Mercedes-Benz W168 A160 E16 M166 166960 102HP Bare Engine 166.960 65k, 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 W168 A160 E16 M166 166960 102HP Bare Engine is an original powertrain unit from the M166 family, designed for the first-generation A-Class models. This used four-cylinder petrol engine provides a solid foundation for professional repair or engine replacement in your Mercedes, ensuring structural consistency with factory specifications and predictable operating parameters.

Specifications and technical data

• SKU: A1660100500
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1660100500
• Substitutable numbers: A1660100500, A 166 010 05 00, A1660102000, A 166 010 20 00
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the M166 engine

The presented engine belongs to the Engines category and represents the M166 family of units used in the Mercedes A-Class W168. The design, based on four cylinders in an inline configuration and petrol fuel supply, was engineered for stable performance in both urban and extra-urban driving, with an emphasis on smooth power delivery and predictable throttle response.

This type of petrol unit works well with factory control systems and Mercedes auxiliary equipment, which facilitates integration with the vehicle's existing electrical installation and drivetrain. As a result, the engine is suitable both for standard replacement of a damaged unit and for service applications in workshops specializing in the Mercedes brand.

Purpose and application in the Mercedes W168 A160

The Mercedes-Benz W168 A160 E16 M166 166960 102HP Bare Engine was designed as a component compatible with the "sandwich" body architecture characteristic of this model. Proper alignment of dimensions and mounting points allows for installation in place of the factory unit without the need for interference with the vehicle's load-bearing structure.

This powertrain unit is ideal for situations where the existing engine has suffered a major mechanical failure or requires an uneconomical repair. Replacing it with a complete used engine from the same family allows you to maintain compliance with factory operating parameters, which is essential for the proper functioning of control systems, diagnostics, and safety systems.

Condition, mileage, and benefits of installing a used engine

The offered unit is a used petrol engine with documented mileage, which makes it easier to assess its operational potential. This type of solution is often chosen by workshops and users looking for a compromise between repair costs and maintaining the manufacturer's original specifications.

By installing a used engine from the same series, you reduce the risk of compatibility issues with auxiliary equipment, wiring harnesses, and ECUs. This is a practical solution for post-accident repairs, mechanical damage, or engine overheating, where the priority is to restore vehicle functionality while maintaining reasonable service costs.

Why choose an M166 family engine for your Mercedes

M166 units are well-known in the service environment, which facilitates diagnostics, maintenance, and access to technical knowledge. Structural consistency with the original Mercedes design translates into predictable vehicle behavior after the engine replacement, without the need for software modifications or mechanical installations.

The four-cylinder petrol engine provides a balanced combination of performance and refinement, suitable for daily use. For workshops, this means easier repair planning, and for the user – the ability to restore the car's full functionality while maintaining the driving character typical of this generation of Mercedes A-Class.

Expanding repairs in the drivetrain area

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 powertrain units, check out the available parts in the Mercedes Engines category.

Technical support and engine selection

When planning an engine replacement, it is worth considering typical design and operational problems encountered in various makes and models. For comparison with other popular designs, you can use our guide on problematic units in the E90 series: Troublesome BMW E90 engines – a practical guide to problematic units. This will help you better understand what to look for when choosing a used engine and how to assess the risk of potential faults.