Audi A6 C8 EGR Throttle Body Exhaust Recirculation Valve D 059131477H

Audi A6 C8 EGR Throttle Body Exhaust Gas Recirculation Valve D is a component from the EGR Valves and Parts category, designed for the exhaust gas recirculation system in Audi vehicles. It is responsible for precise control of exhaust gas flow within the EGR circuit, which directly impacts engine running smoothness and emission levels. A used, original part from disassembly is a sensible choice for drivers seeking a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 059131477H
• Mark: Audi
• Condition: Used
• OEM Part Number: 059131477H
• Substitutable numbers: 059131477H, 059 131 477 H
• Part type: EGR Valve
• Category: EGR Parts & Valves

Function and Role in the EGR System

The EGR throttle body in the Audi A6 C8 works in conjunction with the exhaust gas recirculation valve, regulating the amount of exhaust gas directed back into the intake manifold. A properly functioning component:

• stabilizes engine operation across various load ranges,
• reduces nitrogen oxide emissions through controlled exhaust gas intake,
• supports the correct operation of exhaust emission control systems,
• minimizes the risk of diagnostic errors related to the EGR system.

Thanks to its proper flow characteristics and specific Audi application fitment, this component helps maintain the original operating parameters of the exhaust gas recirculation system.

Benefits of Using an Original Audi Part

Using an original EGR throttle body in the Audi A6 C8 offers a range of practical advantages in daily operation:

• Full Compatibility with Vehicle Electronics – proper cooperation with the factory engine control unit and sensors.
• Stable Operating Parameters – maintaining the manufacturer's specified throttle opening and closing characteristics.
• Reduced Adaptation Issues – no need for installation or software modifications.
• Better Repeatability of Operation compared to aftermarket alternatives of uncertain origin.

For users who want to maintain the EGR system in a configuration close to the factory setup, a used Audi part is often a more predictable solution than random aftermarket replacements.

Condition, Origin, and Practical Application

The offered EGR throttle body is a used part, sourced from a disassembled Audi vehicle. Such components are often chosen by workshops and individual users when the following are important:

• maintaining the original manufacturer's specifications,
• an optimal cost-to-quality ratio,
• the ability to quickly replace a worn or damaged part.

Before installation, standard servicing procedures are recommended: visual inspection, checking the free movement of working parts, and – if necessary – adaptation in the engine control unit according to the vehicle manufacturer's procedure.

Part Selection and Technical Support

To correctly select the EGR throttle body for a specific Audi A6 C8 version, it is advisable to verify compatibility with the vehicle's documentation and markings on the old part. Helpful steps may include:

• comparing the design of the housing and electrical connectors,
• checking compatibility with the intake system and mounting points,
• consulting with a mechanic or technical advisor.

If you are considering a broader range of powertrain work, including the replacement of drivetrain components, a guide on diagnostics and part selection may be useful – detailed information can be found in the article Clutch and Dual-Mass Flywheel – Diagnostics and Part Selection for the Powertrain.

In the context of choosing between a refurbished part and a used original part from disassembly, it is also worth familiarizing yourself with a practical discussion of the advantages and limitations of both solutions in the material Refurbished or Used Original – Which Part to Choose for Repairs?, which will help you make an informed service decision.

Related Components of the Audi Exhaust Gas Recirculation System

If you are planning comprehensive servicing of your Audi's exhaust gas recirculation system and need other components that work with the throttle body, such as additional valves, hoses, or control elements, check the available parts in the Audi EGR Valves and Parts category.