Mercedes W205 OM626 Trafic Vivaro 1.6 DCI Diesel Exhaust Manifold 140045202R

The Mercedes W205 OM626 Trafic Vivaro 1.6 DCI Exhaust Manifold is an original part from the Exhaust Manifolds group, designed for diesel engines, ensuring proper exhaust gas discharge and stable operating conditions for the power unit. A used OEM component is a sensible choice for professional repairs when you prioritize the factory geometry of the exhaust channels and predictable system behavior. By maintaining the manufacturer's design, the manifold provides a solid foundation for restoring the correct operation of the exhaust system in vehicles with a 1.6 Diesel engine.

Specifications and technical data

• SKU: A6261420001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6261420001
• Substitutable numbers: A6261420001, A 626 142 00 01
• Fuel type: Diesel
• Category: Manifolds & Headers

Purpose and Technical Characteristics

The presented exhaust manifold is a component of the exhaust system dedicated to Diesel power units, used, among others, in the Mercedes C-Class W205 generation with the OM626 engine, as well as in structurally related vehicles such as Trafic or Vivaro with a 1.6 DCI engine. Its function is to collect exhaust gases from individual cylinders and direct them towards the turbocharger or the further part of the exhaust system, while maintaining appropriate flow and resistance to high temperatures.

Thanks to its factory design, the manifold maintains the correct channel geometry, which promotes even cylinder loading, stable idle operation, and predictable torque characteristics. This is particularly important in modern diesel engines where the exhaust system interacts with the turbocharger, exhaust gas recirculation system, and sophisticated control electronics.

Benefits of Using an Original Exhaust Manifold

Using an original exhaust manifold in a diesel engine offers a range of practical operational benefits:

• maintaining factory exhaust flow and correct turbocharger operation,
• stable thermal conditions within the cylinder head and seals,
• reduced risk of leaks compared to random aftermarket replacements,
• better compatibility with the factory engine control unit software.

For workshops and private users, this translates to a more predictable repair outcome, reduced issues with repeated disassembly, and greater confidence that the exhaust system will operate within the parameters set by the manufacturer. In the case of diesel engines, where the exhaust system directly impacts performance and emissions, choosing such a component is particularly justified.

Condition, Fitment, and Practical Application

The offered exhaust manifold is a used part, intended for reinstallation after standard workshop verification. A used OEM component represents a compromise between cost and maintaining original manufacturing quality, which is especially important for thermally stressed exhaust system components. During installation, it is recommended to use new gaskets and check the flatness of the mating surface to the cylinder head to ensure sealing and prevent exhaust leaks.

Due to the specifics of modern diesel engines, the manifold should always be selected for the specific engine type and vehicle generation. In practice, this means comparing the shape, channel layout, and mounting points with the removed part, which helps avoid installation problems and ensures correct positioning of the rest of the exhaust system.

Exhaust System Expansion and Service for Mercedes

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 sections, or turbocharger-related components, check the available parts in the Mercedes Exhaust Manifolds category.

For users who want to better understand the impact of the manifold on the performance and operating characteristics of the power unit, we have prepared a guide discussing the selection and operation of used exhaust system components. More information can be found in the article Performance Exhaust Systems: Used Manifolds and Sport Catalytic Converters on the Road, where we discuss the practical aspects of using manifolds in premium vehicles.

Summary

The Mercedes W205 OM626 Trafic Vivaro 1.6 DCI Exhaust Manifold is a used, original exhaust system component for diesel engines, which allows for the restoration of proper exhaust flow and stable operating conditions for the power unit. Choosing a factory manifold from a dismantled vehicle is a technically justified solution for workshops and discerning users who expect compatibility with the engine design and a predictable service outcome without the need for experimentation with random aftermarket replacements.