Mercedes V177 Radio Remote Alarm Ignition Key Fob Button A1779050703

Mercedes V177 Radio Remote Alarm Ignition Key Fob Button is an original, used electronic key designed for the comfort and security system in Mercedes vehicles. This advanced module combines remote unlocking, alarm operation, and ignition authorization functions in one housing, ensuring convenient and consistent vehicle operation. Thanks to its factory OEM design, it is a fully-fledged electronic system component, ready for further configuration by a specialized service center.

Specifications and technical data

• SKU: A1779050703
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779050703
• Substitutable numbers: A1779050703, A 177 905 07 03
• Category: ECUs & Computer Modules

Purpose and function in the electronic system

The presented remote is a component from the Electronic control modules and controllers group, working with the immobilizer, central locking, and alarm system in the V177 body. As a remote control key, it acts as a user interface for communication with the vehicle, transmitting encoded signals to the body and security controllers. Proper configuration in the vehicle allows for safe engine starting and operation of comfort functions.

Construction and integration with the vehicle system

The key combines control electronics, function buttons, and a radio communication system, creating a coherent module that works with the factory Mercedes installation. It has been designed to:

• operate within the original electronic architecture of the vehicle,
• ensure stable communication with comfort and security modules,
• allow for programming and adaptation at a specialized service center.

As a result, it constitutes a natural complement to the existing system, without the need for universal or non-factory solutions.

Practical application and benefits of installation

Using this remote in a Mercedes V177 is particularly beneficial in situations where the existing key has suffered mechanical or electronic damage or has been lost. Replacing it with an original module from the same family allows you to:

• restore full functionality of remote control and ignition,
• maintain the integrity of the vehicle's security system,
• preserve the ergonomics of operation in accordance with the manufacturer's standard.

For workshops and automotive electricians, this is a practical base for further programming, enabling the remote to be matched to a specific vehicle in accordance with service procedures.

Characteristics of the used product

The item comes from the category of used electronic components, which in practice means the possibility of optimizing repair costs while maintaining the original design. This type of solution is often chosen by professional service centers that can correctly verify the condition of the electronics and carry out the coding process. A used remote, after proper preparation and configuration, can continue to ensure stable operation in the vehicle's control and comfort system.

Selection and additional technical information

Before purchasing, it is recommended to verify compatibility with the specific vehicle equipment version and consult an electrician or a service center specializing in the Mercedes brand. Proper selection and correct coding of the remote are crucial for the operation of the immobilizer, alarm, and comfort functions. If necessary, you can refer to the OEM part number, interchangeable numbers, and warehouse markings, which are available in the technical specifications section.

If you are planning a comprehensive repair or upgrade of the body electronics area in your Mercedes and need other elements from the same group, such as comfort controllers, body modules, or other remote controls, check the available parts in the Mercedes electronic control modules and controllers category.

To better assess when choosing a used remote, controller, or other electronic module is technically and economically justified, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?