Mercedes C204 Fuel Injection Line Injectors SET Left N/S M276.957 A2760703395

Mercedes C204 Fuel Injection Line Injectors SET Left N/S M276.957 is a complete, used fuel system assembly designed for V6 engines from the M276.957 family. Thanks to the original Mercedes design and the preservation of the factory geometry of the fuel rail and injectors, this set ensures stable engine performance and precise fuel delivery on the left side.

Specifications and technical data

• SKU: A2760703395
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2760703395
• Substitutable numbers: A2760703395, A 276 070 33 95, A2760701795, A 276 070 17 95, A2780700487, A 278 070 04 87, A2760780245, A 276 078 02 45
• Location on the vehicle: Left
• Part type: Fuel Rail (Ramp)
• Category: Additional Fuel Injection Parts

Purpose and function in the injection system

The presented fuel rail and injector set is a high-pressure system component responsible for the even distribution of fuel to the cylinders on the left side of the engine. Properly selected flow characteristics and the correct positioning of the supply ports allow for maintaining stable fuel pressure across the entire load range, which translates into smooth engine operation and correct throttle response.

The placement on the left side of the vehicle facilitates service and diagnostics – the mechanic has quick access to fuel connections and electrical injector connectors, which reduces the time required for maintenance work.

Original Mercedes construction and compatibility

The set comes from the range of original Mercedes components, which means it maintains factory manufacturing tolerances, proper fitment to the cylinder head, and compatibility with the factory M276.957 engine equipment. The original geometry of the injector seats and rail mounting points minimizes the risk of leaks and incorrect routing of fuel lines.

The presence of dedicated part numbers and interchangeable numbers facilitates the selection of the correct element for a specific engine configuration, which is particularly important when repairing modern gasoline engines with direct injection.

Benefits of using a complete fuel rail with injectors

Using a complete fuel rail and injector set for the left side allows, in many cases, to avoid time-consuming regeneration of individual components. In practice, this means:

• consistent performance parameters of all injectors within one side of the engine,
• reduced risk of fuel delivery discrepancies between cylinders,
• easier diagnostics – one assembly instead of many scattered components,
• better repeatability of results after installation and engine control unit adaptation.

For workshops specializing in the Mercedes brand, this solution shortens repair time and limits the number of potential failure points, which is significant for both warranty and post-warranty repairs.

Characteristics of the used component

As a used part, the fuel rail and injector set is an economical alternative to new components while maintaining the manufacturer's original specifications. This type of solution is often chosen for repairs of several-year-old vehicles, where it is crucial to combine proper injection system operation with a reasonable service budget.

During installation, standard workshop procedures are recommended: checking fuel connection tightness, replacing seals according to manufacturer recommendations, and performing parameter adaptation in the engine control unit if required by the specific vehicle configuration.

Repair expansion and selection of related components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional rails, injectors, or supply lines, check the available parts in the Other Mercedes injection system parts category.

For larger fuel system repairs, it is also worth paying attention to the impact of using original, used components on the vehicle's subsequent value – this issue is discussed in more detail in the article Original used parts and resale value – how not to lose money?, which helps in choosing a service strategy for future car resale.

If the injection system repair is part of broader post-accident work, tips on selecting used body components and service procedures may also be useful – you will find them in the guide Bodywork and chassis – post-accident repairs using dismantled parts, which organizes the most important principles for the safe use of dismantled parts.