VW Volkswagen Tiguan Mk2 AX1 A/C Air Conditioning Pipe Hose Line 5QC816738C

The VW Volkswagen Tiguan Mk2 AX1 A/C Air Conditioning Pipe Hose Line is an original Volkswagen A/C system component, designed for the precise routing of refrigerant within the installation. As part of the Lines, Hoses and Pipes group, it ensures a leak-proof connection between air conditioning components, which translates into stable system operation and thermal comfort in the vehicle's cabin.

Specifications and technical data

• SKU: RHD-5QC816738C
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5QC816738C
• Substitutable numbers: 5QC816738C, 5QC 816 738 C
• Category: Hoses, Lines & Pipes

Application and function in the air conditioning system

This air conditioning pipe is an A/C system component responsible for the safe transport of the refrigerant between individual system parts. A correctly selected and installed A/C line:

• maintains the required system tightness at high operating pressures,
• minimizes pressure drops along the pipe section,
• ensures stable operating conditions for the compressor and other components,
• reduces the risk of refrigerant and compressor oil loss.

Thanks to its fitment for the specific Tiguan AX1 generation, the pipe maintains the correct routing geometry, which facilitates installation and reduces mechanical stress on the connections.

Original origin and fitment

The pipe comes from the Volkswagen OE line, which means it complies with the vehicle manufacturer's factory standards. Original manufacturing translates into:

• precise fit with brackets and mounts on the body,
• compatibility with factory connectors and seals,
• maintenance of flow parameters specified by the A/C system designers.

Such a solution is particularly beneficial for repairs where the repeatability of factory cooling characteristics and the absence of the need for installation modifications are important.

Characteristics of the used component

The offered pipe is a used component, which allows for an economical repair of the air conditioning system while maintaining the original specification. In practice, this means the ability to restore the efficiency of the A/C installation without the need to invest in more expensive replacements, while maintaining compliance with the factory design.

Before installation, a standard service procedure is recommended: checking the tightness of the entire system, replacing seals at connection points, and performing a pressure test and refrigerant filling in accordance with the vehicle manufacturer's recommendations.

Benefits of using an original A/C pipe

Using this pipe in the Tiguan Mk2 AX1 air conditioning system allows for:

• maintaining the factory interior cooling characteristics,
• reducing the risk of leaks resulting from mismatched pipe geometry,
• easier installation thanks to the preservation of original mounting points,
• consistency with other Volkswagen A/C system components.

For workshops and users, this means a predictable repair result and the possibility of faster completion of service work without additional modifications.

System expansion and selection of other components

If you are planning a comprehensive repair or upgrade of the air conditioning zone in your Volkswagen and need other elements from the same group, such as additional lines, flexible hoses, or rigid pressure pipes, check the available parts in the Volkswagen Lines, Hoses and Pipes category.

For those interested in a broader look at the technical solutions used by this brand, including various system configurations and the selection of used parts, an article describing the evolution of sports models may be helpful – you can find it here: Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – design changes and VW car parts.