Mercedes W205 M274 Petrol Fuel Injectors Injection Rail Line Pipe A2740701095

Mercedes W205 M274 fuel rail with injectors is an original gasoline fuel system component designed for M274 series engines in Mercedes C-Class W205 models. The complete fuel rail and injector assembly ensures precise fuel delivery, stable engine operation, and proper combustion parameters.

Specifications and technical data

• SKU: A2740701095
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740701095
• Substitutable numbers: A2740701095, A 274 070 10 95
• Fuel type: Petrol
• Category: Fuel Injectors

Technical characteristics of the Mercedes W205 M274 fuel rail

The presented fuel rail with injectors for M274 engine belongs to the injector nozzles category and is a factory solution used by the manufacturer in gasoline units. The assembly is designed for:

• stable fuel pressure across the entire engine load range,
• uniform gasoline atomization in each cylinder,
• precise dose control by the engine control unit,
• compliance with emission standards for the given M274 engine generation.

The injection system in Mercedes gasoline engines is sensitive to component quality, which is why using an original fuel rail with injectors helps maintain factory operating parameters, smooth running, and proper throttle response.

Purpose and application in gasoline engines

The fuel rail with a set of injectors operates within the gasoline engine fuel system, responsible for delivering the correct amount of fuel to the combustion chamber. A properly selected component from this group:

• facilitates cold and hot starting,
• reduces uneven idling,
• supports smooth acceleration without jerking,
• helps maintain stable fuel consumption close to factory levels.

In cases of symptoms such as misfires, power loss, or excessive fuel consumption, replacing the fuel rail and injector assembly is one of the key service actions to restore the correct operating parameters of the M274 unit.

Condition, origin, and benefits of using a used part

The offered Mercedes W205 M274 fuel rail with injectors is from original Mercedes production and is classified as a used part. In practice, this means:

• retained factory geometry and fit to the engine head and accessories,
• compatibility with the factory engine control unit and ECU software,
• can be installed as a replacement for a worn or damaged assembly without the need for installation modifications.

Choosing an original, used fuel rail is a sensible solution for users who want to maintain a high level of fuel system reliability while optimizing repair costs compared to purchasing a new component.

Why choose original Mercedes injector nozzles

The injection system in modern gasoline engines operates under significant thermal and pressure loads, which is why using components from the injector nozzles category from the vehicle manufacturer directly impacts:

• maintaining predictable engine behavior across the entire RPM range,
• reducing the risk of secondary damage (e.g., to the catalytic converter or lambda sensors) resulting from incorrect mixture composition,
• stable cooperation with the ignition system and emission control systems,
• easier diagnostics in case of potential faults, by maintaining factory operating parameters.

Replacing the fuel rail and injector assembly with an original unit is particularly recommended where difficult-to-diagnose engine problems occur, and previous cleaning or repair attempts have not yielded the expected results.

More information and related materials

If you are looking for other components from the Mercedes injector nozzles category, check out the Mercedes injector nozzles available in our store to find the right component for your model.

For a comparison of symptoms and diagnostic methods for injection systems, it is also worth reading the guide on our blog: diesel injector faults – how to recognize them and what are the consequences of neglecting them. Although it concerns diesel engines, it describes universal symptoms of injection problems and an approach to diagnostics that can also be helpful when working with gasoline engines.