Audi Q7 4M Q8 Mk2 VW Touareg Mk3 A/C Air Condition Hose Line Pipe 4M0816738M

Audi Q7 4M Q8 Mk2 VW Touareg Mk3 A/C Air Condition Hose Line Pipe is an original cabin cooling system component designed for use in modern VAG group SUVs. Thanks to its factory geometry and precisely selected diameter, it ensures stable refrigerant pressure and proper cooperation with the compressor, condenser, and evaporator. This is a practical solution for users who want to restore full air conditioning efficiency while maintaining high manufacturing quality.

Specifications and technical data

• SKU: 4M0816738M
• Mark: Audi
• Condition: Used
• OEM Part Number: 4M0816738M
• Substitutable numbers: 4M0816738M, 4M0 816 738 M
• Part type: Hose
• Category: A/C Hoses & Fittings

Purpose and air conditioning system compatibility

The presented air conditioning hose is designed for use in interior cooling systems in Audi Q7 4M, second-generation Audi Q8, and third-generation VW Touareg models. It is responsible for the safe transport of refrigerant between system components, which has a direct impact on cooling efficiency, even temperature distribution in the cabin, and proper compressor operation.

Thanks to its factory profile and properly shaped connection ends, the hose works with original body mounts and engine bay components, which reduces the risk of stress, leaks, and unwanted vibrations during vehicle operation.

Hose construction and performance properties

The element belongs to the A/C hoses, lines, and connectors group, which means it combines flexible and rigid sections adapted for operation under increased pressure and in variable temperature conditions. The hose construction is optimized for:

• resistance to refrigerant operating pressure,
• reduction of flow losses across the entire working cross-section,
• stable routing in the engine bay and chassis,
• proper sealing at factory connections.

An element configured in this way allows for maintaining system tightness, which is crucial for preserving the correct amount of refrigerant and oil in the compressor and for long-term, trouble-free operation of the entire air conditioning installation.

Product characteristics and application benefits

The air conditioning hose intended for Audi and VW is an OEM part that maintains factory fitment for mounts and connectors in the group's vehicles. This facilitates installation, shortens service time, and minimizes the risk of errors when fitting replacements with uncertain geometry. For the user, this means predictable system behavior, correct operating pressures, and stable cooling performance in various road conditions.

The product is offered as a used item, which allows for an economical repair of the air conditioning system while maintaining the original manufacturing quality characteristic of the Audi brand. It is a reasonable choice for drivers looking for a compromise between repair costs and maintaining the factory operating parameters of the installation.

Professional installation and good service practices

Due to the importance of air conditioning hoses for the tightness of the entire system, installation in a specialized service center equipped with appropriate pressure testing and refrigerant filling equipment is recommended. During replacement, it is worth paying attention to:

• thorough cleaning and inspection of connection sockets,
• replacing seals at connection points,
• proper hose routing in accordance with factory brackets,
• leak testing after installation before fully filling the system.

Such an approach helps reduce the risk of re-leaking and ensures longer, trouble-free operation of the entire air conditioning installation in the Audi Q7, Q8, or VW Touareg.

Expanding the air conditioning system and selecting related components

If you are planning a comprehensive repair or upgrade of your Audi's air conditioning system and need other elements from the same group, such as additional lines, flexible hoses, or service connectors, check out the available parts in the Audi A/C hoses, lines, and connectors category.

When deciding to use pre-owned components in comfort and air conditioning systems, it is worth familiarizing yourself with practical tips on selecting original parts from disassembly – you will find them in the article Used parts for Mercedes - original parts from disassembly, which discusses the advantages of using factory components in premium segment vehicles.