BMW 5 Series E60 E61 Bare Engine 525d M57N 256D2 Diesel 177HP 85k 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.).

BMW 5 Series E60 E61 Bare Engine 525d M57N 256D2 Diesel 177HP 85k miles WARRANTY is an original power unit from the M57 family, designed for the 5 Series E60 and E61 models. The engine belongs to the highly regarded generation of BMW diesel units, known for its refinement, solid construction, and favorable balance between performance and fuel consumption. By maintaining factory specifications, it serves as an ideal base for professional repair or engine replacement in your vehicle.

Specifications and technical data

• SKU: 7789800
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7789800
• Substitutable numbers: 11007789801, 7789801, 11007789800, 7789800
• Fuel type: Diesel
• Number of cylinders: 6
• Category: Engines
• Mileage: 59 000

Technical characteristics of the M57N 525d unit

The presented engine belongs to the Engines category and is a diesel inline-six cylinder unit. This configuration ensures smooth torque delivery and stable, predictable operation across the entire rev range. The 525d M57N 177HP version is a popular choice due to its good flexibility, adequate dynamics for daily driving, and reasonable load on mechanical components.

The diesel engine in this configuration performs well both on the highway and in mixed driving conditions, offering the characteristic BMW torque at low and medium RPMs. The inline-six cylinder layout promotes smooth operation and simplifies diagnostics and service compared to more complex designs.

Application and selection by VIN/OEM

BMW 5 Series E60 E61 Bare Engine 525d M57N 256D2 Diesel 177HP 85k miles WARRANTY is intended for installation in the E60/E61 generation 5 Series, in 525d versions with the M57N engine. When selecting a power unit, it is crucial to compare the engine code and reference numbers with the vehicle documentation, which helps avoid compatibility issues with accessories, wiring harnesses, and the ECU.

To select the correct engine for a specific vehicle, it is recommended to:

• verify the M57N 525d designation in the vehicle documents and on the identification plate,
• check compatibility via the VIN number in the manufacturer's catalog or with a specialist,
• compare the OEM part number and interchangeable numbers with data in the service system.

This minimizes the risk of additional installation modifications and ensures a smooth replacement process.

Condition, mileage, and operational potential

The offered engine is a used component, sourced from dismantling, with documented mileage that still leaves significant operational potential with proper maintenance. The low mileage for this class of unit favors further, long-term operation in the vehicle, provided that basic installation and initial startup procedures are followed.

During installation, standard service procedures are recommended, such as changing the oil and filters, checking the cooling system, and verifying accessories transferred from the old engine. This approach increases the chances of trouble-free operation and allows you to fully utilize the capabilities of the M57N unit.

Benefits of choosing a used BMW engine

Purchasing a used engine from the M57N family is a solution that, in many cases, significantly reduces repair costs compared to remanufacturing or purchasing a brand-new unit. BMW diesel engines of this generation are well-understood by workshops, which facilitates installation, diagnostics, and subsequent service.

If you want to better understand the differences between new, remanufactured, and used power units, as well as learn practical tips on selection by VIN and OEM numbers, check out our guide Why it is worth buying used gearboxes and engines – facts instead of myths. It is a helpful source of knowledge when planning a drivetrain repair.

Related BMW Engines

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 power units, check out the available parts in the BMW Engines category.