Mercedes W176 W246 180 CDI Complete Engine 651.901 651901 109HP 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 W176 W246 180 CDI Complete Engine 651.901 651901 109HP 99k, WARRANTY is a factory powertrain from the Mercedes diesel engine family, designed for A-Class and B-Class models. This is a solution for users looking for a proven, complete diesel engine with a modern design and optimized operating culture. The unit belongs to a popular series, which facilitates servicing and the selection of accessories.

Specifications and technical data

• SKU: A6510106110-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510106110
• Substitutable numbers: A6510106110, A 651 010 61 10, A6510107216, A 651 010 72 16, A6510106018, A 651 010 60 18
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Engine code: 651901
• Mileage: 99 000

Technical characteristics of the powertrain

The presented engine belongs to the Engines category and represents a modern family of Mercedes diesel units. The use of diesel fuel combined with a four-cylinder architecture ensures a favorable compromise between dynamics and operating economy. The engine code allows for clear identification of the design version, which is important when selecting accessories, the ECU, and fuel system components.

The four-cylinder configuration promotes smooth operation and reduces vibrations, while maintaining compact dimensions for the powertrain. As a result, the unit fits well into the engine bay of W176 and W246 models, maintaining proper service access to key components.

Application in Mercedes W176 / W246 180 CDI

The engine was designed for use in Mercedes A-Class and B-Class vehicles in the 180 CDI version, where stable torque characteristics and predictable behavior in daily driving are essential. The unit performs well in both city traffic and on the highway, offering flexibility at low and medium RPMs.

Thanks to its factory fitment for the W176 and W246 platform, installation is straightforward – mounting points, geometry, and connection layouts are consistent with the manufacturer's original specifications. This reduces the risk of compatibility issues and facilitates workshop work when replacing the complete powertrain.

Benefits of choosing a complete used engine

Choosing a complete, used engine from the 180 CDI family is a solution that allows for significant repair cost savings compared to rebuilding or purchasing a new unit. The user receives a powertrain with known origin and documented mileage, which makes it easier to assess the potential for further operation.

The main advantages of such a solution include:

• the ability to quickly restore vehicle functionality without a long-term rebuild of the old engine,
• maintaining the original operating characteristics of the Mercedes diesel unit,
• easier selection of accessories and service parts thanks to the clear engine series designation,
• a favorable cost-to-durability ratio with proper maintenance.

If you want to better understand how to safely choose used powertrains and what selection procedures based on identification numbers are worth applying, check out our guide Why it is worth buying used gearboxes and engines – facts instead of myths.

Condition, mileage, and operational potential

The engine is offered as a used item, which means it has already been in operation in a vehicle but is still suitable for further use after proper installation and service maintenance. Information about the mileage allows the workshop and the car owner to realistically assess the plan for further operation, including any preventive measures such as changing fluids, filters, or checking accessories.

Before installation, a standard preparatory procedure is recommended: checking for leaks, verifying the external condition, replacing consumables, and adjusting the configuration to the specific vehicle. This approach increases the chance of trouble-free operation after installation in the car.

Selection and other Mercedes Engines

When selecting this unit for a specific Mercedes vehicle, it is crucial to compare the engine markings and vehicle parameters to ensure full compatibility with the electrical system, fuel injection, and control systems. In case of doubt, it is worth consulting a mechanic or a brand specialist who will verify the configuration compatibility.

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 powertrains, check the available parts in the Mercedes Engines category.