Mercedes W169 A200 W245 B200 266960 Complete Engine 266.960 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 W169 A200 W245 B200 266960 Complete Engine is a complete powertrain unit from the M266 family, designed for A-Class and B-Class models. Thanks to its factory configuration and maintained completeness, it serves as a solid foundation for a professional engine replacement in Mercedes vehicles, ensuring consistency with the manufacturer's original solutions.

Specifications and technical data

• SKU: A2660100500-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2660100500
• Substitutable numbers: A2660100500, A 266 010 05 00
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Engine code: 266960
• Mileage: 59 000

Application and compatibility

The presented M266 series petrol engine was developed specifically for the compact Mercedes A-Class W169 and Mercedes B-Class W245 models in A200 and B200 versions. The unit's design is optimized for transverse mounting in the "sandwich floor" body structure characteristic of these generations, which facilitates integration with factory accessories, wiring harnesses, and the drivetrain.

The engine belongs to the Engines category, meaning it is a complete powertrain unit rather than just a bare block. This makes it a practical solution for major repairs, such as replacing a damaged unit following mechanical failure or overheating.

Construction and technical specifications

The powertrain is based on an inline four-cylinder layout, which provides a good balance between refinement and service simplicity. The number of cylinders and the engine architecture promote smooth power and torque delivery, while also facilitating access to key components during installation and subsequent maintenance.

The engine runs on petrol, which translates into smooth throttle response, predictable behavior across the entire rev range, and compatibility with Mercedes' factory fuel injection and ignition systems. The unit code allows for clear identification of the construction family and matching the engine to a specific vehicle configuration, which is essential when selecting the engine control unit (ECU), wiring, and accessories.

Mileage and operational condition

The engine comes from the secondary market and is offered as used with documented mileage. This level of usage is beneficial in terms of durability – the unit is already "broken in" while not being at the end of its life cycle, making it an attractive alternative to an expensive overhaul of an old engine.

Controlled mileage facilitates the assessment of further operational potential and the planning of any preventive maintenance (replacing seals, spark plugs, fluids) that should be performed before installation in the customer's vehicle.

Benefits of installing a complete engine

Choosing a complete M266 family engine for a Mercedes A-Class or B-Class significantly reduces repair time compared to a general overhaul of an old unit. The mechanic receives a coherent assembly that can be transferred to the vehicle while maintaining factory mounting geometry and compliance with the manufacturer's original solutions. This solution is particularly beneficial in cases of severe damage, such as seizing or a cracked block.

An additional advantage is the possibility of cost optimization – purchasing a complete, used engine often proves more cost-effective than the step-by-step regeneration of many components. A properly selected unit, consistent with the manufacturer's markings, minimizes the risk of electronic and accessory compatibility issues.

Selection, identification, and technical support

When selecting this powertrain unit, it is crucial to verify compatibility with the specific vehicle equipment version, model year, and transmission configuration. It is recommended to use the manufacturer's markings and data from the vehicle documents to ensure full mechanical and electronic compatibility. In case of doubt, it is worth consulting a workshop specializing in the Mercedes brand, which will confirm the correct selection in terms of the ECU, wiring, and accessories.

To better understand how to safely purchase used powertrains and transmissions, it is worth reading an expert guide describing facts and myths, VIN-based selection procedures, and cost analysis – you will find it in the article "Why it is worth buying used transmissions and engines – facts instead of myths". Additionally, practical tips regarding engine inspection before installation, a list of key verification points, and service recommendations are included in the guide "Buying a used engine: 5 things you must check before installation", which will help prepare the engine for operation in a new car.

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 complete powertrains, bare engines, or short blocks, check the available parts in the Mercedes Engines category.