Audi S6 C7 Turbocharger Twin Turbo 4.0 Quattro CTGE Petrol Left N/S 079145721

Audi S6 C7 Turbocharger Twin Turbo 4.0 Quattro CTGE Petrol Left N/S is an original component from the Turbochargers and parts group, designed for petrol-powered engines with the Quattro system. This is a solution for users expecting stable boost parameters, preservation of factory engine characteristics, and proper cooperation with control electronics.

Specifications and technical data

• SKU: 079145721
• Mark: Audi
• Condition: Used
• OEM Part Number: 079145721
• Substitutable numbers: 079145721, 079 145 721, 079 145 703 P, 079145703P
• Location on the vehicle: Left
• Fuel type: Petrol
• Part type: Turbocharger
• Category: Turbos & Parts

Purpose and compatibility

The presented turbocharger is dedicated to the boost system on the left side of the Audi S6 C7 generation model with a 4.0 petrol engine working with the Quattro drive. Using an original component from the same design group allows for maintaining the correct boost pressure, proper throttle response, and consistency with factory engine control unit maps. The element was designed as part of the V8 twin-turbo system, so its geometry, connection diameters, and mounting method are optimized for Audi's specific design solution. Thanks to this, installation is predictable, without the need for modifications to the intake or exhaust system.

Technical characteristics and role in the boost system

The left-side turbocharger is responsible for compressing the air mixture for one of the V8 engine heads, working with the right side of the system to achieve even cylinder filling. A properly selected component ensures:

• stable boost pressure build-up across the full RPM range,
• proper cooperation with the pressure control system and sensors,
• maintenance of factory performance and smooth operation of the 4.0 TFSI unit,
• consistency with the factory exhaust and intake system. As an element from the Turbochargers and parts category, this component is crucial for combustion efficiency, acceleration dynamics, and maintaining proper engine operating temperature, especially under load conditions typical for the S6 version.

Condition, origin, and benefits of use

The offered turbocharger is a used part, sourced from an original Audi system. Choosing such a solution allows for maintaining factory specifications while optimizing repair costs compared to new replacements. For workshops and private users, this means the possibility of restoring full efficiency to the boost system while maintaining compliance with the manufacturer's design. Using an original left-side turbocharger minimizes the risk of fitment issues, leaks, or improper operation of the control valve. This is particularly important in high-power density engines, where the precision of the boost system directly affects the durability of the power unit.

Selection by OEM number and purchase safety

When selecting a turbocharger for the Audi S6 C7, it is crucial to compare the OEM number and interchangeable numbers with vehicle data and service documentation. To facilitate this process and minimize the risk of error, it is worth using the practical tips described in the article Guide: how to choose the right car part by VIN and OEM number. There, you will find a step-by-step procedure, a list of questions for the seller, and a summary of parameters that are worth verifying before installation.

Related Audi Turbochargers and parts

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as turbo oil lines, exhaust manifolds, or additional boost system components, check out the available parts in the Audi Turbochargers and parts category.