Engine Exhaust Manifold Mercedes W203 W204 W209 M272 Petrol Left N/S Manifold

The Mercedes W203 M272 Benzine Exhaust Manifold Left is an original part from the Exhaust Manifolds group, designed for M272 gasoline engines in the W203 body style. This used manifold ensures factory geometry of the channels, proper exhaust gas discharge from the left side of the engine, and stable exhaust system operation under driving conditions.

Specifications and technical data

• SKU: A2721400109-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721400109
• Substitutable numbers: A2721400109, A 272 140 01 09, KD
• Location on the vehicle: Left
• Fuel type: Petrol
• Category: Manifolds & Headers

Intended Use and Exhaust System Fitment

The presented exhaust manifold is dedicated to M272 gasoline engines installed in the W203 model, on the left side. By maintaining the original design, it ensures the correct positioning of the pipes relative to the cylinder head, proper exhaust gas flow, and compatibility with the rest of the vehicle's exhaust system.

The part has been designed by the manufacturer to ensure uniform exhaust gas flow between cylinders, which contributes to stable engine operation, correct torque characteristics, and reduced unwanted vibrations and thermal stresses in the engine bay.

Construction and Technical Properties

The manifold is made of a high-temperature-resistant alloy, adapted for long-term operation under high thermal loads typical for gasoline engines. The design of the channels and mounting flanges has been developed to ensure a tight seal with the cylinder head and stable mounting in the vehicle, which reduces the risk of leaks and unwanted noises.

The original geometry of the manifold supports the correct discharge of exhaust gases from the left side of the M272 unit, which is important for both engine operation and downstream components, including catalytic converters and mufflers. This ensures the integrity of the entire exhaust path, and thermal loads are distributed as intended by the manufacturer.

Application in M272 Gasoline Engine

In M272 gasoline engines, the left-side exhaust manifold is responsible for collecting exhaust gases from the respective cylinders and directing them to the rest of the system. A correctly selected part influences:

• maintaining proper back pressure in the exhaust system,
• stable engine operation across the entire RPM range,
• limiting local overheating in the cylinder head and gasket area,
• maintaining factory exhaust emission parameters.

By using an original manifold from the same design group, the user is assured that the part will work with other exhaust system components without the need for modifications or adapter adjustments.

Condition, Verification, and Benefits of Installation

The offered exhaust manifold is a used part, allowing for an economical repair of the system while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial for vehicles used daily, where a reasonable service cost is important while maintaining adequate part quality.

Installing the original left-side manifold in the M272 engine allows for the restoration of proper exhaust system operation after mechanical damage, corrosion, or cracks in the previous part. A correctly selected manifold reduces the risk of exhaust leaks at the cylinder head, unwanted noises, and performance loss due to leaks.

Exhaust System Expansion and Technical Knowledge

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 manifolds, connecting pipes, or transition elements, check the available parts in the Mercedes Exhaust Manifolds category.

For users interested in a broader perspective on selecting used exhaust system components, including manifolds and performance parts, the article describing practical aspects of operation and selection of such parts will be helpful: Performance Exhaust System: Used Manifolds and Sport Catalysts on the Road.