Head Unit BMW E90 E91 LCI Radio CD Player Navigation Sat Nav Alpine 9257189

Visual condition of the part

The product shows signs of use visible in the photos.

Head Unit BMW E90 E91 LCI Radio CD Player Navigation Sat Nav is an original component from the Electronic control modules and controllers group, designed for factory installation in 3 Series E90 and E91 models. The device integrates radio and navigation functions, ensuring seamless control of the multimedia system and communication with other electronic modules of the vehicle. This is a solution for users who expect stable performance, compliance with OEM installation, and the preservation of the factory character of the BMW interior.

Specifications and technical data

• SKU: 9257189
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9257189
• Substitutable numbers: 9257189, 65129257189, 9283431, 65129283431, 9273171, 65129273171, 9263612, 65129263612, 9246338, 65129246338, 9248103, 65129248103, 9239215, 65129239215, 9246347, 65129246347
• Category: ECUs & Computer Modules

Purpose and function in the vehicle

The radio navigation for BMW E90/E91 acts as a central module handling audio and route guidance functions, working in conjunction with the vehicle's electrical system and other controllers. As an OEM component, it is designed to operate within the vehicle's bus system, which enables proper communication with the display, control panel, amplifier, and comfort modules.

The device is part of the system responsible for:

• controlling radio and navigation functions via factory buttons,
• cooperation with the speaker system and any audio modules,
• integration with the vehicle menu and system messages.

Benefits of using an original BMW module

Using a factory multimedia module in a BMW E90/E91 allows for maintaining electronic consistency and interior aesthetics. The original controller is designed for a specific vehicle platform, which reduces the risk of compatibility issues and communication errors at the controller network level. As a result, operating the radio and navigation remains intuitive, and all functions intended by the manufacturer can operate as designed.

The module has an assigned OEM part number and associated interchangeable numbers, which facilitates the selection of the correct variant for a specific car configuration. When matching, it is worth using the manufacturer's markings and vehicle data to ensure full hardware and software compatibility.

Condition, origin, and installation aspects

The offered item is a used OEM BMW module, sourced from dismantling, intended for reinstallation in a vehicle with the appropriate specification. Choosing original second-hand electronics is often a cost-effective solution while maintaining operating parameters consistent with the manufacturer's factory assumptions.

Before installation, it is recommended to:

• verify compatibility by OEM part number and interchangeable numbers,
• check the vehicle equipment configuration (type of audio installation, display type),
• plan any necessary programming or coding procedures in the vehicle.

Installation should be performed by a person familiar with the specifics of BMW electronics, following procedures for disconnecting and connecting power and the rules for working with control modules.

Selection, compatibility, and technical support

To correctly select the Head Unit BMW E90 E91 LCI Radio CD Player Navigation Sat Nav for a specific vehicle, it is worth using the OEM part number, the list of interchangeable numbers, and vehicle data (model, year, equipment version). This approach minimizes the risk of hardware incompatibility, communication problems in the controller network, and the need for additional installation modifications.

If you want to better understand how to safely choose used electronic modules, what to look for regarding hardware and software compatibility, and what the installation and diagnostic process looks like, check out the guide: Used automotive electronics – how to consciously choose modules and sensors.

Expanding the BMW electronics system

If you are planning a comprehensive repair or upgrade of the onboard electronics in your BMW and need other components from the same group, such as comfort controllers, multimedia modules, or ECU units, check the available parts in the BMW electronic control modules and controllers category.

For users interested in the wider use of second-hand parts in vehicles of this brand, the material describing the advantages of such a solution, quality issues, and cost-effectiveness of the purchase may also be helpful: is it worth investing in used components for BMW.