Mercedes C205 Door Window Lifter Electric Regulator Front Right O/S A2057206620

Mercedes C205 Door Window Lifter Electric Regulator Front Right O/S is an original component from the Window regulators and motors group, designed for the precise operation of the window in the front right door of the C-Class coupe body. Thanks to its factory design, it ensures proper cooperation with the vehicle's electrical system and stable, repeatable operation of the window lifting and lowering mechanism.

Specifications and technical data

• SKU: A2057206620
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057206620
• Substitutable numbers: A2057206620, A 205 720 66 20
• Location on the vehicle: Front, Right
• Part type: Window Regulator
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The presented electric window regulator is dedicated for installation in the front right door of the C205 body, which is the coupe version of the popular Mercedes C-Class. It is responsible for the smooth guidance of the window in the rails and for transferring the drive from the electric motor to the lifting mechanism, which translates into comfortable operation via the door buttons or the comfort module.

Placement in the door zone requires maintaining appropriate geometry and structural rigidity, which is why using an original regulator allows for maintaining the correct fit of the window with the seals, reducing wind noise, and minimizing the risk of motor and cable overload.

Construction and performance parameters

The element belongs to the Window regulators and motors group, which means integrated cooperation of the mechanical part with the vehicle's electrical system. The regulator's construction is prepared for operation in the front passenger door, taking into account the specific shape of the window and rails in the C205 body.

Key performance features include:

• dedicated fit to the geometry of the front right door,
• compatibility with the factory window control system in the Mercedes,
• stable window guidance throughout the full range of motion,
• designed for serviceability, allowing for disassembly and reassembly at original mounting points.

Use of a used part

The regulator is offered as a part from the secondary market, which allows for an economical repair of the window system while maintaining the manufacturer's original design. In many cases, using a used OEM element is a favorable compromise between cost and fit quality, especially in a few-year-old vehicle, where both reliability and rational service expenses count.

If you want to better understand when choosing components from disassembly is technically and economically justified, the expert guide Refurbished or used original – which part to choose for repair?, which discusses the practical differences between regeneration and installing used elements, will be helpful.

Selection by numbers and vehicle compatibility

The selection of an electric window regulator for a specific Mercedes vehicle should always be confirmed based on the OEM part number or vehicle data. This allows avoiding problems with installation, differences in door geometry, or incompatibility with the electrical system. In case of doubt, procedures for selection by catalog numbers and by VIN are useful, as described in more detail in the article Why it is worth buying used gearboxes and engines – facts instead of myths, where practical rules for verifying part compatibility are discussed.

Expanding the window control zone in a Mercedes

If you are planning a comprehensive repair or modernization of the door zone in your Mercedes and need other elements from the same group, such as window motors, rails, or complete window mechanisms, check the available parts in the Mercedes Window regulators and motors category.

Summary

Mercedes C205 Door Window Lifter Electric Regulator Front Right O/S is a factory-designed window system element intended for operation in the front right door of the C-Class coupe. Using an original construction from the Window regulators and motors group facilitates installation, ensures proper window guidance, and allows for restoring full functionality of the passenger-side window control while maintaining the vehicle manufacturer's standards.