Door Module Mercedes W205 W213 C253 Rear Left N/S Control Unit ECU A1679004511

The Mercedes W205 W213 C253 Rear Left Door Module is a specialized component from the Electronic Control Modules and Controllers group, responsible for managing door functions in the rear left part of the vehicle body. The offered module is a used part, allowing for an economical yet technically sound repair of the electrical system in Mercedes vehicles. This solution is for users who expect a factory fit and stable door installation performance.

Specifications and technical data

• SKU: A1679004511
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1679004511
• Substitutable numbers: A1679004511, A 167 900 45 11
• Location on the vehicle: Rear, Left
• Category: ECUs & Computer Modules

Door Module Purpose and Function

The presented module is designed for installation in the rear left area of selected Mercedes C-Class, E-Class models, and SUV/coupe body styles. As a door controller, it ensures proper communication between the vehicle's electrical system and the actuators within the door, such as motors, switches, or security systems. This allows for consistent operation of the vehicle's comfort and safety systems.

Benefits of Using an Original Mercedes Module

Using an original door module ensures:

• factory fit to the vehicle's wiring harness and network architecture,
• proper cooperation with other body control modules,
• preservation of the operational logic for comfort and security functions,
• reduced risk of communication errors in the electronic system.

For users and service centers, this translates to more predictable installation and less need for additional adaptation compared to non-original replacements. For vehicles equipped with extensive body electronics, choosing such a solution helps maintain the integrity of the entire system.

Integration with Vehicle Systems and Installation

The rear left door module is designed to operate in a specific body location, which dictates the arrangement of connectors and mounting methods. This ensures organized wiring and secure mounting of the controller within or in the immediate vicinity of the door. During installation, it is recommended to:

• verify module compatibility with the vehicle using the part number or catalog data,
• inspect connectors and wiring harnesses before connection,
• perform post-installation diagnostics to check vehicle network communication.

This approach helps reduce repair time and facilitates the quick restoration of full functionality to the rear left door.

Practical Service Application

Modules from the Electronic Control Modules and Controllers group are crucial components in modern Mercedes vehicle electrical systems, so their selection should be based on technical data and compatibility with the specific equipment version. In service practice, such a module is used for repairs after collisions, as well as for troubleshooting issues related to unresponsive door components, communication errors, or malfunctioning comfort functions. Choosing used parts helps optimize costs while maintaining performance characteristics close to factory standards.

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

Technical Support and Electronic Module Selection

When working with complex vehicle electronics, it is advisable to use reliable sources of knowledge regarding diagnostics and controller selection. To better understand the operating principles of body modules, their communication within the vehicle network, and the practical aspects of using used parts, an article on control systems in modern cars may be helpful. More information on the operation of electronic modules, their diagnostics, and the application of used components can be found in the material: Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Used Parts?.