BMW F20 F21 F30 F31 F32 Body Control Unit Module REM 6809049

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM is a factory electronic control unit designed for selected BMW 1, 3, and 4 Series models. It is responsible for the precise management of specific body functions, ensuring stable communication with other controllers in the vehicle. Designed in accordance with the Electronic control units and controllers standard, this component allows for professional repair or replacement of a faulty module in new-generation BMW vehicles.

Specifications and technical data

• SKU: 6809049-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6809049
• Substitutable numbers: 61359499001, 9499001, 61359329700, 61359293305, 61359274021, 61359269871, 61356809049, 61359362394, 61359298958, 61359279822, 61359374506, 61359311982, 61359284255, 61356819332, 61359866978, 61359291787, 61359246700, 61359317173, 61359321404, 61359267286, 9329700, 9293305, EM, 9866978
• Category: ECUs & Computer Modules

Purpose and function of the REM module

The REM body module in BMW F-series vehicles is responsible for coordinating selected electrical functions in the rear part of the vehicle and communicating with the data bus. As a component from the Electronic control units and controllers group, it works with other controllers, enabling the proper operation of comfort and safety systems. Using an original module dedicated to the F20, F21, F30, F31, and F32 platforms helps maintain the consistency of the vehicle's electrical architecture and reduces the risk of communication errors.

Compatibility and interchangeability within BMW

The presented REM module is a solution developed specifically for selected BMW 1, 3, and 4 Series models on the F platform, which facilitates matching it to a specific vehicle configuration. The manufacturer has provided various interchangeable part numbers for it, meaning that in many cases, it can function as a replacement for earlier or later versions of the controller within the same vehicle family. Before installation, it is recommended to verify compatibility with the vehicle's equipment and software to ensure proper integration with the controller network.

Product characteristics and benefits of use

As a BMW brand component, the REM body module has been designed for stable operation in the demanding electrical environment of modern vehicles. Using an original controller allows you to:

• maintain compliance with the factory electrical installation architecture,
• minimize the risk of data bus communication issues,
• facilitate diagnostics using dedicated service software,
• prepare the vehicle for potential controller software updates.

For workshops specializing in the BMW brand, using such a module means a more predictable repair process and the ability to maintain a high level of compliance with the manufacturer's technical documentation. For the end user, this translates into stable operation of the body electrical systems and a reduction in the risk of recurring faults.

Condition, installation, and service aspects

The offered REM module is a used part, sourced from dismantling, which allows for economical repair while maintaining the original BMW specification. Before installation, it is recommended to perform a standard diagnostic procedure and – if necessary – adaptation or coding in accordance with the requirements of the specific vehicle. Professional installation by a workshop familiar with the BMW F-series electrical architecture allows for fully utilizing the potential of this controller and reducing vehicle downtime.

Expanding the control system in BMW

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

To better plan service work on the electronic systems in your car, it is worth checking out practical tips regarding diagnostics and the use of parts from dismantling – you will find them in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 Series models using parts from dismantling?.

Summary

BMW F20 F21 F30 F31 F32 Body Control Unit Module REM is an original controller from the Electronic control units and controllers group, intended for professional repair of electrical systems in selected BMW F-series models. Properly selected and correctly coded, it provides a solid foundation for restoring full functionality to body systems, ensuring consistency with the factory vehicle architecture and predictable behavior during further operation.