Mercedes W204 M274 Petrol Engine Fuel Line Pipe Hose A2740705200

The Mercedes W204 M274 Gasoline Fuel Line Hose is an original part from the Lines, Hoses, and Tubes group, designed for the gasoline engine fuel system in W204 models with the M274 unit. This used OEM component ensures proper fuel delivery, stable system pressure, and safe engine operation, serving as a functional service solution for Mercedes vehicles.

Specifications and technical data

• SKU: A2740705200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2740705200
• Substitutable numbers: A2740705200, A 274 070 52 00
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The fuel line in this version is responsible for the controlled transport of gasoline between the components of the fuel system in the M274 engine. Its design, adapted to the W204 engine bay architecture, allows for correct routing of the fuel line, minimizing the risk of abrasion, leaks, and improper positioning relative to other components.

The part has been engineered to operate in the high-temperature and variable-pressure environment typical of modern gasoline engines. This allows the hose to maintain appropriate flexibility while retaining the required geometric rigidity, which is crucial for the stable operation of the injection system.

Benefits of Using an Original Fuel Line

Using an original fuel line in a Mercedes W204 with an M274 engine offers several practical service benefits:

• secure fit to factory mounting points in the engine bay,
• maintenance of correct fuel line routing geometry,
• reduced risk of leaks compared to imprecisely shaped aftermarket alternatives,
• compatibility with other gasoline fuel system components.

For workshops and owners, this translates to efficient installation, fewer potential adjustments, and engine operating parameters close to factory specifications.

Component Condition and Service Application

The fuel line is offered as a used part, making it an attractive solution for routine repairs and budget-conscious fuel system overhauls. This type of component is particularly useful in situations where the existing line has suffered mechanical damage, deformation, or shows signs of material wear.

Replacing the fuel line in an M274 gasoline engine is recommended, among other things, for:

• detected leaks or fuel odor in the engine bay,
• damage resulting from a collision or previous improper installation,
• upgrades or servicing of the fuel system in higher-mileage vehicles.

Integration with the Gasoline Engine Fuel System

Due to its specific application for the M274 gasoline engine, the hose is compatible with factory-fitted injection system and engine accessories. The appropriate internal and external diameters, as well as matching connection ends, allow for correct integration with other components without the need for installation modifications.

This solution helps maintain stable fuel flow parameters, which directly impacts the engine's smooth operation, throttle response, and uniform cylinder fueling across the entire load range.

Expanding Repair Scope – Mercedes Lines, Hoses, and Tubes

If you are planning a comprehensive engine area repair or upgrade for your Mercedes and require other parts from the same group, such as vacuum lines, coolant hoses, or fuel pipes, check the available parts in the Mercedes Lines, Hoses, and Tubes category.

Practical Service and Operational Tips

When installing the fuel line in a Mercedes W204 with an M274 engine, pay attention to:

• thorough cleaning of sockets and connectors before installation,
• checking the condition of seals at connection points,
• correct routing of the line away from hot components (manifold, turbocharger, heat shields),
• checking the system for leaks after the initial engine start.

For owners interested in optimizing vehicle maintenance costs and selecting appropriate replacement parts for mechanical and body repairs, a helpful guide article on economical Ford operation and repair savings can provide universal insights into service budget planning, also applicable to other brands.