Head Unit BMW E81 E90 LCI Business System Car Infotaiment Computer CIC 9239321

Head Unit BMW E81 E90 LCI Business System Car Infotaiment Computer CIC is an original multimedia module designed for factory infotainment systems in facelifted BMW 1 and 3 Series models. It enables the operation of advanced navigation functions, integration with other vehicle systems, and convenient control via iDrive. This is the ideal solution for drivers looking to restore full functionality to their factory navigation or perform a solid retrofit in their BMW.

Specifications and technical data

• SKU: 9239321
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9226347
• Substitutable numbers: 65129283249, 9283249, 65129226347, 9226347, 65129217029, 9217029, 65129258278, 9258278, 65129223314, 9223314, 65129263948, 9263948, 65129239323, 9239323, BG, 65129221835, 9221835
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the vehicle

The presented CIC unit is a component of the multimedia system responsible for navigation, vehicle menu operation, and integration with other comfort modules. It is used in BMW E81, E87, E90, and E91 LCI models, where it works in conjunction with the factory iDrive controller and central display.

The module is responsible for:

• generating the graphical interface on the central screen,
• handling navigation and communication functions,
• cooperating with the factory sound system and other comfort controllers,
• consistent management of vehicle settings via the iDrive menu.

Benefits of using the original CIC navigation

Using an original BMW module ensures full compatibility with the vehicle's electrical architecture and data bus. As a result:

• proper communication with other controllers is maintained,
• the user interface remains consistent with the rest of the equipment,
• you avoid problems typical of universal solutions (errors, interference, lack of integration with the onboard computer).

This is particularly important when replacing a damaged module or upgrading an older system version to a more advanced CIC unit.

Condition and use in service and retrofits

The item comes from disassembly and is intended for reinstallation in a vehicle after proper configuration. It is suitable for both professional workshops specializing in the BMW brand and advanced users performing a factory navigation retrofit on their own.

Before installation, it is recommended to:

• verify compatibility with the specific vehicle equipment version,
• plan the coding and adaptation of the module to the car,
• check the installation for any previous modifications.

Integration with other systems and parts selection

The CIC module works with other multimedia system components, such as the display, iDrive controller, or audio amplifier. When planning a repair or upgrade, it is worth considering the completeness of the entire multimedia path to ensure stable operation and full system functionality.

If you are planning a comprehensive repair or upgrade of your BMW cockpit and need other components from the same group, such as control modules, multimedia units, or iDrive control elements, check the available parts in the Other BMW category.

Additional information and technical knowledge

For a comparison of solutions used in different brands and sports segments, it is worth reading the analysis of powertrains and chassis in high-performance cars – a practical summary can be found in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the differences in design and manufacturers' approaches to premium-class components.

Choosing an original CIC navigation module for your BMW is a solution that allows you to maintain the factory character of the interior, consistent operation of all functions, and predictable behavior of the multimedia system after repair or upgrade.