Mercedes W213 Door Module Front Right O/S Control Unit A2139004409

The Mercedes W213 Front Right Door Module is an original component from the electronic control modules group, designed for the front right door of Mercedes E-Class W213 generation vehicles. This specialized controller ensures precise operation of door functions, maintaining consistency with the car's factory electrical architecture.

Specifications and technical data

• SKU: A2139004409
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2139004409
• Substitutable numbers: A2139004409, A 213 900 44 09, KD
• Location on the vehicle: Front, Right
• Category: ECUs & Computer Modules

Module Purpose and Function

The Mercedes W213 Front Right Door Module is dedicated for installation in the front right door of the vehicle. As part of the comfort system, it is responsible for controlling and communicating with the sub-assemblies located within the door, working in conjunction with the electrical system and other vehicle controllers.

Its placement on the vehicle, specified as front – right side, guarantees proper alignment of wiring harnesses, connectors, and mounting points. This allows the module to be integrated into the existing controller network without requiring modifications to the door's structure.

Benefits of Using an Original Module

Choosing an original controller from the Electronic Control Modules and Controllers category ensures operational parameters remain consistent with the vehicle's factory settings. This is particularly crucial in modern designs where module communication occurs via digital buses and requires hardware and software compatibility.

• maintaining the factory logic for door comfort systems,
• proper cooperation with other body controllers,
• compatibility with the front passenger side electrical system,
• the ability to utilize existing mounting points and connectors.

As a part of the Mercedes brand, the module is designed for long-lasting, stable performance under demanding operating conditions.

Condition, Origin, and Service Application

The component is offered as a used control module, providing a cost-effective service solution for vehicles involved in collisions, water damage, or electrical system failures within the door area. A correctly chosen controller allows for the restoration of full door functionality without the need for expensive new parts.

The module is suitable for use in both professional Mercedes-specialized workshops and independent garages that service modern electronic systems. Its original construction allows for the application of standard diagnostic and programming procedures.

Vehicle Selection and Compatibility

To correctly select the module for a specific car, it is advisable to verify:

• compatibility with the W213 body generation,
• placement on the vehicle – front, right side,
• information on the OEM part number and available replacement numbers in the technical specifications section.

The presence of assigned replacement numbers simplifies the search for compatible controllers within the same part family, which is particularly useful when repairing vehicles from different production years.

Application of Used Modules in Modern Cars

In premium vehicles like the Mercedes W213, the use of original, used controllers often represents a sensible compromise between repair cost and maintaining factory quality. A similar approach is also adopted by other premium brands. If you are interested in a broader context of using original used components in modern cars, it is worth reading the article on the role of original used modules and equipment in maintaining the character of premium brands.