Door Control Module Mercedes W169 W245 Relay Unit Right Rear O/S A1698209226

Visual condition of the part

The product shows signs of use visible in the photos.

Door Control Module Mercedes W169 W245 Relay Unit Right Rear O/S is an original component from the Electronic control modules and controllers category, designed to operate the right rear door in Mercedes vehicles. It enables the proper operation of electrical systems within the door, ensuring stable control of comfort and safety functions.

Specifications and technical data

• SKU: A1698209226
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1698209226
• Substitutable numbers: A1698209226, A 169 820 92 26
• Location on the vehicle: Rear, Right
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller is dedicated to installation in the rear right part of the vehicle body, in the passenger door area. As an electronic component, it is responsible for communication between the vehicle's wiring and the sub-assemblies located in the door, such as actuators, switches, or protection systems. Thanks to this module, precise control of door functions from the car's main electrical system is possible.

Benefits of using an original controller

Using an original module from the Electronic control modules and controllers category allows for maintaining the factory operating parameters of the door systems. Proper matching to the Mercedes electrical architecture reduces the risk of communication errors, coding issues, or malfunctions of comfort features. This solution is particularly beneficial for repairs following mechanical damage, water ingress, or electrical system failures within the rear right door area.

The module, as a used part, represents an attractive cost-effective alternative to new components while maintaining proper compatibility with the vehicle platform. This allows for a technically correct repair without the need to interfere with electrical harnesses or use universal solutions.

Vehicle placement and installation aspects

The controller is designed for installation in the rear right zone of the vehicle body, which facilitates the identification of the correct installation location during service. Proper placement on the vehicle is crucial for correct communication with other modules and for maintaining the correct direction of door function operations.

During installation, it is recommended to:

• verify the condition of connectors and electrical harnesses within the door,
• check the correct seating in the mounting brackets,
• perform computer diagnostics after installation to confirm communication with the vehicle network.

Application in professional service and repairs

The rear right door control module is used both in authorized service centers and in specialized workshops dealing with automotive electronics. It is effective for:

• repairs after collisions in the area of the right rear body section,
• door system damage caused by moisture or corrosion,
• diagnosing problems with the operation of the rear passenger door electrical functions.

By maintaining the original internal architecture of the module, it is possible to use standard diagnostic procedures applied in Mercedes vehicles, which speeds up the service process and facilitates verification of correct operation after replacement.

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

Technical support and selection of electronic modules

When selecting controllers and electronic modules, it is worth using current knowledge regarding vehicle network architecture, coding methods, and the possibilities of using dismantled parts. In service practice, materials describing the operating principles of modern comfort systems and communication between modules are helpful. Extended information on the operation of controllers, methods of their diagnostics, and the use of used components in repairs can be found in the article: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?

Summary

Door Control Module Mercedes W169 W245 Relay Unit Right Rear O/S is a practical solution for users and service centers looking for an original, compatible component for operating the right rear door in Mercedes vehicles. Proper placement on the vehicle, compliance with the factory installation, and the possibility of use in professional repairs make it a functional choice for restoring full efficiency of electrical systems in the rear part of the body.