was designed for the Volkswagen Passat B7 with a 2.0 petrol engine, where it is responsible for the proper connection between the air conditioning compressor and other system components. By maintaining the original geometry of the hose, proper refrigerant flow is ensured without the risk of collision with other engine bay components.

The hose is dedicated to units powered by petrol fuel, which is significant due to structural differences compared to diesel versions. Using the correct component minimizes the risk of stress, leaks, and improper installation.

Technical characteristics and role in the air conditioning system

The air conditioning hose operates under high pressure and variable temperatures, which is why its construction is adapted to the requirements of the compressor and the entire system. It is responsible for:

• safe routing of the refrigerant between the compressor and other system components,
• maintaining system integrity under typical operating loads,
• stable mounting at factory body and engine points.

Thanks to the use of an original solution, compatibility with compressor operating parameters is maintained, which translates into even interior cooling and proper compressor lubrication.

Condition, installation, and service application

The offered air conditioning hose is used, making it a cost-effective choice for cabin cooling system repairs in the Passat B7. Such components are often replaced after mechanical damage, corrosion at the connections, or leaks detected during pressure testing.

During installation, it is recommended to:

• thoroughly clean the sockets and mating surfaces,
• use new seals in accordance with the manufacturer's recommendations,
• perform a leak test and properly fill the system with refrigerant.

This approach allows for fully utilizing the part's potential and reducing the risk of needing further system intervention.

Benefits of using an original air conditioning hose

Using an original hose in a Passat B7 with a petrol engine provides a number of practical service benefits:

• Factory fitment – compatibility with brackets, connection diameters, and installation routing is maintained.
• Stable system operating parameters – proper refrigerant flow promotes even interior cooling and correct compressor operation.
• Reduction of modifications – no need to modify the installation, fabricate custom hoses, or change mountings.

This solution is particularly recommended for repairs where maintaining the original air conditioning system configuration is a priority.

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 hoses, clutches, or the compressors themselves, check out the available parts in the Volkswagen air conditioning compressors and clutches category.

System safety and service knowledge

When working on air conditioning hoses and the compressor, it is worth paying attention to symptoms typical of compressor wear, such as noise, decreased cooling efficiency, or contamination in the system. To better plan your repair and assess when replacing just the hose is sufficient and when intervention on the compressor might also be necessary, read the article Air conditioning compressor – failure symptoms, causes, and safe replacement.