Mercedes W205 W213 X253 Door Module Rear Right O/S Control Unit ECU A1679009611

Mercedes W205 W213 X253 Door Module Rear Right O/S Control Unit ECU is a specialized component from the Electronic control modules and controllers group, responsible for the precise management of the right rear door functions. This original module, designed for Mercedes vehicles, ensures consistency with the factory electrical architecture and stable operation of comfort systems.

Specifications and technical data

• SKU: A1679009611
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1679009611
• Substitutable numbers: A1679009611, A 167 900 96 11
• Location on the vehicle: Rear, Right
• Category: ECUs & Computer Modules

Purpose and function of the door control unit

The presented control unit is designed to operate in the rear right door area, where it is responsible for coordinating signals between the vehicle's electrical installation and the components located in the door. The module handles, among other things, the logic for window control, central locking, and lighting, integrating with the vehicle's master electronic systems.

Thanks to a design compliant with the manufacturer's factory standards, the module works with the vehicle's communication bus, enabling proper data exchange with other control units. This solution reduces the risk of communication errors and facilitates diagnostics using professional service testers.

Benefits of using an original Mercedes module

Using an original door module in Mercedes W205, W213, and X253 series cars allows for maintaining the consistency of the vehicle's electronic configuration. The control unit is prepared for integration with factory wiring harnesses, connectors, and software, which promotes stable operation of comfort and safety systems.

Key advantages include:

• preservation of factory door function logic,
• compatibility with original electrical diagrams,
• possibility of diagnostics and configuration using standard service tools,
• reduction of the risk of problems resulting from the use of unsuitable replacements.

Installation characteristics and vehicle integration

The module is designed for installation in the rear right part of the body, in the immediate vicinity of the door wiring harness. Thanks to the factory fit for a specific body area, installation is limited to correctly connecting the plugs and any necessary configuration using appropriate service software.

The location on the vehicle in the rear right zone allows for shortening the length of control and power cables, which positively affects signal stability and reduces susceptibility to interference. This solution is particularly important in modern vehicles, where many comfort and safety functions are performed by distributed electronic modules.

Product condition and service application

The offered item comes from the segment of used components, which allows for economical repair of electrical systems while maintaining the manufacturer's original specifications. In workshop practice, such a module works well both when replacing a damaged controller and when reconstructing the installation after a collision or door flooding.

Choosing a used, original door control unit is particularly beneficial in vehicles equipped with extensive comfort systems, where hardware and software compatibility is of key importance for the proper operation of the entire network of control units.

OEM selection and practical tips

When selecting a door module for a specific Mercedes vehicle, it is worth using the OEM number and vehicle data to ensure full hardware and software compatibility. Verification by VIN and comparison of markings on the controller housing allows for minimizing the risk of incompatibility.

For users and workshops who want to deepen their knowledge on the safe use of used controllers, selection by numbers, and installation principles, a practical guide has been prepared: Used automotive electronics – how to consciously choose ECU modules and sensors. The article discusses, among other things, issues of hardware and software compatibility, which is particularly important when working with door modules.

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