Audi S5 8T Intake Manifold Flange Union Throttle Body Housing 4.2 FSI 079133021C

The Audi S5 8T Manifold Flange Throttle Body Housing 4.2 FSI is a component from the intake manifolds category, designed for Audi fuel systems. This used OEM part ensures proper airflow geometry and stable throttle body mounting in diesel-powered engines, contributing to predictable engine performance. It's a solution for users seeking a proven, original component instead of replacements with uncertain parameters.

Specifications and technical data

• SKU: 079133021C
• Mark: Audi
• Condition: Used
• OEM Part Number: 079133021C
• Substitutable numbers: 079133021C, 079 133 021 C
• Fuel type: Diesel
• Category: Intake Manifolds

Purpose and Function in the Intake System

The manifold flange plays a crucial role in connecting the throttle body housing to the intake manifold, ensuring a seal and stable air stream guidance. In Audi diesel units, the use of a correctly selected flange is important for:

• maintaining proper intake manifold pressure,
• precise control of the amount of air drawn in by the throttle body,
• limiting leaks that could cause performance drops or engine control unit errors.

Thanks to its design conforming to factory Audi standards, the throttle body housing integrates with the manifold without requiring modifications, simplifying installation and servicing.

Advantages of Using an Original Audi Manifold Flange

Using an original manifold flange in an Audi diesel engine allows for the preservation of manufacturer-intended parameters. The most significant benefits include:

• Factory Fitment – compatibility with the intake manifold and throttle body housing geometry, without issues with alignment and surface mating.
• Stable throttle body mounting – reduction of vibrations and stresses, promoting smooth operation of the intake system.
• Optimal airflow – maintaining cross-sections and channel shapes consistent with Audi's design, supporting proper cylinder filling.
• Ability to use existing mounting points – no need for installation modifications or additional adapters.

For users who are upgrading or servicing their intake system, choosing an original Audi intake manifold component is a way to maintain stable engine operating parameters while keeping costs reasonable.

Characteristics of the Used Part

The offered manifold flange is a used part obtained from disassembly. This means the component retains its operational functionality while offering cost savings compared to a new item. This type of solution is particularly attractive for:

• routine repairs on vehicles with higher mileage,
• restoring the completeness of the intake system after previous modifications,
• servicing vehicles where maintaining original Audi parts is a priority.

Choosing a used manifold flange helps maintain the structural integrity of the intake system, which is especially important in diesel engines sensitive to leaks and airflow deviations.

Integration with Exhaust System and Performance Tuning

In high-performance vehicles like the Audi S5, a correctly selected intake manifold component is also important in the context of exhaust system modifications and overall engine characteristics. A stable, sealed intake facilitates:

• maintaining repeatable boost and mass airflow values,
• better cooperation with performance exhaust systems,
• reducing the risk of discrepancies between ECU maps and actual cylinder filling.

If you are planning modifications in the area of manifolds and catalytic converters, it's worth checking out the guide on our blog – performance exhaust systems and used manifolds in popular brands, where you'll find practical tips on component selection.

Other Audi Intake Manifolds and Knowledge about Used Parts

If you are also looking for other Audi intake manifolds for various models of this brand, check out our dedicated category: Audi intake manifolds. There you will find a wide selection of intake components tailored to many engine types.

For those who want to better understand the specifics of the used parts market, we also recommend the guide – a guide to the most frequently chosen used car parts, helpful for planning repairs and upgrades using original components.