Mercedes-Benz W169 W245 200 CDI OM640 Complete Engine 640.941 640941 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-Benz W169 W245 200 CDI OM640 Complete Engine 640.941 640941 WARRANTY is an original power unit from the Engines category, designed for A-Class and B-Class models with diesel fuel systems. This used engine block ensures factory compatibility with the vehicle's installation while providing a cost-effective solution for professional powertrain repairs. By maintaining the manufacturer's design parameters, it serves as a solid foundation for further operation or a major overhaul.

Specifications and technical data

• SKU: A6400101202-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400101202
• Substitutable numbers: A6400101202, A 640 010 12 02, A6400106002, A 640 010 60 02, A6400102344, A 640 010 23 44
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 65250

Technical characteristics of the OM640 unit

The presented engine belongs to the family of Mercedes diesel units, designed for efficient diesel combustion and stable operation in everyday driving conditions. The four-cylinder construction promotes balanced operation, reduced vibration, and predictable behavior under load. The applied diesel fuel system allows for a favorable torque characteristic in the low and medium RPM range, which translates into smooth starting, flexible acceleration, and comfortable city and highway driving.

The OM640 engine in the 200 CDI version is a popular choice for workshops specializing in the Mercedes brand due to its proven design, good availability of service parts, and predictable behavior during long-term operation. The moderate mileage of the unit is an additional advantage when planning further use or preparing for preventive maintenance.

Application in Mercedes W169 and W245

The engine in question was developed for installation in Mercedes A-Class (W169) and B-Class (W245) models in the 200 CDI version. As such, it provides a direct solution for users and workshops looking for a power unit that is structurally matched to the factory mounts, cooling system, accessories, and electronics of these models. Using an original engine from the same family reduces the risk of compatibility issues that often arise when experimenting with unreliable replacements.

In practice, this means the ability to efficiently replace a damaged unit in vehicles used both for fleet and private purposes. For workshops specializing in the Mercedes brand, such an engine is a valuable base for carrying out post-accident repairs, repairs after mechanical failure, or powertrain upgrades in high-mileage vehicles.

Benefits of choosing a used Mercedes engine

Choosing a used engine from the OM640 family is a reasonable compromise between costs and maintaining the manufacturer's factory specifications. The four-cylinder diesel unit ensures predictable fuel consumption and stable operation in typical road conditions, which is important for both private and corporate users. A used engine block allows for a significant reduction in repair costs compared to purchasing a new unit, while maintaining the original Mercedes design.

An additional advantage is the possibility of further service support based on the manufacturer's standard procedures – the workshop has access to technical documentation, diagrams, and service parts dedicated to this engine series. This facilitates diagnostics, shortens repair times, and reduces the risk of unforeseen problems during operation after replacement.

Professional selection and verification by VIN/OEM

To minimize the risk of error when selecting a power unit, it is worth using the vehicle's VIN and the OEM numbers assigned to the specific engine configuration. This allows for verifying compatibility with the electrical installation, accessories, and ECU software in a given Mercedes vehicle. Proper matching is crucial for trouble-free engine startup after installation and correct interaction with the vehicle's existing electronics.

For users and workshops that want to deepen their knowledge about the cost-effectiveness of purchasing used power units, selection procedures by VIN/OEM, and real cost differences compared to new parts, an expert guide has been prepared: Why it is worth buying used gearboxes and engines – facts instead of myths. This is a practical source of information that helps in making informed purchasing decisions.

Expanding repairs within the powertrain

When replacing a power unit, it is worth considering a comprehensive approach to powertrain maintenance, including checking the gearbox, half-shafts, supports, and drivetrain components. Such an approach helps reduce the risk of further service downtime and better utilizes the potential of the newly installed engine. In case of problems with other powertrain elements, specialized material regarding drive axles and differentials, available in the article, may also be helpful: Humming differential? Find out why a used OEM drive axle is a better investment than an uncertain replacement.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as blocks, cylinder heads, or complete engines, check the available parts in the Mercedes Engines category.