Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit A1679003604

Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit is a specialized component from the Electronic control modules and controllers group, responsible for handling keyless vehicle access and ignition. The offered controller comes from the Mercedes brand and is designed for vehicles in the C118, W177, and W247 families, ensuring consistent operation of the comfort access system.

Specifications and technical data

• SKU: A1679003604
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1679003604
• Substitutable numbers: A1679003604, A 167 900 36 04
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented Keyless Go module acts as an electronic control unit for the vehicle's keyless entry and ignition system. As a component in the Electronic control modules and controllers category, it works with the car's electrical system, comfort system antennas, and the factory immobilizer, coordinating access authorization and engine start.

The module is designed to integrate with the electrical architecture of Mercedes C118, W177, and W247 models, allowing for the retention of original vehicle functionality, including support for the start/stop button and remote door unlocking according to the car's configuration.

Benefits of using an original Mercedes controller

Using an original controller from the ECU Entry Control Unit group ensures:

• consistency with the factory vehicle software,
• proper cooperation with security and comfort systems,
• stable communication with other modules in the vehicle network.

This maintains the full functionality of the Keyless Go system and minimizes the risk of compatibility issues compared to non-original solutions.

Product condition and service application

The offered module is in used condition, making it an attractive service solution for repairing comfort electronics in Mercedes vehicles. Such components are often chosen for:

• troubleshooting issues related to the lack of response from the keyless system,
• repairs following electrical damage or water ingress,
• restoring vehicle configuration after replacing other controllers.

Before installation, it is recommended to verify compatibility by part numbers and prepare the module for operation in the specific vehicle according to the manufacturer's service procedures.

Selection, compatibility, and technical support

To ensure the proper operation of the Keyless Go system, it is crucial to match the controller to the specific car configuration, taking into account the equipment version and electrical architecture. In practice, this means checking compatibility by part numbers and, if necessary, matching the software in the vehicle.

If you want to better understand how to safely select and install used controllers and other electronic components, the Global Parts guide will be helpful: Used automotive electronics – ECU modules and second-hand sensors. You will find information there about selection by VIN/OEM, compatibility issues, and practical aspects of installation.

Expanding the control system in Mercedes

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

Summary

Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit is an original, used controller designed to support the keyless system in selected Mercedes models. When properly selected and integrated with the vehicle, it allows for the restoration of full comfort access system functionality, providing a cost-effective solution for electronics repairs in modern cars of this brand.