BMW 7 Series E65 E66 E67 Phone Transmitter-receiver Module ECU Siemens 6921679

BMW E65 Bluetooth Control Module 6921679 is an original electronic component designed for the factory connectivity system in BMW 7 Series E65 models. It enables convenient operation of Bluetooth functions, integrating your phone with the vehicle's onboard electronics and improving the ergonomics of daily use. By using an OEM part, high compatibility with the electrical system and the architecture of BMW multimedia systems is maintained.

Specifications and technical data

• SKU: 6921679
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6921679
• Substitutable numbers: 84116931712, 6931712, 84110153590, 0153590, 84116923200, 6923200, 84116921679, 6921679, 84116918046, 6918046, 84116926472, 6926472, 84116921403, 6921403, 84110309889, 0309889, 84116924902, 6924902, 84116919505, 6919505
• Category: Other Interior Parts & Accessories

Module Purpose and Function

The presented Bluetooth module is a component of the comfort and multimedia system, responsible for wireless communication between the vehicle and mobile devices. As a dedicated part for the BMW E65, it works with factory audio and control systems, ensuring seamless operation with the vehicle's interface and logic. Using an original module helps maintain proper system operating parameters, reduces the risk of communication errors, and avoids problems typical of aftermarket replacements.

Benefits of Using an Original BMW Module

Choosing an original BMW Bluetooth control module translates to stable operation of the entire electronic system. This component has been designed specifically for the E65 architecture, meaning matched connectors, appropriate software, and correct signal parameters. In practice, this means:

• correct cooperation with the factory multimedia system,
• preservation of steering wheel and center console control functionality,
• consistency with onboard diagnostics and BMW service tools,
• reduced risk of conflicts with other comfort and electronic modules.

Thanks to this, upgrading or repairing the Bluetooth system in a BMW E65 can be performed in a manner close to factory standards, without the need for installation modifications or the use of additional adapters.

Condition, Origin, and Fitment

The module comes from a dismantled BMW vehicle and is offered as a used part, allowing for economical repair of the connectivity system while maintaining the original manufacturer's specifications. This type of component is a particularly beneficial choice in case of a factory controller failure, when maintaining full integration with the existing installation is important. Before installation, it is recommended to verify compatibility with the specific E65 equipment and, if necessary, perform adaptation or coding according to BMW service procedures.

Integration with Other Vehicle Systems

The Bluetooth module in the BMW E65 works with a range of other comfort and multimedia modules, creating a cohesive electronic ecosystem. A correctly selected component helps maintain:

• stable communication on the vehicle's data bus,
• proper operation of the hands-free system functions,
• consistency of equipment configuration stored in the control module memory.

Using an original module promotes predictable system behavior, which is important both from the user's perspective and for subsequent service diagnostics.

Related Components and System Development

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

To better understand the design and configuration differences in advanced premium models, including extensive drive and electronics systems, it is worth familiarizing yourself with a comparative material on sports variants – you will find it in the article Audi RS vs. Other Models – What's Under the Hood and Chassis?.

If you want to maximize the potential of parts from dismantling and ensure their long-term, trouble-free operation in electronic systems, you will find practical tips in the guide How to Extend the Lifespan of Used Car Parts?.