Mercedes W207 C207 E350 BlueTEC Complete Engine 642.838 642838 252HP WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mercedes W207 C207 E350 BlueTEC Complete Engine 642.838 642838 252HP is a complete powertrain unit from the OM642 family, designed for E-Class coupe and cabriolet models. This modern, six-cylinder V6 diesel engine combines high refinement with fuel efficiency, providing a solid foundation for professional repair or engine replacement in your Mercedes. Thanks to the completeness of the powertrain, it speeds up the service process and makes it easier to maintain the factory operating parameters of the system.

Specifications and technical data

• SKU: A6420103709-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420103709
• Substitutable numbers: A6420103709, A 642 010 37 09, A6420109301, A 642 010 93 01, A 642 010 25 46, A6420102546
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: 642838
• Mileage: 69 000

Technical characteristics of the powertrain

The presented engine belongs to the Engines category and is a V6 diesel construction, which ensures balanced torque development across the entire rev range. The use of modern high-pressure diesel fuel injection technology translates into efficient acceleration, stable idling, and favorable fuel consumption in real-world driving conditions.

The unit code allows for unambiguous identification of the construction family, and the low mileage for this class of engine means a limited degree of wear on mechanical components and accessories. It is a good base both for installation in place of a damaged engine and for further, conscious operation in Mercedes E-Class W207/C207 generation vehicles.

Application in Mercedes W207 C207 E350 BlueTEC

The engine was designed for E350 BlueTEC models in coupe and cabriolet body styles, where a combination of dynamic acceleration and long-distance driving comfort is essential. The V6 unit provides smooth power delivery, and the configuration of the injection and turbocharging system is optimized for operation with the automatic transmissions used in these versions.

By maintaining the factory architecture of the powertrain, it is possible to restore the vehicle's original performance parameters without the need for structural modifications. This is particularly important in the case of cars equipped with extensive electronic systems, where the compatibility of the powertrain with other components is crucial for reliability.

Benefits of choosing a complete engine

Choosing a complete engine for the Mercedes E350 BlueTEC allows you to reduce vehicle downtime in the workshop and minimize the risk of compatibility issues with individual components. The OM642 family unit is well-known in the service environment, which facilitates diagnostics, maintenance, and any further operational work.

The main advantages of this unit include:

• proven six-cylinder construction with high refinement,
• good availability of service and maintenance parts,
• the ability to maintain factory performance and driving characteristics,
• a reasonable ratio of purchase cost to potential operational mileage.

For the user, this means stable operation of the powertrain, predictable service costs, and the possibility of continued vehicle use based on the manufacturer's original technical solutions.

Condition, origin, and identification

The engine is a used item, which in practice means that it has already undergone a certain cycle of operation but is still suitable for further use after proper installation and standard service maintenance. Information about the origin, mileage, and compatibility with a specific vehicle equipment version can be verified based on the identification data available in the technical specifications section.

The presence of the OEM part number and interchangeable numbers makes it easier to match the unit to a specific car, and the SKU designation allows for quick identification of the product in the sales system. Thanks to this, both the workshop and the individual customer can efficiently confirm compatibility before installation.

Technical support and additional materials

For users interested in in-depth knowledge about the durability and typical problems of modern diesel units, it is worth reading material describing the risks associated with the operation of popular engines in other brands, such as the guide on faulty BMW E90 engines and costly powertrain failures. This allows for a better understanding of the importance of proper service maintenance and the quality of the parts used.

If you want to learn more about the characteristics of the OM642 family, typical symptoms of accessory wear, and the possibilities of restoring full efficiency through the regeneration of key components, the detailed article on the "second life" of the Mercedes OM642 3.0 V6 CDI engine, which describes, among other things, the impact of injectors and the turbocharger on refinement and performance, will be helpful.

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 blocks, cylinder heads, or complete powertrain units, check the available parts in the Mercedes Engines category.