Mercedes W203 M272 Petrol Intake Hose Air Duct Pipe Tube Left N/S A2720941511

The Left Air Intake Hose for Mercedes W203 with M272 Petrol Engine is an original air supply system component designed for precise air flow guidance to the intake manifold. Thanks to its factory geometry and fit for the W203 body, it ensures stable engine operating conditions and proper positioning in the engine bay on the left side. This solution is dedicated to petrol engines, helping to maintain correct flow characteristics and reduce the risk of intake system leaks.

Specifications and technical data

• SKU: A2720900782-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720900782
• Substitutable numbers: A2720900782, A 272 090 07 82, A2720941511, A 272 094 15 11, A2720940711, A 272 094 07 11
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and Function in the Intake System

The presented left air intake hose has been designed specifically for Mercedes C-Class W203 models with the M272 petrol engine. As a component from the Hoses, Tubes, and Pipes group, it is responsible for directing air from the filter housing towards the intake manifold, maintaining the correct channel diameter and shape. A properly selected and sealed hose reduces pressure drops, minimizes turbulence, and supports uniform cylinder filling.

Its placement on the left side of the vehicle is important both for routing the hose relative to other components in the engine bay and for compatibility with factory mounting points. Correct fitment for the specific M272 engine version helps avoid material stress, rubbing against other parts, and potential leaks that could affect the mass airflow sensor and mixture control.

Construction, Fitment, and Installation

The original design of the intake hose for the M272 unit accounts for the specific routing of the air channel within the W203 engine bay, with appropriate bends, diameter, and mounting points. This ensures an organized installation process, without the need for modifications or the use of additional clamps beyond factory solutions. Maintaining the correct stiffness and flexibility of the material translates to resistance against vibrations and temperature changes typical of petrol engine operation.

This part, as a used OE Mercedes component, is intended for direct replacement of a damaged or leaking left-side hose. In practice, this means the ability to restore correct air flow in the intake system without interfering with other installation components. Factory fitment for the W203 body and M272 engine simplifies installation and reduces service time.

Benefits of Using an Original Intake Hose

Using the correct left-side intake hose in the M272 petrol engine helps maintain stable engine operating parameters. A sealed and properly shaped air channel supports:

• correct operation of the mass air flow measurement system,
• uniform cylinder filling,
• maintenance of predictable torque characteristics,
• reduction of risks associated with intake leaks.

For users who operate their Mercedes consciously, choosing an original intake hose from this group is a sensible service solution – especially in case of cracks, abrasions, or deformation of the old component. Consistency with the factory intake system design promotes engine running culture and predictable responses to load.

Application in AWD Vehicles and Service Knowledge

In Mercedes W203 models equipped with single or multi-axle drive, a properly functioning intake system remains a crucial element for overall drivetrain efficiency. For vehicles with advanced drivetrain systems, it is advisable to combine proper engine maintenance with attention to other components. For drivers interested in a broader perspective on the design and servicing of premium car drivetrains, the article: xDrive, 4Matic, quattro or 4Motion – comparison of AWD drives from BMW, Mercedes, Audi and VW may be useful.

Expanding Mercedes Intake System Service

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