Description
Audi A4 B8 A5 8F 8T 2.0 TDI CGLC Turbocharger The Turbo Turbine is an original equipment turbocharger component designed for the 2.0 TDI diesel engines in the Audi A4 B8 and Audi A5 8F / 8T models. A used OEM turbocharger ensures factory fit, predictable operating parameters, and consistency with the factory characteristics of the engine.
Specifications and technical data
- SKU: 03L145721B-1
- Mark: Audi
- Condition: Used
- OEM Part Number: 03L145721B
- Substitutable numbers: 03L145721B, 03L 145 721 B
- Category: Turbos & Parts
Technical characteristics of the turbocharger
The turbocharger for the Audi A4 B8 and A5 8F / 8T 2.0 TDI CGLC is designed as a component of the diesel engine’s supercharging system, increasing the amount of air delivered to the combustion chamber. This allows the engine to achieve higher efficiency, improved flexibility throughout the entire rev range, and stable performance while maintaining the manufacturer’s factory specifications.
As part of the turbocharger and parts group, this component works with the exhaust and intake systems to maintain proper boost pressure and proper response to engine load. The OEM design allows for maintaining proper torque characteristics, which translates into a comfortable and predictable ride.
Intended use and fit for Audi
This turbocharger is designed for use in Audi cars with the 2.0 TDI engine coded CGLC, installed in the A4 B8 and A5 8F / 8T generations. Its original Audi OE designation means retaining the factory mounting points, proper oil and air line routing, and compatibility with the stock engine components.
This allows installation to be similar to replacing a factory component, without the need for structural modifications. This solution is particularly beneficial for users who expect to maintain the vehicle’s stock configuration, stable engine operation, and easier future diagnostics.
Used condition – a conscious technical choice
The turbocharger offered is in used condition, significantly reducing the cost of repairing or upgrading the turbocharger while maintaining the original manufacturer’s specifications. This type of component is a good solution for drivers who want to restore the efficiency of their turbocharger system without investing in a new part from the dealership.
Choosing a used OEM turbocharger is especially beneficial when you want:
- maintaining the factory fit for the specific Audi engine and model,
- maintaining the standard operating parameters of the drive unit,
- reducing service costs while using the original component.
If you want to better understand how to safely choose aftermarket parts and what to look for when buying, the guide: how to wisely buy used parts at an automotive store will be helpful.
Practical application and benefits of installation
Installing a turbocharger in the 2.0 TDI CGLC engine restores proper boost pressure, reduces power loss, and improves throttle response. A properly selected component from this category affects:
- stable engine operation across the full speed range,
- smoother acceleration and better flexibility in higher gears,
- maintaining the factory combustion parameters and operating culture of the drive unit.
For users planning further modifications or vehicle upgrades, maintaining the integrity of the entire drivetrain is crucial. The original turbocharger provides a solid foundation for further service and potential modifications within the manufacturer’s specifications.
Other Audi turbochargers and how-to materials
If you’re looking for other turbochargers for Audi, check out our dedicated offer: turbochargers for Audi . There you’ll find a wide selection of components from the same category, tailored to various models and engine versions.
If you’re interested in improving performance and realizing the potential of powertrains in sports cars, it’s worth checking out this article about the MINI John Cooper Works: MINI John Cooper Works – What Makes It Different and How to Improve Your MINI . Although it’s about a different brand, it illustrates the approach to consciously improving a car using carefully selected components.






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