Mercedes CLS C218 X218 350 CDI d Bare Engine 642853 642.853 95k, 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 CLS C218 X218 350 CDI d Bare Engine is a used, original V6 engine block designed for the Mercedes CLS C218/X218 generation with a diesel engine. The bare engine base provides a solid foundation for professional rebuilding or engine swaps, allowing for the reuse of existing accessories and optimizing repair costs. By maintaining the factory design of the diesel V6, this solution is attractive to both workshops and informed users.

Specifications and technical data

• SKU: A6420104807
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420104807
• Substitutable numbers: A6420104807, A 642 010 48 07, A6420104003, A 642 010 40 03
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: 642853
• Mileage: 95 000

Technical characteristics of the engine block

The presented engine block belongs to the Engines category and represents the Mercedes V6 compression-ignition engine family. The cylinder configuration ensures smooth operation, and the diesel design is engineered for high torque and stable performance over high mileages. As a bare engine block, the unit includes the core engine block, prepared for further assembly with accessories compatible with the specific vehicle version.

The engine runs on Diesel fuel, which in practice means favorable fuel consumption while maintaining adequate dynamics, especially in heavier CLS-class bodies. The six-cylinder layout promotes even load distribution, which is important for long-distance driving and highway conditions.

Application in Mercedes CLS C218 / X218 350 CDI d

The engine block is intended for Mercedes CLS C218 and X218 models in the 350 CDI d version, which allows for maintaining the factory performance characteristics of the powertrain. This type of solution is particularly beneficial for:

• accident repairs where the engine block has been damaged,
• regeneration of units with severe mechanical damage,
• engine swaps in fleet vehicles where time and installation predictability are key.

By maintaining the original engine architecture, it is possible to transfer accessories from the previous unit, which facilitates matching the specific vehicle equipment configuration.

Benefits of choosing a used engine block

Choosing a used engine block from the Mercedes V6 Diesel family allows for significant cost reduction compared to purchasing a complete new unit. At the same time, it remains possible to individually verify and potentially regenerate internal components according to the workshop's standards. This solution is particularly valued by services specializing in the Mercedes brand that want to combine control over the rebuilding process with a rational budget.

A used engine block is a good starting point for building a unit to specific requirements – from standard operation to more demanding working conditions. The ability to use existing accessories (injectors, turbocharger, auxiliary equipment – according to the vehicle configuration) allows for maintaining consistency with the car's electronics and installation, which reduces the risk of compatibility issues.

Selection by engine code and parameters

A key element in the selection process is the engine code, which uniquely identifies the given engine family. Based on this, the workshop can verify compatibility with a specific Mercedes CLS C218/X218 350 CDI d version, taking into account differences resulting from the production year or equipment variant. In practice, this means greater installation certainty and a reduced risk of needing mechanical modifications.

When planning a replacement, it is also worth considering the unit's mileage, which allows for estimating the potential for further operation and the scope of preparatory work (e.g., checking timing components, seals, cylinder wall condition). Such an approach facilitates repair budget planning and minimizes unexpected vehicle downtime.

Professional approach to used engines

For workshops and users who want to deepen their knowledge about the cost-effectiveness of purchasing used engines, an expert guide discussing facts and myths, selection procedures by VIN/OEM, and sample cost calculations will be useful – you can find it in the article Why it is worth buying used gearboxes and engines – facts instead of myths. It allows for better investment planning in a used engine block and consciously comparing it with alternative solutions.

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.