Mercedes-Benz W169 A180 W245 B180 CDI OM640 640940 Bare Engine 640.940 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-Benz W169 A180 W245 B180 CDI OM640 640940 Bare Engine is a complete, used powertrain from the Mercedes diesel engine family, designed for A-Class and B-Class models. Thanks to its proven four-cylinder design and modern diesel fuel system, the engine ensures stable operation, good flexibility, and economical fuel consumption. This is a solution for users looking for a technically compatible replacement for a factory CDI engine.

Specifications and technical data

• SKU: A6400101144
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6400101144
• Substitutable numbers: A6400101144, A 6400101144, A 640 010 11 44, A6400101102, A 640 010 11 02, A6400105744, A 640 010 57 44, A6400105202, A 640 010 52 02
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 66 000

Purpose and compatibility

The offered engine belongs to the Engines category and has been designed for installation in Mercedes vehicles from the W169 A180 CDI and W245 B180 CDI series. The unit comes from the family of four-cylinder diesel engines widely used in compact Mercedes models, which facilitates selection based on the specific body version and production year.

Due to the use of an injection system and accessories typical for this generation, the engine works well with the vehicle's factory electronics, maintaining original performance characteristics. This is particularly important when replacing the unit in cars equipped with extensive safety and comfort systems.

Construction and operating parameters

The CDI engine used in this model is a four-cylinder inline construction, powered by diesel fuel. This layout provides a favorable compromise between refinement and durability, and also enables efficient use of torque in typical urban and extra-urban conditions.

The unit has a mileage documented in the technical specification, which allows for a realistic assessment of its operational wear. The CDI diesel construction is known for its good resistance to long-term operation with proper maintenance, which is why a properly selected used engine can be a cost-effective alternative to rebuilding an old unit.

Practical application and installation benefits

Replacing the powertrain with the presented engine is particularly beneficial in situations where the existing motor has suffered a major mechanical failure or requires a costly overhaul. Using a complete, used engine allows for reduced vehicle downtime and lower labor costs associated with dismantling the old unit.

Key benefits include, among others:

• maintaining the factory engine performance characteristics in A180 CDI and B180 CDI models,
• the possibility of using the existing electrical installation and vehicle accessories (after verifying compatibility),
• an attractive ratio of purchase cost to the potential costs of a general overhaul of an old unit,
• reduced repair time thanks to the installation of a complete powertrain.

Condition, origin, and replacement numbers

The engine is offered as a used item, which means it comes from vehicle dismantling and has real operational mileage. Both the OEM part number and interchangeable numbers are available in the technical specification, which facilitates precise verification of compatibility with a specific car version. This allows you to consciously choose a unit for your Mercedes, minimizing the risk of incompatibility.

Before purchasing, it is recommended to compare the part number and reference numbers with the vehicle data, as well as consult a mechanic or a service center specializing in the Mercedes brand. This approach allows you to fully utilize the potential of this unit and ensure trouble-free installation.

Expanding knowledge and choosing the right engine

When choosing a used engine, it is worth knowing the typical design problems of individual power units to consciously assess the profitability of the investment. A good point of reference can be the analysis of failure rates of other popular models – for example, in an article about BMW 3 Series units, you will find practical tips on how to approach buying a used engine and what to look for during inspection. More information can be found in the material: Faulty BMW E90 engines – a practical guide to problematic units.

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