Mercedes W203 M271 Petrol Fuel Rail Injectors is an original fuel supply system component designed for M271 petrol engines in Mercedes C-Class W203 models. A complete fuel rail with injectors ensures correct fuel delivery, stable engine operation, and proper compatibility with the factory engine control unit.
Specifications and technical data
- SKU: A2710703595-2
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2710703595
- Substitutable numbers: A2710703595, A 271 070 35 95
- Fuel type: Petrol
- Category: Fuel Injectors
Purpose and Function in the Fuel Supply System
The fuel rail with injectors in an M271 petrol engine is responsible for the precise distribution of fuel to individual cylinders. A correctly selected component from this group allows for maintaining:
- stable fuel pressure throughout the entire rail, which translates to smooth engine operation,
- accurate petrol dosing by each injector, in accordance with the control unit's map,
- a correct fuel-air mixture, crucial for performance and fuel consumption.
For M271 units, the proper fuel rail is particularly important for maintaining smooth running, reducing vibrations, and ensuring proper throttle response across the entire RPM range.
Application in M271 Petrol Engines
The presented component belongs to the category of injector nozzles and is designed for petrol fuel supply systems. The design of the fuel rail and the characteristics of the injectors are adapted to the specifics of the M271 engine, including:
- operating pressures typical for petrol injection systems in this engine model,
- injector opening times required by the Mercedes control unit,
- fuel spray pattern geometry in the combustion chamber, which affects combustion and exhaust emissions.
Thanks to this, the fuel rail with injectors works with the engine's factory equipment without the need for installation or software modifications.
Benefits of Using an Original Fuel Rail
Choosing an original fuel rail with injectors for a Mercedes W203 with an M271 engine offers a number of practical benefits:
- Mounting Compatibility – factory mounting points and connections are preserved, facilitating installation in place of the old component.
- Electronic Consistency – injector operating parameters are compliant with the engine control unit's requirements, reducing the risk of errors and limp-home mode.
- Stable Petrol Operation – proper fuel atomization promotes smooth operation at idle and under load.
- Improved Engine Smoothness – correct fuel dosing reduces jerking, misfires, and power loss.
Component Condition and Installation Aspects
The offered fuel rail with injectors is a used part, sourced from disassembly. Such components are often chosen as an economical solution for fuel system repairs, especially when maintaining the original manufacturer's specifications is important.
Before installation, it is recommended to:
- check the system for leaks after installing the fuel rail in the vehicle,
- verify engine operating parameters (injection corrections, control unit errors),
- inspect the condition of seals at the connections of the fuel rail and injectors to the intake manifold.
Mercedes Injector Nozzles – Selection and Diagnostics
When experiencing problems with petrol engine operation – such as uneven idling, increased fuel consumption, or power loss – one of the key components to check is the injector nozzles. It is worth noting that the symptoms of injector damage in petrol engines can be similar to those in diesel units. Therefore, the guide material diesel injector faults – symptoms, consequences, and diagnostics may be helpful, allowing for a better understanding of the logic behind diagnosing injection systems.
Other Mercedes Injector Nozzles
If you are looking for other Mercedes injector nozzles compatible with different models or engine versions, check out our dedicated category: Mercedes injector nozzles. This will allow you to easily compare available configurations and select the appropriate component for your specific engine number and vehicle version.
