Mercedes W212 M272 Engine Fuel Injection Pipe Hose Line A2720700235

The Mercedes W212 M272 Fuel Injector Line is an original part from the Hoses, Pipes, and Tubes group, designed for the fuel system of the M272 gasoline engine in W212 E-Class models. It ensures a stable fuel supply to the injectors, contributing to smooth engine operation and correct combustion parameters.

Specifications and technical data

• SKU: A2720700235
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720700235
• Substitutable numbers: A2720700235, A 272 070 02 35
• Part type: Line
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

The fuel injector line in the M272 engine is responsible for precisely delivering fuel at the correct pressure to the fuel rail and injectors. The appropriate geometry and internal diameter of the line minimize pressure drops, which promotes stable operation of the injection system, accurate fuel delivery, and consistent engine performance across the full range of loads.

A correctly selected fuel line minimizes the risk of leaks, power loss, starting problems, and errors related to injection corrections. Using a part from the same design group as the original ensures compliance with the vehicle manufacturer's specifications.

Advantages of Using an Original Mercedes Line

Using a fuel line dedicated to the M272 engine in the W212 body ensures:

• proper fitment with the original fuel system and mounting points in the engine bay,
• maintenance of the correct line routing, minimizing vibrations and stress,
• compatibility with original quick-connect fittings and sealing elements,
• consistency with the operating pressure parameters intended for the M272 injection system.

Therefore, replacing a worn or damaged part with an original Mercedes fuel injector line helps restore proper fuel system operation without requiring modifications to the installation.

Installation and Operational Characteristics

The line should be installed according to the factory routing, maintaining proper positioning relative to hot and moving components in the engine bay. Correct installation minimizes the risk of abrasion, micro-cracks, and localized overheating, which is crucial for long-term, safe operation.

Before installation, it is recommended to inspect the connection sockets, the condition of the seals, and the cleanliness of the fuel system. Replacing the fuel injector line is particularly advisable if symptoms such as a fuel smell around the engine, visible signs of leaks, unstable idle speed, or problems starting a warm engine are present.

Product Condition and Service Application

This part is from the used parts group, allowing for an economical repair of the fuel system while maintaining the original manufacturer's specifications. This type of line is suitable for both standard replacement of a worn component and for more extensive service work on the M272 engine, such as cylinder head overhaul, injector replacement, or auxiliary equipment upgrades.

System Expansion – Selecting Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other parts from the same group, such as additional fuel lines, vacuum hoses, or fuel return pipes, check the available parts in the Mercedes Hoses, Pipes, and Tubes category.

For a better understanding of the relationships between the fuel system, engine control, and the overall vehicle operation, the advisory material describing the function of key components may be helpful – you can find it in the article Steering System and Power Steering – How They Work and What Fails?, which discusses practical aspects of diagnosing and operating automotive components.