Mercedes W204 Exhaust Manifold Header Left N/S 3.0 V6 Petrol C280 A2721403509

Mercedes W204 Exhaust Manifold Header Left N/S 3.0 V6 Petrol C280 is an original exhaust system component designed for V6 petrol engines in the C280 model. This used manifold from this series ensures a factory-fit to the cylinder head, stable exhaust gas discharge, and the maintenance of the engine's stock performance parameters. It is a solution for drivers who want to restore the efficiency of the exhaust system in a technically correct manner without interfering with the engine's construction.

Specifications and technical data

• SKU: A2721403509
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2721403509
• Substitutable numbers: A2721403509, A 272 140 35 09
• Location on the vehicle: Left
• Fuel type: Petrol
• Part type: Exhaust Manifold
• Category: Manifolds & Headers

Purpose and exhaust system compatibility

The presented exhaust manifold is a component from the Exhaust manifolds group, mounted on the left side of the engine in Mercedes vehicles with the 3.0 V6 petrol engine in the C280 version. The manifold's design has been engineered for the specific cylinder layout and engine bay geometry, which allows for maintaining proper exhaust flow and correct backpressure in the system.

Thanks to its factory origin, the manifold works with the stock gasket, accessories, and the rest of the exhaust system, which reduces the risk of leaks and unwanted vibrations. This is particularly important in V6 engines, where even exhaust discharge from the left and right sides affects the engine's refinement and the stability of the air-fuel mixture parameters.

Technical and functional characteristics

The left exhaust manifold in this model is responsible for collecting exhaust gases from the corresponding cylinders and directing them further into the exhaust system. The shape of the channels and cross-sections have been selected to provide a balance between flow efficiency and component durability under high-temperature and dynamic load conditions.

Key functional features of this component include:

• factory fitment for the 3.0 V6 petrol engine in the Mercedes W204 C280,
• exhaust channel geometry designed for the specific model,
• possibility of installation in place of the original component without structural modifications,
• maintenance of the stock engine and exhaust system performance characteristics.

A manifold configured in this way allows for maintaining the appropriate temperature and exhaust flow velocity, which is significant for both the operation of the sensors and the overall efficiency of the engine.

Benefits of using an original used manifold

Choosing a used, original exhaust manifold for the Mercedes W204 C280 is a beneficial solution for drivers who expect compatibility with the factory system and predictable engine behavior. Using a component from the same model family reduces the risk of installation problems, improper fitment, or the need for additional modifications.

The most important advantages of such a solution include:

• maintenance of stock engine performance parameters without changes to the ECU software,
• reliable fitment to the cylinder head and subsequent exhaust system components,
• no need for adapters or mounting modifications,
• consistency with other exhaust system components in the given model.

As a result, the manifold is particularly recommended for repairs following mechanical damage, cracks, or excessive corrosion of the existing component, when the priority is to restore the vehicle's efficiency based on solutions consistent with the manufacturer's design.

Application in service and exhaust system upgrades

This type of manifold is suitable for both standard service repairs and more extensive work on the exhaust system, where maintaining the correct exhaust flow geometry on the left side of the engine is crucial. It can serve as a base for further modifications in the lower part of the system, while maintaining the factory connection point at the cylinder head level.

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 manifolds for other engine versions, connecting elements, or link pipes, check the available parts in the Mercedes Exhaust manifolds category.

Technical support and knowledge about the exhaust system

When selecting a used exhaust manifold for a Mercedes, it is worth paying attention to compatibility with the engine, the mounting side, and the fuel type. It is also good practice to assess the condition of the mating surfaces and mounting threads before installation to avoid leaks and problems with tightening the bolts.

If you want to better understand how to select used exhaust system components, how to assess their condition, and what to look out for during installation, use our guide: Performance exhaust system: used manifolds and sports catalytic converters on the road. This will make it easier for you to plan the repair or upgrade of the exhaust system in your car, minimizing the risk of unnecessary costs and installation errors.