Audi A6 C7 3.0 TDI CLAA Diesel EGR Valve Line Hose Pipe Tube 059131525BJ

Audi A6 C7 3.0 TDI CLAA Diesel EGR Valve Line Hose Pipe Tube is an exhaust gas recirculation system component designed for the 3.0 TDI CLAA diesel engines in the Audi A6 C7 generation. It is responsible for a secure, airtight connection between the EGR valve and other components, which promotes stable engine operation and maintains correct emission parameters. Thanks to a design consistent with factory solutions, this hose maintains the integrity of the entire intake and exhaust system and facilitates vehicle maintenance.

Specifications and technical data

• SKU: 059131525BJ
• Mark: Audi
• Condition: Used
• OEM Part Number: 059131525BJ
• Substitutable numbers: 059131525BJ, 059 131 525 BJ
• Fuel type: Diesel
• Category: EGR Parts & Valves

Purpose and function in the EGR system

The Audi A6 C7 3.0 TDI CLAA Diesel EGR Valve Line Hose Pipe Tube operates in a demanding environment of high temperatures and variable exhaust pressure, which is why its correct selection has a direct impact on the stability of the diesel engine. In the 3.0 TDI CLAA unit, it is responsible for directing a portion of the exhaust gases back into the intake system, which reduces nitrogen oxide emissions and supports the vehicle's compliance with environmental standards. The properly matched cross-section and geometry of the hose help maintain proper exhaust flow, minimizing the risk of disruptions in EGR valve operation.

In the event of improper operation of the recirculation system – manifested by a drop in power, unstable idle, or errors saved in the ECU – checking the condition of the EGR hose is one of the basic diagnostic steps. Using a component that is structurally consistent with the factory solution allows for restoring proper exhaust gas circulation without the need for system modifications.

Compatibility with the 3.0 TDI CLAA diesel engine

The presented hose has been developed for use with the 3.0 TDI CLAA diesel engine used in the Audi A6 C7. This means it is matched to the operating characteristics of the diesel unit, including the temperature ranges, pressures, and flow rates typical for this type of construction. In practice, this translates into:

• proper routing of the hose in the engine bay without installation stress,
• maintaining connection tightness during operation under load,
• reducing the risk of leaks resulting in exhaust gases escaping the system.

By maintaining the parameters appropriate for the diesel system, the hose supports the smooth operation of the engine and the correct functioning of emission control systems.

EGR Valves and Parts category – service application

This element belongs to the EGR Valves and Parts group, i.e., components responsible for exhaust gas recirculation in diesel engines. Replacing the recirculation hose is particularly important in situations where the following occur:

• traces of overheating or cracks on the surface of the hose,
• leaks causing exhaust gas discharge,
• EGR system errors related to improper flow.

Selecting a hose from the same functional group as the EGR valve allows for maintaining system consistency and facilitates subsequent service activities, such as cleaning or exhaust gas recirculation diagnostics.

Characteristics of the used OEM part

The offered recirculation hose comes from the Audi OEM parts group, which means it is compatible with the factory design solutions used in the A6 C7 model. The used nature of the element makes it a reasonable choice for repairs where maintaining original geometry and materials is important, without the need to resort to replacements with uncertain parameters. Such components are frequently used in professional workshops specializing in diesel engine service, where installation repeatability and predictable part behavior during operation are essential.

Choosing a used recirculation hose from the OEM group allows for reducing repair costs while maintaining compatibility with other EGR system elements, such as the valve, exhaust gas cooler, or intake manifold.

Technical support and knowledge about salvaged parts

When planning repairs using salvaged components, it is worth relying on proven sources of knowledge. In the context of electronics and control modules, an article describing a practical approach to regeneration and replacement of elements in premium segment vehicles may be helpful – especially when combining new and used subassemblies in one car. You can find more on this topic in the material: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using salvaged parts?.

If you are interested in a broader discussion of the advantages of using original aftermarket components instead of replacements, it is worth reading a practical guide: 5 reasons why a used OEM part is a better choice than a replacement. This will allow you to better assess when a used OEM element will be the optimal solution in your case.

If you are planning a comprehensive repair or upgrade of the exhaust gas recirculation area in your Audi and need other elements from the same group, such as EGR valves, connecting hoses, or mounting elements, check the available parts in the Audi EGR Valves and Parts category.