Mercedes C238 W213 Trunk Lid Handsfree Switch Sensor A2139058001

Mercedes C238 W213 Trunk Lid Handsfree Switch Sensor is a component from the Electronic control modules and controllers group, responsible for precise control of the tailgate operation in Mercedes vehicles. This component ensures proper cooperation between the control system and the tailgate mechanism, which translates into convenient and trouble-free use of the luggage compartment.

Specifications and technical data

• SKU: A2139058001
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139058001
• Substitutable numbers: A2139058001, A 213 905 80 01
• Location on the vehicle: Rear
• Category: ECUs & Computer Modules

Function and application of the trunk lid sensor

The presented sensor operates in the rear part of the vehicle, monitoring the process of opening and closing the trunk lid. Its task is to transmit information about the current position of the lid to the controller, which enables the correct operation of comfort and safety systems. A properly functioning element of this type contributes to:

• reliable recognition of the lid status (open/closed),
• cooperation with the vehicle's electronic body systems,
• stable operation of functions related to trunk access.

Benefits of using an original Mercedes module

Choosing a sensor dedicated to the C238 and W213 series allows for maintaining consistency with the vehicle's factory electrical architecture. Proper fitment to the installation and control logic reduces the risk of communication errors between modules and facilitates diagnostics during potential inspections. For the user, this means:

• maintaining functionality in accordance with the vehicle manufacturer's specifications,
• proper cooperation with existing body controllers,
• reduced risk of problems with improper closing or lid status signaling.

Installation characteristics and vehicle integration

The sensor is designed for installation in the rear body zone, within the trunk lid. The design of the element is prepared to work with the factory wiring harness and existing mounting points. Thanks to this, the replacement process can be carried out in an orderly manner, maintaining the service standards specific to the Mercedes brand. A correctly installed component supports stable communication within the body control system.

Condition and selection of the appropriate element

The offered sensor comes from a group of used electronic elements, which allows for an economical restoration of the trunk lid control system's efficiency while maintaining the original specification. Before purchasing, it is worth verifying compatibility with the specific vehicle equipment version to ensure proper cooperation with existing modules and software.

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as controllers, comfort modules, or body sensors, check the available parts in the Mercedes electronic control modules and controllers category.

Technical support and electronics selection

When selecting used electronic elements, it is important to pay attention to the compatibility of markings, hardware and software versions, and the configuration of the specific vehicle unit. A properly selected sensor minimizes the risk of system errors and limits the need for additional programming. To better understand the principles of selecting and installing such components, it is worth reading the guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.