BMW X3 F25 X4 F26 35dX Complete Engine N57Z N57D30B 313HP 99k 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.

BMW X3 F25 X4 F26 35dX Complete Engine N57Z N57D30B 313HP 99k miles, WARRANTY is a complete powertrain unit from the N57 family, designed for BMW X3 F25 and X4 F26 models in the 35d xDrive version. It is a modern, inline 6-cylinder diesel engine, engineered for dynamic driving, high refinement, and efficient Diesel fuel consumption. Thanks to its factory configuration with 313 HP, it serves as a solid foundation for professional repair or engine replacement in premium BMW vehicles.

Specifications and technical data

• SKU: 2239387-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2239387
• Substitutable numbers: 2239387, 11002239387, 2239386, 11002239386, 5A6DAC3, 11005A6DAC3
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Engine code: N57D30B
• Mileage: 99 000

Technical characteristics of the N57D30B engine

The presented engine belongs to the advanced N57 family, widely used across the BMW range. The inline 6-cylinder layout ensures high refinement, smooth torque delivery, and good resistance to the loads typical for xDrive drivetrains. The use of Diesel fuel allows for a favorable combination of performance and economy, which is particularly important in heavier SUV models such as the X3 F25 and X4 F26.

The N57D30B engine is a turbocharged unit (in the 35dx version with a multi-stage turbocharging system), which translates into quick throttle response and a wide range of usable torque. In practice, this means efficient acceleration both in the city and on the highway, as well as comfortable driving under full load.

Application in BMW X3 F25 and X4 F26 35dx

The complete N57D30B engine was factory-designed to work with the xDrive all-wheel-drive system in the 35dx versions of the BMW X3 F25 and BMW X4 F26 models. The appropriate placement of accessories, mounting points, and the configuration of the fuel and control systems make it a unit structurally matched to the engine bay of these specific models.

Such compatibility is important not only for installation but also for integration with the vehicle's electronics, cooling system, and drivetrain. Choosing a complete engine from the same family and model designation minimizes the risk of compatibility issues and reduces workshop labor time.

Benefits of installing a complete engine

Purchasing a complete powertrain unit from the N57 family for the BMW X3 F25 / X4 F26 35dx is a solution that is often more cost-effective than repairing a severely damaged engine. A complete engine allows for:

• reducing vehicle downtime in the workshop,
• maintaining structural consistency with the original BMW specification,
• easier diagnostics and configuration compared to mixing components from different versions,
• restoring the full performance of the 35dx version, in line with factory specifications.

An additional advantage is the ability to assess the condition of the unit based on the known mileage, which facilitates planning for further operation and any necessary service procedures after installation.

Condition, origin, and practical aspects

The offered engine is in the Engines category and is a component sourced from BMW dismantling, which allows for maintaining the manufacturer's original specification. As a used part, it is an attractive cost alternative to brand-new units, while maintaining compliance with the vehicle's design.

Before installation, standard preparatory procedures are recommended, such as replacing consumables, checking the cooling system, and verifying accessories against the requirements of the specific vehicle. This approach increases the reliability of the entire powertrain after replacement.

BMW Engines – choosing the right unit

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

For users interested in a broader context of operating BMW power units, including typical problems and repair costs, the article describing critical designs in the 3 series may be helpful – read the material: Troublesome BMW E90 engines: check what can ruin your budget!.

If you want to better understand how using used parts from dismantling affects service costs and the environment, it is also worth reading the guide on the circular economy in the automotive industry: Circular economy in your garage – how choosing used parts from dismantling supports the environment and your budget.