BMW 5 7 Series E61 E65 E66 E67 HKL Bootlid Trunk Lid Control Unit Module

BMW 5 7 Series E61 E65 E66 E67 HKL Bootlid Trunk Lid Control Unit Module is an original trunk lid control module designed for selected BMW 5 and 7 Series models. As a component from the Computers and Controllers group, it is responsible for the precise management of the electric trunk lid, ensuring convenient and safe operation. This is a solution for users who want to restore the full functionality of the trunk opening and closing system while maintaining factory parameters.

Specifications and technical data

• SKU: 6921404
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6921404
• Substitutable numbers: 61357188110, 7188110, 61350420682 61350390073 61356947059, 61350409889 61356918622 61356980008, 0420682 0390073 6947059 0409889 6918622 6980008, 61356949060 61350402554 61350392426, 61356921404 61356983205 61350153634, 6949060 0402554 0392426 6921404 6983205 015
• Category: Control Modules

Purpose and function of the module

The presented trunk lid controller is dedicated to BMW 5 Series E61 and 7 Series E65, E66, and E67 vehicles equipped with an electric trunk lid system. The module manages the operation of actuators, position sensors, and safety features, coordinating the process of opening, closing, and stopping the lid at a set position. As a result, the system operates smoothly, and the response to signals from buttons, the remote control, or the comfort system remains consistent with factory settings.

Benefits of using an original controller

Using an original module from the Computers and Controllers group allows for maintaining consistency with the vehicle's remaining electronics. The controller is designed for specific BMW platforms, which translates into:

• proper communication with the vehicle bus and other controllers,
• stable operation of comfort functions related to the trunk lid,
• appropriate response to signals from the remote control, interior buttons, and sensors,
• maintenance of factory safety logic during lid operation.

For the user, this means predictable, repeatable system operation and easier diagnostics if service is required.

Product characteristics and installation

The module belongs to the category of electronic computers and controllers, so its proper operation requires a functional vehicle electrical system and correct installation in the location provided by the manufacturer. In practice, this means the necessity of:

• using the appropriate vehicle wiring connectors,
• maintaining the correct sequence for connecting and disconnecting the battery,
• potential adaptation or coding in the vehicle, if required by the specific unit.

Due to the nature of automotive electronics, installation by a person with experience in BMW control modules is recommended, which minimizes the risk of errors and speeds up system activation.

Condition and service application

The offered module is a used component, which makes it an attractive solution for repairs where it is crucial to maintain reasonable costs while using original BMW electronics. This type of controller is suitable both for a typical replacement of a damaged module and for restoring full functionality of the trunk lid comfort system after previous mechanical or electrical failures.

If you want to better understand when choosing a used controller or other electronic module makes sense, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the BMW trunk control system

If you are planning a comprehensive repair or upgrade of the trunk area in your BMW and need other components from the same group, such as additional control modules, comfort units, or controllers related to central locking, check the available parts in the BMW Computers and Controllers category.

Summary

BMW 5 7 Series E61 E65 E66 E67 HKL Bootlid Trunk Lid Control Unit Module is a practical solution for users who want to restore the efficient operation of the electric trunk lid using original electronics. The module, as part of the control system, ensures compatibility with the vehicle's factory architecture, facilitates diagnostics, and allows for maintaining trunk operation comfort at the level intended by the manufacturer.