Audi Q3 8U Volkswagen Scirocco Mk3 Turbocharger Actuator 2.0 TFSI 06K145715C

The Audi Q3 8U / VW Scirocco Mk3 2.0 TFSI turbocharger actuator is an original equipment turbocharger and parts component designed for turbocharging systems in diesel vehicles. This OEM component ensures factory fit, stable turbine operation, and predictable engine performance.

Specifications and technical data

• SKU: 06K145715C-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 06K145715C
• Substitutable numbers: 06K145715C, 06K 145 715 C
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and technical characteristics

This turbocharger actuator for Audi and VW is a component of the turbine geometry control system or turbine bypass valve in diesel engines. It is responsible for the precise positioning of the vanes or wastegate, which translates into proper boost pressure buildup across the full RPM range.

Thanks to its OEM design, the actuator works with the factory engine control unit, maintaining the original boost maps. This is important both in stock vehicles and in cars with software modifications, where stable, repeatable turbine operation without uncontrolled pressure peaks is required.

Benefits of using the original turbine actuator

Replacing a worn or damaged component with an original actuator allows you to restore proper operation of the supercharging system without the need to interfere with the installation or adapt the mounting. In practice, this means:

• stable boost pressure throughout the entire rev range,
• better throttle response and predictable acceleration,
• reducing the risk of turbine overloading or underloading,
• reducing failure modes related to boost control errors,
• maintaining the factory operating parameters of the diesel engine.

A used OEM part is a reasonable compromise between cost and quality – you get a component designed by the vehicle manufacturer, while maintaining the original geometry, mounting points and performance characteristics.

Condition, assembly and service aspects

The actuator comes from a disassembly and is offered as a used part, reducing the cost of repairing the turbocharger while maintaining factory-standard workmanship. Before installation, standard workshop procedures are recommended: inspection of the mechanical operating range, leaks, and proper operation in conjunction with the turbocharger.

Due to the OEM design, installation is largely plug-and-play, with no mounting or installation modifications required. In many models, after replacement, only adaptation or basic calibration of the engine control unit is required, performed using a suitable diagnostic tester.

Turbine actuator in tuning and modification projects

In vehicles with engine control software modifications , consistent operation of the turbine actuator is particularly important. A malfunctioning component can lead to unstable boost, power drops, or the engine entering limp mode. Therefore, when planning or implementing a tuning project, it's important to carefully select aftermarket components.

If you want to better prepare for buying used supercharger components and avoid common modification mistakes, check out our blog article: Buying Used Car Tuning Parts – The Most Common Mistakes and How to Avoid Them . This is a practical supplement to your knowledge before investing in engine accessories.

Other turbochargers and parts for Audi

If you're also looking for other turbochargers and parts for Audi, check out our dedicated offer: turbochargers and parts for Audi . You'll find a wide selection of aftermarket parts and OEM components, allowing for a comprehensive approach to servicing or upgrading your car's turbocharger system.