BMW E90 LCI Turbo Charger Actuator Part Control Unit 49335-19411 N47N 6NW010430

The BMW E90 LCI N47N turbocharger actuator is a specialized component of the turbocharger system in diesel engines, responsible for precisely controlling the turbine's operation. This component, used in the turbocharger and parts category, allows you to restore the turbocharger's proper operation without having to replace the entire turbocharger.

Specifications and technical data

• SKU: 8515188-5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8515188
• Substitutable numbers: 11658515188, 8515188, 49335-19411, 6NW010430, 6NW 010 430
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and function in the supercharging system

The BMW E90 LCI N47N turbocharger actuator controller works with the diesel engine, controlling the position of the turbine's regulating elements according to signals from the engine control unit. It is responsible for:

• stabilization of the boost pressure in the full rpm range,
• smooth turbine response to engine load,
• maintaining proper combustion parameters in the diesel engine,
• reducing the risk of turbocharger overload.

Thanks to this, the supercharging system operates in a controlled manner, which translates into predictable torque characteristics and correct cooperation with engine control systems.

Benefits of using a used controller

Choosing a used turbocharger actuator controller from the Turbocharger and Parts segment offers a cost-effective solution while maintaining proper operating parameters. This type of component allows for:

• restore the efficiency of the supercharging system without interfering with the turbine mechanics,
• maintain the original operating characteristics of the diesel engine,
• reduce repair costs compared to replacing the complete turbocharger,
• maintain compatibility with the factory engine control software.

A used component is a good choice when only the control module or actuator is damaged and the turbocharger itself remains mechanically functional.

Compatibility, References and Fit

This ECU is part of a group of parts designed for specific N47N engine configurations in the BMW E90 LCI. It has a dedicated OEM number and a set of interchangeable numbers, making it easy to select the right variant for your vehicle. When selecting, it is recommended to:

• verification of the OEM part number with the vehicle documentation or existing component,
• checking reference numbers in the manufacturer's catalogue or parts selection system,
• taking into account the type of fuel – in this case, a diesel engine .

This approach minimizes the risk of incompatibility and ensures correct interaction with the engine control system.

Installation and service aspects

The turbocharger actuator is a component mounted directly on or near the turbocharger, depending on the specific system configuration. When replacing it, it's worth paying attention to:

• correct electrical connection to the vehicle's wiring harness,
• tightness and correct seating at the mounting point,
• any need for adaptation or calibration in the engine controller after installation.

Professional installation allows you to fully utilize the component's capabilities and reduces the risk of recurring faults related to the charging system.

Other BMW turbocharger controllers and actuators

If you are looking for other turbocharger controllers or actuators dedicated to vehicles of this brand, check the available turbochargers and parts for BMW to select a component tailored to the specific model and engine version.

More about the profitability of used parts

When choosing a used control unit, it's worth considering the cost-to-durability and quality ratio. A guide describing the differences between original, replacement, and used parts can be helpful. You can find it in the article "Original, replacement, or used – which car parts are the most cost-effective?" , which discusses, among other things, selection by OEM number and practical aspects of operation.

To compare manufacturers' approaches to maintaining brand character in the context of used parts, you can also check out the blog post "Audi and Pure Emotions. How Do Used Parts Help Maintain Brand DNA?" , which shows how carefully selected components help maintain a vehicle's factory-like characteristics.