Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Bosch 8571358

Alternator BMW G11 G12 LCI G20 G21 G30 G31 Alternator 250A Bosch is an efficient charging system component designed for modern BMW models with diesel engines. It ensures a stable power supply to the vehicle's electrical system and battery, which is crucial for the reliable operation of all onboard systems. Thanks to its high current output, it provides a solid foundation for both daily operation and intensive vehicle use.

Specifications and technical data

• SKU: 8571358
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8571358
• Substitutable numbers: 8571358, 12318571358
• Fuel type: Diesel
• Category: Alternators & Generators

Purpose and compatibility

The offered generator is part of the Alternators and generators group, designed to work with Diesel engines in selected BMW G-series models. The alternator's design is tailored to the requirements of modern energy management systems typical for the G11, G12 LCI, G20, G21, G30, and G31 platforms, which translates into proper integration with the vehicle's electronics.

The high current output of the alternator allows for a stable power supply to the extensive electrical system, including comfort systems, safety features, and advanced control modules. As a result, this component is well-suited for cars equipped with numerous power consumers, typical of modern BMW sedans and wagons.

Operating parameters and technical characteristics

The 250A Bosch alternator has been engineered to operate in demanding conditions characteristic of diesel engines. High current reserve ensures sufficient power capacity for all consumers, even under heavy electrical load, such as during night driving with air conditioning and additional comfort systems switched on.

The solutions applied in this alternator model support stable voltage in the system, which reduces the risk of power drops and unwanted error messages in electronic systems. The use of Bosch technology promotes consistent operating parameters and predictable charging system behavior under various road conditions.

Benefits of using an original BMW alternator

Using an original alternator in a BMW vehicle translates into a number of practical benefits:

• precise fitment to the mounting system and engine accessory drive,
• proper cooperation with the factory charging control system,
• appropriate operating characteristics for diesel units,
• reduced risk of electrical compatibility issues.

This allows you to maintain the integrity of the charging system according to the vehicle manufacturer's specifications, which is important for both battery longevity and the stability of all electronic systems.

Condition, verification, and practical application

The offered alternator is a used component, which allows for an economical repair of the charging system while maintaining the original manufacturer's specifications. This type of solution is particularly beneficial for modern BMW models, where matching electrical parameters and communication with vehicle electronics is of great importance for trouble-free operation.

Before installation, a standard service procedure is recommended, including checking the condition of the accessory belt, tensioner, as well as ground connections and power cables. Properly performed alternator replacement restores full charging system efficiency and eliminates typical signs of wear, such as starting problems or sporadic voltage drops.

Expanding the charging system in your BMW

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 additional generators, alternators with similar output, or compatible units, check the available parts in the BMW alternators and generators category.

To compare how premium manufacturers approach original components and ways to optimize service costs, it is worth reading an article describing the strategy of selecting parts for another high-end brand: Mercedes – comfort, prestige, and durability. Why is it worth choosing original used parts?. This will allow you to better assess the advantages of using original, used components in your BMW as well.