Mercedes W204 Engine 651913 Complete C 200 CDI BlueEFFICIENCY 651.913 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 Engine 651913 Complete C 200 CDI BlueEFFICIENCY is a factory-spec power unit from the Mercedes diesel engine family, designed for the C-Class W204 generation models. This four-cylinder diesel engine provides efficient yet dynamic performance, serving as a solid foundation for professional repair or engine replacement in your vehicle. By maintaining the original design, the engine guarantees proper fitment with factory vehicle systems and consistency with electronics and auxiliary equipment.

Specifications and technical data

• SKU: A6510100345-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510100345
• Substitutable numbers: A6510100345, A 651 010 03 45, A6510106407, A 651 010 64 07
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the power unit

The presented engine belongs to the Engines category and represents the modern line of Mercedes diesel units. The use of four cylinders in an inline configuration promotes balanced operation and predictable torque characteristics, which translates into comfortable daily driving.

The unit was designed as a diesel engine, which means high thermal efficiency, favorable fuel consumption, and good flexibility across a wide rev range. As a result, the engine performs well in both city traffic and on the highway, enabling smooth acceleration and stable operation at higher speeds.

An additional advantage is the relatively low mileage, which, in the case of a diesel engine of this class, favors further long-term operation provided that proper maintenance is performed. This type of unit is often chosen as a solution for comprehensive powertrain repair in a Mercedes C-Class when rebuilding the existing engine is not cost-effective.

Purpose and compatibility with Mercedes W204

The engine has been configured for the Mercedes C-Class W204 model in the C 200 CDI version, ensuring high compatibility with factory mounts, the drivetrain, and the vehicle's electrical system. Consequently, installation is straightforward, without the need for structural modifications to the body or subframe.

The original Mercedes origin of the unit helps maintain full functionality of onboard systems, such as engine control units, safety systems, and driver assistance systems. In practice, this means that after proper installation and ECU adaptation, the engine can operate within factory-like parameters without unwanted error messages.

This solution is particularly recommended for users who want to restore their W204 to full powertrain efficiency while maintaining consistency with the original vehicle architecture and avoiding compromises typical of non-original replacements.

Condition, mileage, and operational potential

The engine is offered as a used component, which allows for an economical powertrain rebuild while maintaining the manufacturer's original specifications. The declared mileage indicates a relatively limited degree of wear compared to many other diesel units found on the secondary market.

In practice, this means that with proper installation, the use of appropriate operating fluids, and regular maintenance, the unit can provide a significant margin of durability. This type of engine is often chosen by workshops specializing in the Mercedes brand as a base for further, informed operation or potential future regeneration according to specific customer requirements.

Benefits of choosing an original Mercedes engine

Choosing a power unit dedicated to the Mercedes W204 C 200 CDI brings a number of practical benefits:

• preservation of factory engine performance characteristics and compatibility with vehicle electronics,
• reduction of risks related to fitting auxiliary equipment and mounts,
• possibility of utilizing existing service and diagnostic infrastructure,
• easier identification of spare parts and consumables.

For the user, this means a more predictable repair process and greater confidence that, after installation, the engine will work with the vehicle's other systems in accordance with the manufacturer's specifications. This is particularly important in the case of modern diesels, where the integration of mechanics and electronics is crucial for trouble-free operation.

Mercedes engines and an informed choice of power unit

When purchasing a used engine, it is worth paying attention to the real-world experiences of users with various diesel designs. For comparison with other brands and models, including popular units used in BMW, a guide describing typical problems with selected engines may be helpful. To better understand how the failure rate of a specific design affects operating costs, it is worth reading the article Troublesome BMW E90 engines – a practical guide to problematic units.

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 power units, check the available parts in the Mercedes Engines category.