BMW X3 E83 Z4 E85 E86 Radio Business CD Player Audio Head Unit 6943437

Visual condition of the part

The product shows signs of use visible in the photos.

BMW X3 E83 Z4 E85 E86 Radio Business CD Player Audio Head Unit is an original component from the Electronic control modules and controllers group, designed specifically for factory installation in selected BMW models. This solution ensures equipment consistency, interior aesthetics, and proper audio system operation in accordance with the manufacturer's standards.

Specifications and technical data

• SKU: 6943437-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6943437
• Substitutable numbers: 6943437, 65126943437, 9205278, 65129205278, 6932428, 65126932428, 6927831, 65106927831, 6939664, 65126939664, 6939658, 65126939658, 9146710, 65129146710, 4154935, 65124154935, 6976888, 65126976888, 9132252, 65129132252, 9138430, 65129138430, 9197127, 65129197127, 6935625, KD
• Category: ECUs & Computer Modules

Purpose and compatibility

The Radio Business CD Player Audio Head Unit is a factory control module for the audio system in BMW X3 E83 and BMW Z4 E85/E86 models. Thanks to its design, which meets the manufacturer's requirements, it works seamlessly with the vehicle's electrical installation, factory connectors, and other electronic modules in the car. Such a fit reduces the risk of communication issues within the vehicle's bus and facilitates installation.

Function as an electronic control module

As an element from the Electronic control modules and controllers category, the Radio Business CD Player Audio Head Unit is responsible not only for audio playback but also for managing audio signals, communicating with other controllers, and handling functions available from the radio panel. A correctly selected module:

• ensures stable audio system operation in daily use,
• maintains compatibility with the vehicle's factory settings,
• minimizes the risk of electronic system errors after replacement.

Benefits of using an original BMW module

Using an original Radio Business CD Player Audio Head Unit in a BMW X3 E83 or Z4 E85/E86 allows you to maintain interface consistency, ergonomic operation, and the control logic characteristic of the brand. This is particularly important when you want to:

• maintain the factory look of the center console,
• ensure proper cooperation with other electronic modules,
• facilitate easy integration with the existing installation without additional modifications.

As a result, the Radio Business CD Player Audio Head Unit is a practical solution both for replacing a damaged device and for restoring the car to a configuration close to its factory state.

Characteristics of the used product

The offered module is a used part, which in practice means a favorable cost-to-functionality ratio while maintaining the original BMW specification. This type of component is a good choice when technical compatibility with the vehicle is a priority, and you want to limit expenses compared to purchasing a new part.

Selection and additional technical information

The Radio Business CD Player Audio Head Unit has an assigned OEM part number and associated interchangeable numbers, which facilitates precise identification and selection of the correct module for a specific equipment version. Before purchasing, it is worth comparing the markings with the vehicle data or consulting a mechanic to ensure full compatibility with the electrical installation and other controllers.

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

Substantive support and knowledge about used parts

When selecting used electronic modules, it is worth using reliable sources of knowledge regarding quality and installation principles. A good practice is to familiarize yourself with materials describing how original components influence the character and functioning of a premium car. In this context, an article on our blog may be helpful: Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?, which shows the importance of properly selecting original modules and equipment elements in premium class cars.