Mercedes W203 CL203 C 200 CDI Bare Engine 646962 OM646 646.962 122HP WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

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

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Mercedes W203 CL203 C 200 CDI Bare Engine 646962 OM646 646.962 122HP WARRANTY is an original powertrain unit from the OM646 family, designed for C-Class diesel models. This is a solution for users looking for a proven, factory-spec diesel engine with stable operating characteristics and predictable performance parameters. By maintaining the manufacturer's specifications, the engine remains compatible with the vehicle's factory electronics and auxiliary equipment.

Specifications and technical data

• SKU: A6460101546
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6460101546
• Substitutable numbers: A6460101546, A 646 010 15 46, A6460109744, A 646 010 97 44
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 99 000

Technical characteristics of the OM646 unit

The presented engine belongs to the Engines category and represents a modern compression-ignition diesel design. The use of diesel fuel allows for favorable fuel consumption while maintaining adequate dynamics, which is particularly important in the daily operation of C-Class models.

The four-cylinder configuration promotes a balance between refinement and ease of maintenance. This type of layout is well-known to mechanics, which facilitates diagnostics, potential repairs, and subsequent routine maintenance. The OM646 unit is valued for its predictable behavior under load and stable operation across a wide range of engine speeds.

Application and fitment for Mercedes W203 / CL203 C 200 CDI

The engine was designed for Mercedes C-Class W203 and CL203 generation models in the C 200 CDI version, which means it retains factory mounting points and is compatible with the stock drivetrain and vehicle electrical system. As a result, installation is straightforward, without the need for structural modifications.

The unit is suitable for users who want to restore full vehicle performance after a failure of their previous engine or are planning a replacement for maintenance reasons. Using an original unit from the same OM646 family reduces the risk of compatibility issues with the engine control unit, accessories, and auxiliary systems.

Performance parameters and condition

The engine comes from the secondary market, which allows for optimizing repair costs compared to purchasing a brand-new unit. The mileage is typical for a vehicle of this class and allows for continued reliable operation with proper maintenance. This type of solution is often chosen by workshops specializing in the Mercedes brand that are looking for a reasonable compromise between price and functionality.

The four-cylinder diesel unit performs well in both city driving and on the highway, offering predictable performance and stable behavior at constant speeds. With proper operation and regular service, engines from the OM646 family are known for their long service life and resistance to the typical stresses of daily driving.

Benefits of choosing a used diesel engine

Purchasing a used diesel engine for a Mercedes C-Class is a cost-effective solution for drivers who want to reduce repair costs while maintaining the factory powertrain design. By choosing an original unit from the same family, you gain:

• compatibility with factory engine management and accessories,
• the possibility of efficient installation in a specialized workshop,
• more predictable operating parameters than in the case of replacements of uncertain origin.

If you want to better understand how to safely choose used powertrain units and what to look for when selecting by OEM or VIN number, it is worth reading the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses key procedures and practical examples.

Support for selection and powertrain upgrades

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 out the available parts in the Mercedes Engines category.

When making a decision to invest in a used engine, it is also worth comparing the general advantages and limitations of new versus secondary market parts. The guide Car parts – new or used? We compare costs, quality, and durability may be helpful, as it discusses the financial, quality, and availability aspects of components in an accessible way.