Door Module Mercedes CL203 Front Right O/S Control Unit A2038700426

Mercedes CL203 Front Right Door Module is a component from the Electronic Control Modules and Controllers category, responsible for advanced management of the right front door functions. This used module is designed for installation on the front – right side, ensuring proper cooperation with the vehicle's electrical system and comfort systems.

Specifications and technical data

• SKU: A2038700426
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2038700426
• Substitutable numbers: A2038700426, A 203 870 04 26
• Location on the vehicle: Front, Right
• Category: ECUs & Computer Modules

Vehicle Application and Placement

The door module has been specifically designed to operate on the right front door in the CL203 body style. Its construction and connectors are tailored to the factory wiring harness and Mercedes' electronic architecture, ensuring consistency with other controllers in the vehicle.

The placement specified as front, right indicates that the module works with the mechanisms and sensors installed in the right front door, responsible for their correct control and communication with the car's central systems.

Technical Characteristics of the Module

As a component within the Electronic Control Modules and Controllers group, the door module functions as a local controller for the door-mounted sub-assemblies. It is responsible for processing signals from switches and sensors, and for relaying information to the vehicle's main controllers.

A solution based on a dedicated door module allows for:

• Maintaining consistent communication within the vehicle's electronic network,
• Precise control of functions assigned to the right front door,
• Easier fault diagnosis within the door area due to a clearly defined controller.

Benefits of Using an Original Door Module

Using a module dedicated to the Mercedes CL203 ensures compliance with the vehicle's factory electrical architecture. Proper integration with the wiring and other controllers minimizes the risk of communication problems, errors in comfort systems, or malfunctioning door components.

Key advantages include:

• Compatibility with factory wiring – connectors and operating logic are adapted to Mercedes systems,
• Consistency with other controllers – the module works within the same family of Electronic Control Modules and Controllers,
• Diagnostic capability – supported by standard service tools designed for Mercedes vehicles.

Module Application in Service Practice

The Mercedes CL203 Front Right Door Module is suitable for repairs following door electronics failures, as well as for replacing a damaged controller after a collision or water ingress. A used component helps reduce service costs while maintaining proper system functionality.

In workshop practice, this type of module is installed as a replacement for a damaged controller, followed by standard diagnostic procedures and potential adaptation according to the vehicle manufacturer's guidelines.

If you are looking for other Mercedes Electronic Control Modules and Controllers, check out the available Mercedes Electronic Control Modules and Controllers in our store to select the appropriate controller for other systems in your car. elektroniczne moduły sterujące i sterowniki Mercedes

Used Modules and Maintaining Brand Character

Properly selected used controllers help maintain the consistent operation of comfort and safety systems without the need to invest in new components. For other premium brands like Audi, we discuss a similar approach to selecting original modules and equipment in more detail in the article: Audi and Pure Emotion – How Used Parts Help Maintain Brand DNA. Although it concerns a different manufacturer, it effectively illustrates the importance of using original electronic modules in premium cars.