Mercedes W204 W212 Exhaust Manifold Left N/S M272 Petrol Engine A2721402309

Mercedes W204 W212 Exhaust Manifold Left N/S M272 Petrol Engine is a factory exhaust system component designed for M272 petrol-powered engines. The original manifold design ensures proper exhaust gas discharge from the left side of the engine, which translates into stable engine operation and correct power characteristics. This solution is dedicated to users who want to maintain consistency with factory specifications and ensure proper exhaust system performance parameters.

Specifications and technical data

• SKU: A2721402309
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721402309
• Substitutable numbers: A2721402309, A 272 140 23 09
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Manifolds & Headers

Purpose and compatibility with the M272 engine

The presented exhaust manifold has been designed to work with the M272 petrol engine used in Mercedes W204 and W212 class models. Its placement on the left side of the engine allows for precise fitting to the factory channel layout in the cylinder head and subsequent exhaust components. As a result, the correct exhaust flow geometry is maintained, which reduces the risk of improper cylinder filling and supports stable engine performance.

Selecting an original manifold for a specific engine version is crucial for ensuring tightness, compatibility with accessories, and proper interaction with sensors and other exhaust system components. Using an OEM part allows you to maintain factory parameters without the need for structural modifications.

Technical and functional characteristics

The exhaust manifold from this series is made of materials resistant to high temperatures and variable thermal loads, typical for V6 petrol engines. The channel design is optimized for uniform exhaust gas discharge from individual cylinders on the left side of the engine, which helps maintain the appropriate backpressure in the system.

The main advantages of this solution include:

• factory fitment for the left side of the M272 engine cylinder head,
• preservation of the stock exhaust flow characteristics,
• compatibility with the rest of the exhaust system in W204 and W212 models,
• possibility of installation in place of a worn or damaged manifold without interfering with the vehicle's structure.

This approach facilitates service, reduces repair time, and limits the risk of problems related to leaks or improper exhaust routing.

Condition, service application, and benefits of installation

The offered exhaust manifold is a used part, which in practice means an attractive compromise between repair costs and maintaining the original technical specifications. Replacing a worn or cracked manifold with a functional OEM part allows you to:

• limit noise and unwanted sounds resulting from leaks,
• reduce the risk of exhaust gases entering the engine bay,
• maintain correct sensor readings in the exhaust system,
• prevent power loss and unstable engine operation.

For workshops and private users, this means the possibility of performing an effective repair without the need to use replacements with uncertain fitment. The original exhaust manifold is particularly recommended where installation predictability and compliance with service documentation are important.

Technical support and further information on the exhaust system

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 manifold sections, connectors, or mounting elements, check the available parts in the Mercedes Exhaust Manifolds category.

For users interested in the broader context of how the exhaust system works and the selection of used parts, we have prepared a guide. In the article, we discuss, among other things, the impact of manifolds on engine performance, the differences between stock and sports solutions, and practical tips on purchasing parts from the secondary market – details can be found in the text Performance exhaust system: used manifolds and sports catalytic converters on the road.

Summary

Mercedes W204 W212 Exhaust Manifold Left N/S M272 Petrol Engine is a practical solution for drivers and workshops that want to restore the proper operation of the exhaust system while maintaining factory specifications. The original design, dedicated placement on the left side of the engine, and suitability for M272 petrol engines make it a reasonable choice for repairs and maintenance of the exhaust system in Mercedes W204 and W212 class vehicles.