Mercedes W176 Electric Window Regulator Driver's Side Switch A1669054300

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W176 Electric Window Regulator Driver's Side Switch is an original control component designed for factory installation in W176 series models. Thanks to its precise construction and perfect fit for the vehicle's electrical system, it ensures reliable window control and consistency with the interior ergonomics characteristic of the Mercedes brand. This is a solution for users who expect to maintain factory functionality and cockpit aesthetics.

Specifications and technical data

• SKU: A1669054300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1669054300
• Substitutable numbers: A1669054300, A 166 905 43 00, KZ
• Category: Switches & Controls

Purpose and function in the control system

The window switch in the Mercedes W176 is responsible for operating the electric window regulators from the door panel. The component belongs to the Switches, control elements, and ignition switches group, which means it works with the comfort system and modules responsible for controlling interior equipment. A correctly selected switch allows for maintaining the full functionality of factory solutions, such as driver and passenger window control, window lock, or integration with the central locking system (if provided in the specific vehicle configuration).

Construction and fit for the Mercedes W176

The offered switch has been designed specifically for the interior architecture of the Mercedes W176, ensuring proper fitment with the door upholstery and control panel. The design is integrated with factory electrical connectors, which facilitates installation and reduces the risk of errors during connection. Using an original solution allows for maintaining a consistent cockpit appearance, appropriate button travel force, and predictable electrical system response to every signal from the switch.

Benefits of using an original switch

Choosing an original window switch for the Mercedes W176 primarily ensures compatibility with factory electronics and predictable behavior of the comfort system. The component from this group:

• maintains compliance with the operating parameters of the vehicle's control modules,
• reduces the risk of errors appearing in onboard systems,
• ensures a consistent look and ergonomics of the door panel,
• facilitates future servicing and diagnostics.

Thanks to this, the switch is the right choice both for standard replacement of a worn-out part and for restoring full functionality of the window control system after bodywork or electrical repairs.

Operational characteristics and installation

The component belongs to the group of manual controllers that transmit signals to the modules responsible for window drive. In practice, this means that after correct connection and mounting in the door, the driver gains access to all functions provided by the vehicle manufacturer. The switch is prepared for installation in the factory location, which allows for maintaining the original position relative to the door handle and armrest, thus ensuring comfortable operation while driving.

The product is offered in used condition, which in practice means it comes from disassembly and has been verified for suitability for further use. This solution allows you to combine reasonable cost with maintaining the manufacturer's original specifications.

Expanding the control system in a Mercedes

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 button panels, additional control modules, or ignition switch components, check the available parts in the Mercedes switches, control elements, and ignition switches category.

When working with control systems and electrical installations, it is also worth ensuring the efficiency of systems responsible for driving safety. In the context of vehicle servicing, a guide on selecting used brake system components may be helpful, available in the article Second-hand brake system: how to safely choose discs, calipers, and ABS?, which shows how to consciously approach the purchase of key components in a used parts store.