BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo 8570675

BMW F30 F32 LCI N57N N57Z Diesel Engine Alternator Generator 230A Valeo is an original component from the Alternators and generators group, designed for BMW diesel engines. High current efficiency and factory BMW construction make this a solid solution for drivers expecting stable power supply for the electrical system in a diesel-powered vehicle.

Specifications and technical data

• SKU: 8570676
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8570676
• Substitutable numbers: 8570676, 12318570676, 8509227, 12318509227
• Fuel type: Diesel
• Category: Alternators & Generators

Purpose and technical specifications

The presented alternator has been designed for BMW F-series models with N57N and N57Z engines, where reliable power supply for extensive onboard electronics is required. The high-efficiency design provides sufficient power reserve for comfort systems, safety features, and additional electrical loads typical for modern BMW diesels.

As a part from the Alternators and generators category, this component is responsible for converting the engine's mechanical energy into electrical energy, charging the battery, and stabilizing the voltage in the electrical system. Using an original BMW solution reduces the risk of compatibility issues, control unit errors, or interference with electronic systems.

Benefits of using an original BMW alternator

Using a factory alternator in a BMW diesel engine offers a number of practical advantages:

• reliable cooperation with the energy management system in diesel vehicles,
• charging characteristics properly matched to the loads typical for N57N / N57Z units,
• maintenance of voltage stability with a large number of active electrical consumers,
• reduced risk of battery overcharging or undercharging in demanding operating conditions.

Thanks to this, the alternator is a safe choice for users expecting predictable operation of the electrical system, especially in cars used intensively, e.g., on long routes or in urban conditions with frequent starts.

Condition, origin, and fitment

The offered alternator is an original BMW brand component, sourced from dismantling, which allows for maintaining factory standards of workmanship and fitment. The used nature of the part means that the component has been previously operated, but retains functionality suitable for further use after proper installation and verification by a mechanic.

For the correct selection of the alternator for a specific BMW F30 diesel vehicle, it is recommended to compare OEM data and interchangeable numbers with the vehicle's specification. This helps avoid mechanical and electrical compatibility issues and ensures proper mounting and cooperation with engine accessories.

Professional installation and operation

To fully utilize the capabilities of this alternator, it is worth commissioning the installation to a specialized service that will:

• check the condition of the accessory belt and tensioner,
• verify the correctness of electrical and ground connections,
• test charging parameters after starting the engine,
• evaluate the alternator's cooperation with the vehicle's energy management system.

Such an approach minimizes the risk of subsequent failures and allows for maintaining stable operation of the electrical system in a diesel car, especially in vehicles equipped with numerous comfort and safety systems.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as alternator housings, pulleys, or mounting brackets, check the available parts in the BMW Alternators and generators category.

To better match a used alternator to your car and avoid mistakes related to OEM markings, it is worth using practical expert tips – detailed advice can be found in the article No more bad purchases! How to professionally choose used car parts.