Engine N57D30A BMW E90 E91 LCI E92 325d 330d N57 Bare with 79k miles, 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.).

Engine N57D30A BMW E90 E91 LCI E92 325d 330d N57 Bare with 79k miles, WARRANTY is an original power unit from the N57 family, designed for 3 Series diesel models. This is an offer for users looking for a factory solution with proven performance parameters and the operating characteristics typical of a BMW inline-six. Thanks to its verified mileage and origin from dismantling, the engine serves as a functional base for professional repair or replacement in 325d and 330d vehicles.

Specifications and technical data

• SKU: 0442930
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0442930
• Substitutable numbers: 11000442930, 0442930, 11000442931, 0442931
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Mileage: 79536

Characteristics of the N57D30A unit

The presented engine belongs to the Engines category and represents a modern BMW diesel design from the N57 family. The inline cylinder layout ensures the refinement characteristic of this brand, while the use of diesel fuel translates into high torque and fuel economy in daily operation. The unit is adapted to work with factory control systems and accessories used in E90, E91, and E92 models in 325d and 330d versions.

Construction and design parameters

The N57D30A engine is an inline, six-cylinder diesel unit designed for stable operation across a wide range of loads. The six-cylinder configuration promotes smooth power delivery and reduced vibration, which is particularly noticeable at higher engine speeds. The use of modern block and cylinder head architecture allows for efficient heat dissipation and maintenance of proper structural rigidity, which is important for long-term operation.

The unit's mileage allows for an assessment of its service history and is an important parameter when planning further use or potential refurbishment. This allows the user to consciously select the scope of service activities, such as checking the timing system, seals, or auxiliary components, matching them to the planned driving style.

Application in BMW 3 Series

The N57D30A engine was developed specifically for the BMW 3 Series E90, E91, and E92 generations in 325d and 330d versions. This means factory compatibility with the engine bay, mounting points, cooling system, and electrical installation of these vehicles. In practice, this facilitates the engine replacement process, reducing the need for modifications and allowing the original driving characteristics of the car to be maintained.

Thanks to the use of this unit in popular 3 Series models, service and diagnostic procedures are readily available, which facilitates maintenance in specialized workshops. At the same time, the user gains the ability to restore the vehicle to full efficiency while maintaining the factory powertrain specification.

Condition, origin, and benefits of choosing a used engine

The offered engine comes from dismantling and is classified as used, which allows for a significant reduction in repair costs compared to purchasing a brand-new unit. This type of solution is particularly beneficial for cars that are several or more years old, where the ratio of the vehicle's value to the cost of repair is of key importance. The preserved mileage allows for a realistic assessment of the potential for further operation and the planning of any preventive work.

Choosing a used BMW engine from the N57 family allows you to maintain the original powertrain specification, avoiding compromises associated with replacements of a different design. This solution is often chosen by workshops specializing in the BMW brand, which prioritize compatibility with factory control systems and accessories.

Selection by part numbers and technical support

When selecting a power unit, it is crucial to verify compatibility by OEM number, interchangeable numbers, and vehicle data (including the VIN). This helps to avoid assembly problems and ensures proper cooperation with the car's electronics. In case of doubt, it is worth seeking the help of a specialist who will compare the engine parameters with the documentation of the specific car.

If you want to better understand how to safely buy used power units and what to pay attention to when verifying mileage, numbers, and service history, check out the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses practical procedures for selection by VIN and OEM.

BMW Engines – powertrain expansion and modernization

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