Audi RS3 8V Fuel Rail Injector 2.5 TFSI Petrol is an original component of the petrol fuel system, designed for the 2.5 TFSI engine in the Audi RS3 8V model. The precise design of the fuel rail ensures stable fuel supply and supports the proper operation of the powertrain during dynamic driving.
Specifications and technical data
- SKU: 07K133681B
- Mark: Audi
- Condition: Used
- OEM Part Number: 07K133681B
- Substitutable numbers: 07K133681B, 07K 133 681 B
- Fuel type: Petrol
- Category: Fuel Injectors
Technical Characteristics of the Audi RS3 8V Fuel Rail
The fuel rail in this model is responsible for the even distribution of petrol to individual injectors, which is crucial for maintaining the correct mixture composition in the 2.5 TFSI engine. This component belongs to the Injector Nozzles category, therefore its geometry and flow are adapted to high loads and operation across a wide RPM range.
The solution used in the Audi RS3 8V allows for:
- stable fuel pressure across the entire engine operating range,
- precise petrol dosing by the injectors,
- maintaining repeatable combustion parameters during track and road driving.
Purpose and Application in the Petrol System
The fuel rail has been designed to work with the petrol fuel system in the 2.5 TFSI unit, where high resistance to temperature, pressure, and variable loads is required. A correctly selected component of this type directly impacts:
- engine response to throttle and smoothness of acceleration,
- idle stability,
- exhaust emissions and compliance with factory engine control unit maps.
In case of modifications or servicing of the injection system, using an original fuel rail helps maintain the factory operating parameters of the powertrain without the need for additional tuning.
Condition, Origin, and Benefits of Choosing a Used Part
The offered fuel rail is an original Audi component from the aftermarket. A used element of this type is an attractive alternative to new parts, especially for routine repairs or engine rebuilds after a fuel system failure. Choosing an original part from dismantling allows for maintaining:
- factory fitment to the 2.5 TFSI unit,
- compatibility with engine ancillaries and the stock wiring harness,
- optimal cost-to-quality ratio compared to aftermarket replacements of unknown origin.
Before installation, standard inspection of the fuel system is recommended, including the tightness of the lines and the condition of the injectors, to fully utilize the potential of the installed fuel rail.
Operation, Diagnostics, and Prevention of the Injection System
A functional fuel rail, combined with properly working injector nozzles, is crucial for the durability of a petrol engine. Symptoms such as uneven running, power loss, or increased fuel consumption may indicate the need for verification of the entire fuel system. It is worth remembering that similar symptoms also occur in diesel units – more on how to recognize injection problems can be found in the article diesel injector faults – symptoms and consequences of neglect, which well illustrates the importance of regular diagnostics.
Other Audi Injector Nozzles
If you are looking for other Audi injector nozzles for servicing or upgrading the fuel system in your car, check out our dedicated category Audi Injector Nozzles, where you will find a wide selection of fuel supply components tailored to various models of this brand.
