BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit V3 6819334

BMW F20 F21 F30 F31 REM Rear Electronic Module Fuse Box Control Unit is an original electrical system component responsible for the precise control of selected functions in the rear of the vehicle. Thanks to its factory design intended for specific generations of the BMW 1 and 3 Series, the module ensures consistency with the electrical installation and stable operation of comfort and safety systems. This is a solution for users who expect reliable fitment, predictable performance, and compliance with the factory electronics architecture.

Specifications and technical data

• SKU: 6819334
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6819334
• Substitutable numbers: 61356819334, 6819334
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and function of the REM module

The REM control module in a BMW is responsible for managing selected electrical circuits located in the rear of the vehicle body. As a component from the Fuses and fuse boxes group, it works with the installation protecting individual circuits, which allows for controlled power distribution and protection of systems against overloading.

Its location in the rear area of the vehicle helps to shorten the length of wiring harnesses and improves the logic of the installation routing, which is a practical and clear solution from a diagnostic and service perspective.

Compatibility with BMW F20, F21, F30, F31

The REM controller has been designed for BMW F-series platforms, including the compact F20/F21 models and the F30/F31 sedan and touring models. This means:

• maintaining the factory electrical architecture without the need for installation modifications,
• consistency with diagnostic systems used in BMW service centers,
• easier identification and handling during inspections and repairs.

As a result, the module can be used both for standard replacement of a faulty controller and for work related to restoring full functionality of the electronics in the rear of the vehicle.

Technical characteristics and installation

As a component located in the rear body zone, the REM controller works with the local fuse box and the appropriate wiring harnesses. The design provided by the manufacturer allows for:

• installation in the factory-prepared location,
• connection to existing connectors without the need for adaptation,
• maintaining the original routing of the electrical installation.

This type of solution reduces the risk of installation errors and facilitates subsequent computer diagnostics, which is particularly important in modern vehicles with an extensive network of control units.

Condition and service application

The offered REM module is a used part, which in workshop practice often represents a reasonable compromise between the cost of repair and maintaining the manufacturer's original specifications. This type of part can be used for:

• troubleshooting issues related to power supply and control of selected circuits in the rear of the car,
• post-accident repairs where damage to the installation in the trunk area or rear panels has occurred,
• restoring full vehicle functionality after an electronics failure.

For workshops specializing in the BMW brand, using an original controller from the same model family facilitates maintaining the consistency of the vehicle configuration and correct coding.

Expansion and other elements from the fuse group

If you are planning a comprehensive repair or modernization of the electrical installation area in the rear of your BMW and need other elements from the same group, such as additional boxes, power distribution modules, or fuse housings, check the available parts in the BMW Fuses and fuse boxes category.

To better plan modernization work in the vehicle interior, including the potential replacement of seats with branded parts from dismantling, it is worth checking out the guide on the impact of such modifications on comfort and the perceived value of the car – details can be found in the article Interior metamorphosis: how branded seats from dismantling affect the comfort and value of a car.