The Mercedes W204 M272 Fuel Rail is a component of the gasoline fuel system, designed for M272 series engines in W204 C-Class models. It is responsible for the stable distribution of fuel to the injectors, which is crucial for the engine's smooth operation, performance, and fuel consumption.
Specifications and technical data
- SKU: A2720700995
- Mark: Mercedes (Genuine OE)
- Condition: Used
- OEM Part Number: A2720700995
- Substitutable numbers: A2720700995, A 272 070 09 95
- Fuel type: Petrol
- Category: Fuel Injectors
Purpose and Function in the Fuel System
The fuel rail for the M272 engine operating on gasoline acts as a fuel manifold, ensuring uniform supply to all cylinders. A correctly selected fuel rail helps maintain proper system pressure, which translates to:
- stable engine operation across the entire RPM range,
- precise fuel delivery by the injectors,
- reduced power loss resulting from insufficient fuel supply,
- more predictable throttle response in daily use.
For Mercedes gasoline engines, the correct selection of fuel injection system components directly impacts engine durability and the proper functioning of control systems.
Technical Characteristics and Compatibility
The Mercedes W204 M272 Fuel Rail belongs to the category of injector nozzles, working directly with gasoline injectors and engine accessories. The design of the fuel rail is adapted to the specifics of M272 units, which means:
- geometry matched to the cylinder head and intake manifold in the M272 engine,
- adapted for operation with gasoline at typical pressure ranges for this type of unit,
- retention of factory mounting points and connections, facilitating installation.
Proper compatibility with the engine control system allows for maintaining operating parameters close to factory settings, without the need for intervention in the control unit's software.
Component Condition and Service Application
The offered fuel rail is a used component, making it an attractive solution for repairs and upgrades where cost-effectiveness relative to vehicle value is important. This type of part is particularly suitable in situations where:
- the original fuel rail has suffered mechanical damage (e.g., cracks, leaks),
- there are problems with uniform cylinder fueling and the fuel distribution element needs replacement,
- a comprehensive repair of the fuel injection system is being carried out on an M272 gasoline engine.
Using an original fuel rail from the same design family helps reduce the risk of fitting issues and ensures consistency with other system components.
Benefits of Using an Original Fuel Rail
Choosing a fuel rail dedicated to the Mercedes W204 with an M272 engine offers a range of practical service and operational benefits:
- maintaining factory operating parameters of the gasoline fuel injection system,
- reducing the risk of leaks resulting from improper fitment of aftermarket parts,
- easier diagnostics of potential fuel system faults due to compliance with Mercedes service documentation,
- compatibility with original injectors and engine accessories.
This solution is particularly recommended for vehicles where maintaining a configuration close to factory settings is a priority, without experimenting with unproven aftermarket parts.
Related Mercedes Injector Nozzles and Technical Materials
If you are looking for other Mercedes injector nozzles matched to specific models and engine units, check out our dedicated category: Mercedes injector nozzles. There you will find a wide selection of fuel injection system components for various engine series from this brand.
Although the described element pertains to a gasoline engine, many principles of fuel injection system diagnostics are common across different unit types. It is worth familiarizing yourself with the material discussing the symptoms and consequences of neglecting the fuel system: diesel injector faults – how to recognize them and what are the consequences of neglecting them. The article helps to better understand the importance of functional injectors and fuel rails for engine longevity.
