The Audi S5 8T Q7 4L Petrol Fuel Rail Injectors Left is an original gasoline fuel system component designed for precise fuel delivery in Audi engines. This product from the injector nozzles category ensures stable engine operation and correct fuel spray formation under demanding operating conditions.
Specifications and technical data
- SKU: 079133316BC-1
- Mark: Audi
- Condition: Used
- OEM Part Number: 079133316BC
- Substitutable numbers: 079133316BC, 079 133 316 BC
- Location on the vehicle: Right
- Fuel type: Petrol
- Category: Fuel Injectors
Purpose and Function in the Fuel System
The presented fuel rail with injectors is a component of the petrol engine fuel system, responsible for evenly distributing fuel to individual cylinders. The use of a complete fuel rail with injectors allows for maintaining proper fuel pressure, a stable fuel dose, and a repeatable injection timing, which translates to smooth engine operation.
Its placement on the vehicle on the right side means the component is structurally adapted to a specific engine and intake system configuration, facilitating installation and minimizing the risk of leaks. This ensures the fuel rail works with the factory engine control unit, maintaining manufacturer-specified parameters.
Benefits of Using an Original Audi Fuel Rail
Using an original fuel rail with injectors in Audi S5 8T and Q7 4L models offers a range of practical technical benefits:
- Stable Fuel Dosing – maintaining the correct fuel-air mixture across the full engine load range.
- Improved Engine Smoothness – reducing vibrations, misfires, and irregular idling.
- Optimized Fuel Consumption – enhancing throttle response and potentially reducing fuel consumption with efficient accessories.
- Factory Fitment – ensuring compatibility with the original Audi fuel and engine control system.
Thanks to its design for petrol engines, the fuel rail provides the appropriate fuel atomization characteristics, which are crucial for maintaining power, torque, and proper catalytic converter operation.
Technical Characteristics and Installation
The fuel rail with injectors has been designed as a high-pressure component for gasoline fuel systems. It includes a set of injectors integrated into the rail, simplifying the installation and servicing of the entire assembly as a single unit. This solution reduces the number of connections, and thus potential leak points.
Its placement on the right side of the engine requires adaptation to a specific engine variant. Therefore, when selecting parts, it is crucial to pay attention to:
- Vehicle Model Compatibility (Audi S5 8T, Audi Q7 4L),
- Fuel Type – in this case, a petrol system,
- Mounting Orientation – the right side in the engine bay.
A configured assembly like this allows for the efficient restoration of full injector system functionality without the need for fuel system modifications.
Product Condition and Practical Application
The fuel rail with injectors is offered as a used component, providing an attractive solution for users seeking original Audi parts within a reasonable budget. For injector systems, using OEM parts from disassembly often allows for maintaining factory engine operating parameters at a lower cost than with new aftermarket replacements.
When replacing the fuel rail, it is worth paying attention to symptoms such as starting difficulties, rough idling, power loss, or increased fuel consumption. For deeper knowledge on injector system diagnostics, including differences between petrol and diesel, the article: diesel injector faults – symptoms, consequences, and diagnostics may be helpful.
If you are considering the choice between new and used fuel system components, it is advisable to review the cost and durability analysis in the material: new or used? a comparison of car parts costs and quality. This will allow you to make an informed decision about when a used fuel rail will be the optimal solution.
Related Audi Injector Nozzles
For upgrades or comprehensive fuel system repairs, consider selecting other components from the same group. If you need other Audi injector nozzles compatible with different models and engine configurations, check out the Audi injector nozzles available in our assortment to select components that meet your vehicle's requirements.
