Mercedes W177 Remote Key AMG Fob Button Switch Black A1779059404

Used key – requires programming

The key requires programming (coding) by a specialist to be fully functional.

Mercedes W177 Remote Key AMG Fob Button Switch in black is an original control system component designed for operating the central locking and comfort functions in vehicles of this series. This used, factory-original button module within the key fob ensures consistent operation with the vehicle's electronics while maintaining the characteristic, discreetly sporty look of the AMG version. It is a practical solution for users who want to restore full remote functionality without compromising on build quality.

Specifications and technical data

• SKU: A1779059404
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1779059404
• Substitutable numbers: A1779059404, A 177 905 94 04
• Color: Black
• Category: Switches & Controls

Technical characteristics and intended use

The presented AMG remote key is a component from the Switches, control elements, and ignition locks group, responsible for executing user commands regarding locking, unlocking, and additional comfort functions. The integrated button set is designed to work with the vehicle's factory electronic modules, which allows for maintaining stable communication with the comfort and security system.

The black remote housing blends well with most interior configurations, and the button layout is optimized for ergonomics – enabling intuitive operation without taking your eyes off the surroundings. Thanks to the use of an original solution, the consistency of communication protocols and operating logic with the car's factory software is preserved.

Construction, ergonomics, and utility values

The AMG key in the black finish version is distinguished by a compact design, where the button section is precisely integrated with the control electronics. The layout of the buttons has been developed to allow for:

• reliable access to vehicle locking and unlocking functions,
• convenient use of additional comfort features,
• one-handed operation, even while wearing gloves.

The black finish reduces the visibility of minor signs of wear and fits well into the aesthetics of modern interiors. Using an original button module helps maintain proper sensitivity and repeatability of response to presses, which translates into daily usage comfort.

Application in the vehicle control system

This AMG remote model is intended for use within the factory control system of the Mercedes W177 series. As a component from the switches and control group, it works with modules responsible for the central locking, comfort functions, and anti-theft security. Proper matching to a specific car configuration is based on the OEM part number and interchangeable numbers, which allows for verifying compatibility with a given equipment version.

Replacing the remote or the button module itself is particularly important in the case of issues with response to presses, improper operation of remote functions, or mechanical damage to the housing. Using an original component helps reduce the risk of communication errors with the vehicle's electronics and ensures predictable operation in the long term.

Condition, selection, and practical aspects

The offered AMG remote is a used part, which in practice means a favorable compromise between the purchase cost and maintaining factory specifications. Choosing an original component from disassembly allows for maintaining visual and functional consistency with other interior components, while simultaneously limiting expenses compared to new replacements.

When selecting this type of element, it is worth paying attention to compatibility with the specific equipment version and requirements regarding programming or adaptation in the vehicle. If necessary, it may be helpful to use guides on safe purchasing and verification of used electronic system components, such as the comprehensive checklist in the article Second-hand brake system: how to safely choose discs, calipers, and ABS?, which shows universal principles for assessing the condition of parts from disassembly.

Expansion of upgrades within Mercedes control

If you are planning a comprehensive repair or upgrade of the control and comfort zone in your Mercedes and need other elements from the same group, such as function buttons, control modules, or ignition lock inserts, check the available parts in the Switches, control elements, and ignition locks Mercedes category.