Mercedes W177 Window Lifter Switch Front Passenger's Side Button A1679050201

Mercedes W177 Window Lifter Switch Front Passenger's Side Button is an original control component designed for the front cabin area, ideal for precise operation of the electric window on the passenger side. As part of the Switches, control elements and ignition switches group, it ensures consistent operation with the factory electrical system and maintains the interior ergonomics characteristic of the Mercedes brand.

Specifications and technical data

• SKU: A1777203402
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777203402
• Substitutable numbers: A1777203402, A 177 720 34 02, A1679050201, A 167 905 02 01
• Location on the vehicle: Front
• Category: Switches & Controls

Purpose and function in the vehicle

The presented button is dedicated to operating the passenger window lifter in W177 series models, in the front part of the cabin. It is responsible for convenient window movement control from the door panel, maintaining the factory button layout and clear operating logic. Thanks to this, the driver and passenger receive intuitive access to window control without interfering with the original interior architecture.

Construction and integration with the installation

The button belongs to the Switches, control elements and ignition switches group, which means it has been designed for stable cooperation with comfort modules and the factory Mercedes electrical harness. The connector design allows for installation in the place provided by the manufacturer, without the need for installation modifications or the use of additional adapters. The materials used ensure appropriate body rigidity, and the tactile button travel facilitates precise window control even during dynamic driving.

Benefits of using an original component

Using an original window lifter button in a Mercedes W177 allows you to maintain the visual consistency of the door panel and proper cooperation with the vehicle's electronics. The main advantages include:

• factory fit to the shape and mounts in the passenger door,
• proper cooperation with the window control system and comfort module,
• consistent aesthetics with other control elements in the interior,
• preservation of the ergonomics intended by the vehicle manufacturer.

Thanks to this, replacing a damaged or worn button with an original component allows you to restore full window control functionality without compromising on user comfort.

Product characteristics and practical application

The offered Mercedes brand element is intended for installation in the front part of the vehicle, on the passenger side, where it is responsible for daily window operation. The used nature of the part makes it a cost-effective solution while maintaining the original manufacturer's specifications. It is a practical choice both for standard repairs and for restoring full interior functionality after operational damage.

Complementary control elements and further expansion

If you are planning a comprehensive repair or upgrade of the interior control zone in your Mercedes and need other elements from the same group, such as window buttons, mirror switches, or control modules, check the available parts in the Switches, control elements and ignition switches Mercedes category.

More practical information on selecting original, used components for this brand can be found in the article: Used parts for Mercedes – original components from dismantling, which discusses the advantages of using factory elements at a reasonable price.