VW Golf MK7 Audi A3 8V A4 B8 1.4 Fuel Rail Injectors is a complete fuel rail with gasoline injectors, designed for 1.4 engines in popular VAG models. This is an OEM solution from the injector nozzles category, allowing for efficient replacement of a worn fuel supply system and restoring stable engine operation.
Specifications and technical data
- SKU: 04E133320D-2
- Mark: Audi
- Condition: Used
- OEM Part Number: 04E133320D
- Substitutable numbers: 04E133320D, 04E 133 320 D
- Fuel type: Petrol
- Part type: Fuel Injector
- Category: Fuel Injectors
Purpose and Technical Characteristics
The fuel rail with injectors has been designed for 1.4 gasoline engines used in, among others, the VW Golf MK7 and Audi A3 8V and A4 B8 models. The use of the original design ensures proper fuel atomization parameters, correct operating pressure, and correct compatibility with the factory engine control unit.
The component belongs to the injector nozzles category, responsible for precise gasoline dosing into the combustion chamber. A correctly selected fuel rail with injectors is crucial for:
- stable idle operation and during acceleration,
- maintaining the correct mixture composition across the entire load range,
- reducing fuel consumption while maintaining factory performance,
- reducing exhaust emissions to the level specified by the manufacturer.
Application in Gasoline Engines
The system has been prepared for cooperation with gasoline powered units. The appropriate characteristics of the injectors, opening time, and fuel spray pattern are adapted to the combustion chamber and intake manifold geometry in VAG 1.4 engines. This allows for maintaining:
- even supply to all cylinders,
- smooth throttle response without jerking or misfires,
- correct cooperation with lambda sensors and the catalytic system.
Selecting a fuel rail with injectors that matches the factory specification is particularly important in modern gasoline engines, where the engine control unit precisely controls the fuel dose and injection time.
Benefits of Using an Original Audi Fuel Rail
The offered component comes from the Audi OE line, which means adherence to factory manufacturing and fitting standards. In practice, this translates to:
- secure fit with the intake manifold and engine accessories,
- compatibility with factory brackets and mountings,
- correct connection of the fuel system and wiring harness,
- the possibility of using existing replacement part numbers for compatibility verification.
This ensures a predictable installation process, without the need for modifications or fitting universal parts. This is especially important in vehicles where maintaining the original fuel system configuration is crucial.
Condition, Verification, and Service Application
The fuel rail with injectors is a used component, allowing for economical repair while maintaining original quality. This type of component is often chosen as a service solution in cases of:
- engine running problems caused by worn injectors,
- mechanical damage to the fuel rail (e.g., after a collision or improper disassembly),
- the need for a quick replacement of the complete assembly instead of regenerating individual injectors.
Before installation, the standard service procedure is recommended: checking the fuel system for leaks, verifying the condition of the seals, and adapting parameters in the engine control unit, if required by the vehicle manufacturer.
Audi Injector Nozzles – Related Offer and Technical Knowledge
If you are looking for other Audi injector nozzles for your car, check out our dedicated category: Audi injector nozzles. There you will find a wide selection of fuel supply system components tailored to different models and engine versions.
Although the presented component is for a gasoline engine, many principles of injector system diagnostics are common to different types of units. It is worth familiarizing yourself with the material discussing the symptoms and consequences of improper injector operation in diesel engines: diesel injector faults – symptoms, consequences, and diagnostics. This will help you better understand the importance of a properly functioning injector system for engine durability and driving comfort.
Summary
VW Golf MK7 Audi A3 8V A4 B8 1.4 Fuel Rail Injectors is a practical service solution for users of 1.4 gasoline engines in VAG vehicles. The original design from the injector nozzles category ensures proper operating parameters, compatibility with factory equipment, and the possibility of economical repair of the fuel supply system while maintaining high vehicle functionality.
