Audi A3 8V VW Golf Mk7 Seat Leon Mk3 Throttle Body 2.0 TDI 04L128063M

Audi A3 8V VW Golf Mk7 Seat Leon Mk3 Throttle Body 2.0 TDI is an original VAG group component designed for the intake system of diesel engines. This used, tested throttle body from the Throttle Bodies category allows for the restoration of proper engine operation, idle stabilization, and correct control of the amount of air intake. It is a solution for users seeking factory fitment and predictable performance parameters for the 2.0 TDI engine.

Specifications and technical data

• SKU: 04L128063M
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L128063M
• Substitutable numbers: 04L128063M, 04L 128 063 M
• Part type: Throttle Body
• Category: Throttle Bodies

Purpose and Function of the 2.0 TDI Throttle Body

The throttle body in a 2.0 TDI engine is responsible for precise control of airflow in the intake manifold, working in conjunction with the engine control system and the exhaust gas recirculation system. In vehicles such as the Audi A3 8V, VW Golf Mk7, or Seat Leon Mk3, it is a key component for:

• maintaining stable idle RPM,
• proper engine shutdown without jerking,
• optimal EGR system operation and emission reduction,
• smooth response to load in various driving conditions.

By using an original throttle body, compatibility with the factory engine control unit calibration is maintained, which reduces the risk of diagnostic errors and improper engine operation.

Benefits of Using an Original Audi Throttle Body

A component from the Audi OE line ensures a design that meets the vehicle manufacturer's requirements. In practice, this means:

• factory fitment to the intake manifold and electrical system,
• correct operating characteristics of the actuator and throttle plate,
• compatibility with the engine control unit software in A3 8V, Golf Mk7, and Leon Mk3 models,
• retention of original 2.0 TDI engine performance parameters after replacing a damaged component.

A used OEM throttle body is a solution that allows for reduced repair costs while maintaining the factory engine performance characteristics and proper cooperation with other intake system components.

Condition, Verification, and Installation Aspects

The offered throttle body is in used condition, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. This type of component is particularly beneficial for repairs where compliance with factory specifications and quick replacement without additional modifications are important.

For correct part selection, it is advisable to use OEM markings and interchangeable numbers visible in the technical specifications – this helps avoid compatibility issues within different variants of the 2.0 TDI engine used in Audi, Volkswagen, and Seat. After installation, it is recommended to perform throttle body adaptation using an appropriate diagnostic tester so that the engine control unit correctly interprets its position and operating range.

Application on the MQB Platform (Audi A3 8V, VW Golf Mk7, Seat Leon Mk3)

The throttle body is designed for vehicles based on the MQB platform, such as the Audi A3 8V, VW Golf Mk7, and Seat Leon Mk3 with the 2.0 TDI engine. The common mechanical and electronic architecture of these models means that using an original component from this group helps maintain:

• consistent performance parameters throughout the intake system,
• correct cooperation with air pressure and temperature sensors,
• stable performance and smooth engine operation in daily use.

For users who want to keep their car in line with factory specifications, choosing an original throttle body from the same model family is a technically safe and predictable solution.

Intake System Expansion and Audi Part Selection

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as additional throttle bodies, control elements, or related intake components, check the available parts in the Audi Throttle Bodies category.

To better understand the importance of original components in these brands' engines and the principles of selecting used parts by OEM numbers, it is worth reading the article Audi's Five-Cylinder Engine – A Legend from Quattro to RS3 and How to Care for It with Original Audi Parts, which discusses a practical approach to part selection based on factory markings.