Mercedes W204 C200 C220 C 200 220 CDI Complete Engine OM 646.811 646811 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 W204 C200 C220 C 200 220 CDI Complete Engine OM 646.811 646811 WARRANTY is a used diesel unit from the OM646 family, designed for C-Class W204 models with 2.2 CDI engines. It is a proven solution for users looking for a technically refined diesel engine with good operating culture and reasonable fuel consumption, which will restore the full performance of the drivetrain in a Mercedes vehicle.

Specifications and technical data

• SKU: A6460107044-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6460107044
• Substitutable numbers: A6460107044, A 646 010 70 44, A6460108898, A 646 010 88 98, A6460108398, A 646 010 83 98, A6460108498, A 646 010 84 98
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 99 000

Technical characteristics of the OM 646.811 unit

The OM 646.811 engine is a four-cylinder, inline diesel unit with common rail direct injection, used in the Mercedes C-Class W204 generation in 200 CDI and 220 CDI versions. The construction based on a cast-iron block and an aluminum head ensures good rigidity, and the turbocharging system allows for adequate flexibility across the entire rev range. The Diesel fuel type makes the engine perform well both in daily city driving and on the highway, offering a favorable compromise between dynamics and economy.

Application and compatibility

The offered engine belongs to the Engines category and is intended for installation in Mercedes C-Class W204 vehicles with 2.2 CDI units. The four-cylinder inline layout facilitates service and diagnostics, and the widespread use of the OM646 family in the Mercedes range translates into good availability of accessories and service support. The unit is suitable as a replacement for a damaged engine in cars originally equipped with the OM 646.811.

Condition, mileage, and benefits of installation

The engine is in used condition, with documented mileage, which allows for a realistic assessment of its operational wear. Mileage at a level typical for this generation of diesel units provides a solid base for further operation with proper maintenance. Installing such a unit is a cost-effective solution for users who want to avoid expensive major repairs while maintaining the original operating characteristics of the Mercedes drivetrain.

Why choose this diesel engine

Choosing a used OM 646.811 engine for a Mercedes W204 is primarily a saving compared to purchasing a brand-new unit, while maintaining structural compliance with the vehicle's original configuration. The four-cylinder diesel from this series is well-known by workshops, which facilitates installation and subsequent service. For many users, it is also crucial that OM646 units are considered structurally refined, provided that high-quality oil is used and regular maintenance is performed.

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, heads, or complete engine assemblies, check the available parts in the Mercedes Engines category.

Knowledge and comparison with other units

When choosing a used engine, it is worth knowing the typical problems of various diesel designs to consciously assess the profitability of the purchase and further operation. For comparison with other popular diesel units in the premium segment, including models from competing brands, material describing the critical points of drivetrains in a similar class of cars may be helpful, e.g., faulty BMW E90 engines and their typical failures. Such knowledge allows for a better appreciation of the advantages and specific operating characteristics of the OM 646.811 engine in the Mercedes W204.