Keyless Go Module Mercedes C118 W177 W247 ECU Entry Control Unit A1679006912

Mercedes C118 W177 W247 Keyless Go Module ECU Entry Control Unit is an original electronic control unit responsible for advanced keyless system operation in selected Mercedes models. As a component from the Electronic Control Units and Controllers group, it ensures precise communication between the key, vehicle, and comfort systems, supporting convenient and secure vehicle use. This solution is designed for users who want to restore full functionality to the vehicle's access and start system without using a traditional key.

Specifications and technical data

• SKU: A1679006912
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1679006912
• Substitutable numbers: A1679006912, A 167 900 69 12
• Category: ECUs & Computer Modules

Keyless Go Module Function and Application

The presented Keyless Go controller plays a crucial role in managing the vehicle's electronic access, working in conjunction with antennas, locks, and the starting system. It is responsible for key authorization, handling proximity-based vehicle opening and closing functions, and initiating the engine start procedure upon pressing the Start/Stop button. This provides the driver with convenient, automated access to the car without needing to remove the key from their pocket.

The module is specifically designed for selected Mercedes models from the C118, W177, and W247 families, ensuring proper integration with the vehicle's electrical architecture. Factory integration with the electrical system allows for full compatibility with other controllers on the CAN network, minimizing the risk of communication errors and diagnostic issues.

Benefits of Using an Original Mercedes Module

Choosing an original module from the Electronic Control Units and Controllers group offers a range of practical benefits for daily vehicle operation:

• maintaining compatibility with the vehicle's factory software and configuration,
• proper cooperation with safety and comfort systems,
• stable operation of the keyless system under various operating conditions,
• easier diagnostics using service testers dedicated to Mercedes.

This makes the module a sensible solution for both repairs after a Keyless Go system failure and for replacing a damaged controller after interference with the electrical system or interior flooding. A correctly selected controller allows for the restoration of full system functionality without the need for costly replacement of multiple components.

Product Characteristics and Installation Aspects

The offered component is from the range of original Mercedes solutions, meaning its design, connectors, and communication methods comply with the manufacturer's factory standards. This facilitates installation in place of a damaged module and subsequent configuration using appropriate service software. In practice, this translates to:

• secure fit with electrical harnesses and mounting brackets,
• maintaining the factory level of integration with other controllers,
• the ability to perform adaptations and coding according to service procedures.

Due to the nature of an electronic part, installation by a workshop experienced in working with comfort modules and keyless systems is recommended. This helps to reduce the risk of damage due to incorrect connection and ensures proper programming procedures are followed.

Product Condition and Practical Application

The module is offered as a used part, which for Mercedes electronic control units is often a cost-effective service solution. This allows for reduced repair costs while maintaining original quality of workmanship and compliance with factory specifications. A used OEM controller is particularly attractive for repairing several-year-old vehicles where a reasonable cost-to-functionality ratio is a priority.

In practice, the module is suitable for:

• repairing a malfunctioning Keyless Go system after a controller failure,
• damage resulting from flooding, power surges, or errors in additional device installations,
• restoring vehicle configuration after replacing other comfort system components.

Related Categories and Technical Knowledge

If you are planning a comprehensive repair or upgrade of your Mercedes' electronic comfort systems and need other components from the same group, such as comfort controllers, access modules, or central locking control units, check the available parts in the Mercedes Electronic Control Units and Controllers category.

To deepen your knowledge about the operation of modern control units and the practical use of salvaged parts in advanced multimedia and comfort systems, it is worth reading the article Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models Using Salvaged Parts?, which discusses best practices for selecting and installing used electronic modules.

If you are interested in the broader use of used components in car modification projects, the guide Best Used Parts for Your Car Tuning may also be helpful, describing how to consciously select electronic and mechanical parts when expanding vehicle equipment.