Mercedes W204 C 320 350 CDI Complete Engine 642960 642.960 224HP 99k, 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 C 320 350 CDI Complete Engine 642960 642.960 224HP 99k, WARRANTY is a complete diesel unit from the V6 family, designed for C-Class models with higher-output CDI variants. This is a solution for users who expect consistent power characteristics, high operating refinement, and the possibility of a direct engine replacement without complex modifications. Thanks to its factory configuration, the unit is suitable for both daily use and more demanding conditions.

Specifications and technical data

• SKU: A6420109247-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420109247
• Substitutable numbers: A6420109247, A 642 010 92 47
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: 642960
• Mileage: 99 000

Technical characteristics of the power unit

The presented engine belongs to the Engines category and was designed as a V6 diesel unit for Mercedes C-Class W204 generation vehicles in 320 CDI and 350 CDI versions. The six-cylinder configuration ensures smooth torque delivery, good flexibility across the entire rev range, and stable operation under higher loads.

The diesel unit was constructed to combine reasonable fuel consumption with a clear power reserve, which is particularly important in heavier body configurations or during frequent highway driving. The fuel injection system and V6 architecture promote smooth acceleration and reduced cabin vibration.

Application and compatibility

The complete engine is dedicated to Mercedes C-Class W204 models in 320 CDI and 350 CDI variants, where a unit with a power output of approximately 224 HP is required. This type of configuration is often chosen as a replacement in the event of severe damage to the existing engine, such as mechanical failures, overheating, or damage to the crankshaft-piston system.

When selecting a unit, it is crucial to match the engine code and accessory parameters to the specific vehicle version. In practice, this means the possibility of using the existing electrical installation, engine control unit, and drivetrain components, which limits the scope of additional adaptation work.

Benefits of installing a complete engine

Choosing a complete engine for the Mercedes W204 C 320 350 CDI allows for an organized and predictable vehicle repair. Instead of extensive regeneration of the existing unit, a ready-to-install powertrain can be used, which in many cases shortens the vehicle's downtime in the workshop.

• consistent power unit configuration prepared for installation in W204 models,
• preservation of factory engine operating characteristics,
• possibility to limit the scope of additional mechanical modifications,
• a suitable solution for severe damage to the old engine.

For workshops and users, this means a more predictable repair process and easier planning of further vehicle operation.

Condition, mileage, and verification before installation

The engine comes from a used vehicle, which is standard for original units removed from donor cars. The declared mileage allows for an assessment of wear in the context of the typical lifespan of this generation of Mercedes V6 diesel engines.

Before installation, it is recommended to perform basic service activities, such as checking for leaks, verifying the lubrication and cooling systems, and replacing consumables in accordance with the manufacturer's procedures. Such an approach increases operational safety and allows for better planning of future service intervals.

Drivetrain expansion and accessory selection

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 additional power units, blocks, or complete engine assemblies, check the available parts in the Mercedes Engines category.

For users who want to better understand the risks associated with choosing power units in premium cars, a guide regarding problematic engines in other brands may be helpful – it is worth reading the material: Troublesome BMW E90 engines: check what can ruin your budget!.

If you are interested in long-term operation and proper maintenance of accessories in Mercedes engines, you will find practical tips in the article: Reliability under the star sign – how to take care of engine accessories in popular Mercedes-Benz C and E-Class models?.