Mercedes W213 W222 Tailgate Bootlid Comfort Module Control Unit A2139004711

Mercedes W213 W222 Tailgate Bootlid Comfort Module Control Unit is a specialized component from the Electronic control modules and controllers group, responsible for precise management of the trunk lid operation in modern E-Class and S-Class models. Original Mercedes electronics ensure stable communication with the vehicle's electrical system, proper handling of comfort functions, and consistency with the factory system architecture.

Specifications and technical data

• SKU: A2139004711
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139004711
• Substitutable numbers: A2139004711, A 213 900 47 11
• Category: ECUs & Computer Modules

Purpose and function of the tailgate comfort module

The presented controller is a central element responsible for the logic of the trunk lid operation in high-end Mercedes vehicles. The module supervises the operation of actuators, position sensors, and safety features, and communicates with other body controllers, which allows for:

• smooth opening and closing of the trunk lid,
• cooperation with comfort access and closing systems,
• monitoring the status of the lock and safety latches,
• integration with the lighting and signaling system in the rear part of the vehicle.

Thanks to the use of an original module, full compatibility with factory software and the car's electrical architecture is maintained, which minimizes the risk of errors and fault messages on the dashboard.

Benefits of using an original Mercedes module

Choosing an original tailgate comfort controller for a Mercedes primarily means certainty of fitment for a specific vehicle platform and predictable behavior of all body functions. A module from the same family of electronics as other controllers in the car:

• maintains the consistency of communication protocols in the CAN/LIN network,
• limits the need for electrical system modifications,
• facilitates diagnostics using factory service tools,
• ensures stable operation of comfort systems over the long term of operation.

This solution is particularly recommended for professional post-accident repairs, replacements after water damage, or when dealing with issues related to improper trunk lid operation.

Product characteristics and practical application

The Mercedes W213 and W222 tailgate comfort module belongs to the Electronic control modules and controllers group, which means it works directly with the body controller network. In practice, this translates into:

• precise control of the lid movement depending on sensor signals,
• possibility of integration with comfort opening functions from the remote or from the interior,
• support for anti-pinch safety features and soft-close control,
• easier adaptation and coding at the service center thanks to compliance with factory standards.

Using this component allows for an economical repair while maintaining the original build quality and design, which is especially important in premium class vehicles.

OEM selection and technical support

When selecting a tailgate comfort controller, it is crucial to match it by the OEM number and ensure the hardware and software version compatibility with the specific vehicle configuration. Proper pairing of the module with the car reduces the risk of communication problems in the controller network and eliminates the need for installation modifications.

If you want to deepen your knowledge about the safe selection and installation of used automotive electronics, how to verify compatibility, and coding principles, check out our guide: Used automotive electronics – ECU modules and second-hand sensors.

Expanding the comfort system in a Mercedes

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other components from the same group, such as additional body controllers, door comfort modules, or lighting management units, check out the available parts in the Electronic control modules and controllers Mercedes category.