Mercedes W205 Window Lifter Switch Regulator Trim Rear Left N/S A2057370900

Mercedes W205 Window Lifter Switch Regulator Trim Rear Left N/S is an original interior component designed for the rear left door area in W205 series models. This used, factory-original trim ensures the proper seating of the window control switch, maintaining a consistent cockpit appearance and correct operating ergonomics. Thanks to its precise fit, it provides a practical solution for repairing or replacing a damaged door upholstery element.

Specifications and technical data

• SKU: A2057370900
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057370900
• Substitutable numbers: A2057370900, A 205 737 09 00
• Location on the vehicle: Rear, Left
• Category: Switches & Controls

Purpose and function of the component

The window switch trim housing is dedicated for installation in the rear left part of the vehicle, within the door panel. Its task is to stably hold the switch in the correct position, which translates into reliable button operation and an aesthetic finish of the surface around the controller. Due to its design, which complies with Mercedes factory standards, the correct geometry of the mounts and the contact line with the door upholstery are maintained.

Construction and interior fitment

The trim has been designed as an element from the Switches, control elements and ignition switches group, which means it works with the original window control switch in the rear doors. The shape and profile of the edges are adapted to the W205 door panel, which facilitates installation and allows for maintaining a consistent, factory-original interior look. The used part ensures compatibility with factory clips and guides, which reduces the risk of play or improper fitment.

Benefits of using the original trim

Using the original window switch trim housing in the rear left part of the vehicle allows you to:

• maintain the uniform interior design characteristic of the W205 series,
• ensure stable mounting of the switch without the need for modifications,
• preserve the correct ergonomics of window control operation for rear seat passengers,
• minimize the risk of rattles and play resulting from ill-fitting replacements.

For users who value equipment consistency and ease of operation, the factory window switch trim is a practical choice for interior repairs.

Application in the repair process

The element will prove useful both when replacing a damaged trim after cracking or breaking of the clips, and when completing missing details after door upholstery disassembly. Thanks to its dedicated placement on the vehicle in the rear left part of the body, the installation proceeds in an orderly manner, maintaining the factory logic of cable routing and switch positioning. This solution is particularly useful in vehicles where maintaining the original finishing standard is a priority.

Modernization expansion and selection of related elements

If you are planning a comprehensive repair or modernization of the window control zone in your Mercedes and need other elements from the same group, such as additional housings, trims, or button modules, check the available parts in the Mercedes switches, control elements and ignition switches category.

To better plan your repair budget and consciously choose used components for your car, it is worth reading the guide describing the advantages of original parts from disassembly: Used parts for Mercedes – original parts from disassembly.