Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S A2139008409

Seat Module Mercedes W213 C238 Memory Control Unit Left Right N/O/S is a specialized component from the Electronic control modules and controllers group, responsible for managing the settings of the driver or front passenger seat. The offered module comes from a Mercedes vehicle and is designed for installation on either the left or right side, allowing for flexible application depending on the vehicle's configuration.

Specifications and technical data

• SKU: A2139008409
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139008409
• Substitutable numbers: A2139008409, A 213 900 84 09
• Location on the vehicle: Right, Left
• Category: ECUs & Computer Modules

Purpose and function of the module

The seat memory module in Mercedes W213 and C238 models is responsible for the electronic control of seat positioning and saving selected settings. It integrates with the vehicle's electrical system as a dedicated controller, working in conjunction with adjustment buttons and other comfort systems inside the cabin.

By using an original module from the same family of controllers, communication consistency within the vehicle's bus is maintained, which translates into stable operation of the seat adjustment function on the left or right front side.

Application in Mercedes vehicles

The presented module is intended for Mercedes E-Class W213 generation and C238 coupe versions equipped with electric seat adjustment with memory function. The placement on the vehicle covers both the driver and front passenger sides, which facilitates the selection of the component when replacing a faulty controller.

Using an original electronic control module allows for maintaining the factory logic of the comfort system, without the need for modifications to the installation or interference with wiring harnesses.

Benefits of using the original seat memory module

Using a dedicated seat memory module in the Mercedes W213/C238 ensures:

• preservation of factory seat adjustment functionality on the left or right front side,
• consistency with other electronic control modules in the vehicle,
• the ability to restore the memory settings function after replacing a faulty controller,
• reduction of the risk of communication errors in the vehicle network thanks to the use of a component from the same family of controllers.

For users, this means more convenient vehicle operation and easier adjustment of the seat position to individual preferences, without sacrificing the memory function.

Characteristics and installation

The offered component belongs to the Electronic control modules and controllers group, meaning it acts as an independent controller responsible for a specific area of equipment – in this case, memory and front seat control. Installation involves connecting the module to the existing wiring and properly seating it in the designated location on the left or right side of the vehicle.

Due to the specifics of automotive electronics, installation by a person with experience in working with control modules is recommended, taking into account safety procedures and potential adaptation in the vehicle's system.

Technical support and electronics selection

In the case of electronic control modules, such as the seat memory controller, correct selection based on equipment version and compatibility with the vehicle's installation is crucial. To better understand the principles of selecting used electronics, differences in hardware and software versions, and best installation practices, it is worth reading the guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Related Mercedes control modules

If you are planning a comprehensive repair or upgrade of the comfort electronics area in your Mercedes and need other components from the same group, such as window controllers, comfort modules, or other seat controllers, check the available parts in the Electronic control modules and controllers Mercedes category.