Audi A8 D4 Q5 Sportsback 3.0 Diesel Connecting Hose Line Tube Pipe 4H0131850H

Audi A8 D4 Q5 Sportsback 3.0 Diesel Connecting Hose Line Tube Pipe is an original component from the Lines, hoses and pipes group, designed for diesel systems in premium Audi models. This used OEM part ensures a factory fit, stable medium flow, and predictable performance of the entire system under daily operating conditions. It is a practical solution for workshops and users who expect compatibility with the factory installation without the need for modifications.

Specifications and technical data

• SKU: 4H0131850H
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0131850H
• Substitutable numbers: 4H0131850H, 4H0 131 850 H
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the vehicle system

The presented connecting pipe is a component dedicated to Diesel engines in Audi A8 D4 and Q5 Sportback 3.0 vehicles. Its task is to provide a secure, leak-proof connection between the relevant sections of the installation, which translates into stable engine operation and consistent performance parameters. The design of the pipe has been engineered for specific models, ensuring the correct routing geometry and appropriate rigidity of the entire section.

Construction and technical fitment

As an element from the Lines, hoses and pipes group, the connecting pipe is manufactured to ensure resistance to typical loads occurring in diesel systems – both in terms of temperature and medium pressure. The shape and diameter are adapted to the factory connectors in the Audi A8 D4 and Q5 Sportback, which facilitates installation and reduces the risk of leaks resulting from poor fitment. The use of the original geometry allows for maintaining the correct routing of the pipe in relation to other components in the engine bay.

Benefits of using an original pipe

Using an original connecting pipe in a diesel system offers a number of practical benefits:

• factory fitment for the specific engine and body configuration,
• preservation of the medium flow path designed by the manufacturer,
• reduction of the risk of leaks and system performance drops,
• easier diagnostics and service due to compliance with Audi technical documentation.

For workshops, this means more efficient replacement and a lower risk of complaints, and for the user – more predictable powertrain operation and stable performance parameters of the diesel engine.

Condition of the item and service application

The pipe is offered as a used part, which allows for economical repair while maintaining the manufacturer's original specifications. This solution is particularly beneficial for servicing vehicles that are used intensively, where both technical compliance and reasonable maintenance costs are important. Replacing a damaged or worn section with an original connecting pipe allows for restoring the correct tightness and functionality of the system without interfering with its design.

Expanding the scope of service work

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional lines, flexible hoses, or rigid pipes, check out the available parts in the Audi lines, hoses and pipes category.

For users who want to consciously select used components and minimize the risk of a misguided purchase, a practical guide describing the principles of verifying parts, selection by OEM numbers, and proven purchasing strategies may be helpful – you can find it in the article Safe purchase of used car parts online – a step-by-step guide.