Mercedes W169 W245 M266 Petrol Fuel Injector Rail Line A2660700595

The Mercedes W169 W245 M266 Gasoline Fuel Rail is an original fuel supply system component designed for M266 gasoline engines in A-Class and B-Class models. It ensures stable fuel supply to the injectors, which translates to smooth engine operation and proper response to load.

Specifications and technical data

• SKU: A2660700895
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660700895
• Substitutable numbers: A2660700895, A 266 070 08 95, A2660700595, A 266 070 05 95, A2660700395, A 266 070 03 95, BG
• Location on the vehicle: Front
• Fuel type: Petrol
• Category: Fuel Injectors

Purpose and Function of the Fuel Rail

The fuel rail for Mercedes W169 and W245 gasoline engines is responsible for distributing fuel to individual injectors in the M266 engine. It maintains the correct pressure in the front part of the engine bay, which is crucial for proper fuel metering and stable engine operation across the entire RPM range.

This component works in conjunction with the injection system, sensors, and engine control unit, enabling precise fuel dose control. This allows for maintaining a correct fuel-air mixture, which affects the smoothness of operation, performance, and fuel consumption.

Construction and Technical Specifications

The fuel rail is designed as an OEM component for gasoline engines, located in the front part of the engine bay. Its construction is intended for compatibility with factory injectors and accessories characteristic of the M266 unit.

• Dedicated Application – designed to fit the gasoline fuel supply system in specific W169 and W245 body versions.
• Fuel Pressure Stabilization – maintains appropriate parameters for injector supply under various load conditions.
• Interchangeable Part Number Compatibility – can be used to replace several factory references within the same parts family.

By preserving the factory geometry and connections, the fuel rail allows for installation without modifications to the fuel system, reducing the risk of leaks and operational issues.

Application in Gasoline Systems

In the M266 gasoline engine, the fuel rail plays a key role in precise cylinder fueling. A correctly selected component allows for:

• maintaining predictable engine behavior under changes in load and speed,
• stable idle operation and during acceleration,
• reducing the risk of misfires resulting from unstable fuel pressure,
• preserving factory combustion parameters, which contributes to meeting emission standards.

Choosing the right fuel rail is important for both standard operation and after repairs to the fuel system or cylinder head, where restoring the original engine operating parameters is required.

Condition, Origin, and Benefits of Use

The offered fuel rail comes from the Mercedes range and is a component from the injector nozzles category, guaranteeing compliance with the factory fuel system design. As a used part, it offers an economical solution while maintaining original construction and fit for the specific model.

• Original Origin – preserves factory mounting points and connections.
• Reasonable Repair Cost – an attractive alternative to new components while maintaining compatibility.
• OEM Number Verification Possible – easy to check compatibility with a specific vehicle configuration.

Before purchasing, it is advisable to compare the markings with your vehicle's data and the existing component to ensure full compatibility with the injection system of your specific vehicle.

Fuel System Selection and Diagnostics

When experiencing issues with the fuel supply system – such as uneven engine operation, power loss, or increased fuel consumption – proper diagnostics of the entire fuel path, not just the injectors, is essential. For diesel engines, detailed information on symptoms and consequences of neglect can be found in the article: diesel injector failures – symptoms, consequences, and diagnostics. Although it concerns diesel engines, many principles regarding the approach to fuel system diagnostics remain similar.

Mercedes Injector Nozzles – Other Products

If you are also looking for other components from the Mercedes injector nozzles category for your car, check out the Mercedes injector nozzles available in our store to select a complete fuel system solution.