Mini One F55 F56 F57 Complete Engine B38A12A Petrol B38 with 34k miles 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.

Mini One F55 F56 F57 Complete Engine B38A12A is an original powertrain from the B38 family, designed for modern Mini models with F55, F56, and F57 body styles. The three-cylinder petrol construction ensures efficient, dynamic acceleration and economical operation, while the complete nature of the engine facilitates quick replacement in the vehicle. This is a solution for users looking for a proven, factory-spec engine instead of costly regeneration or repair of their existing unit.

Specifications and technical data

• SKU: 0003071-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 0003071
• Substitutable numbers: 11000003071, 11002409855, 11002355449, 0003071, 2409855, 2355449, 11002455306, 2455306
• Fuel type: Petrol
• Number of cylinders: 3
• Category: Engines
• Mileage: 34000

Technical characteristics of the B38 unit

The B38 engine used in the Mini One F55, F56, and F57 is a modern, compact three-cylinder petrol unit designed for efficient combustion and reduced mechanical losses. The three-cylinder layout allows for weight and internal friction reduction while maintaining proper operating smoothness and flexibility within the typical urban and extra-urban RPM range.

The unit belongs to the BMW/Mini modular engine family, which means consistent design solutions, an optimized cylinder head and block layout, and favorable service conditions. As a result, the engine works well with the vehicle's factory electronics, safety systems, and transmissions used in the Mini One.

Application in Mini F55, F56, F57 models

The Mini One F55 F56 F57 Complete Engine B38A12A is intended for installation in Mini One models from the F-series, i.e., the F55 (five-door hatchback), F56 (three-door hatchback), and F57 (convertible) versions. Using the same family of units across different body variants makes it easier to select the right engine for replacement and allows for maintaining the original driving parameters and performance characteristics known from the factory configuration.

The B38 petrol unit performs well in both city driving and on the road, providing predictable throttle response and favorable fuel consumption with proper maintenance. This is particularly important when replacing an engine in cars used daily, where stability and performance repeatability are key.

Condition, mileage, and benefits of choosing a used engine

The offered engine comes from the Engines category and is a used component, which allows for significantly lower repair costs compared to purchasing a brand-new unit. The declared mileage allows for an assessment of the wear level in relation to the typical durability of B38 engines, which is important when planning the further operation of the vehicle.

Choosing a complete, used petrol engine for a Mini One is particularly beneficial when the existing unit has suffered a major mechanical failure or damage requiring costly rebuilding. Replacing it with a complete engine from the same family allows for shorter vehicle downtime and reduces the risk of accessory compatibility issues.

Selection, compatibility, and installation aspects

To properly select an engine for a specific Mini One, it is crucial to verify the compatibility of the B38A12A unit with the markings in the vehicle documentation and the factory configuration. The engine belongs to the same design family as the original units installed in the Mini F55, F56, and F57, which promotes full cooperation with the factory engine control unit, electrical installation, and cooling system.

During installation, it is recommended to perform standard service procedures, such as changing the oil, filters, and operating fluids, as well as a thorough inspection of the accessories transferred from the old unit. This approach minimizes the risk of subsequent leaks and facilitates trouble-free engine startup after replacement.

Mini engines – expansion and modernization of the powertrain

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

Technical knowledge and solution comparison

When choosing a powertrain, it is worth knowing the typical design problems of modern engines to avoid costly mistakes. A good point of reference can be an analysis of experiences with related BMW Group constructions – you will find them in the article Faulty BMW E90 engines: check what can ruin your budget!, which discusses critical areas of operation and helps you approach the purchase of a used unit consciously.

If you are considering whether a new replacement or a used OEM engine is a better solution, a practical comparison of the advantages and limitations of both options can be found in the guide New or used? Comparison of costs and quality of car parts. This will allow you to better assess the cost-effectiveness of installing a complete B38 engine in your Mini One.