Mercedes Benz C Class W205 Front Left Window Regulator Motor A2057226100

Mercedes Benz C Class W205 Front Left Window Regulator Motor is an original component from the Window regulators and motors group, designed for precise operation in the front left window of this model. This used component ensures a factory fit, stable operation of the window lifting mechanism, and the preservation of the proper functionality of the comfort system. It is a solution for users who want to restore window efficiency without compromising the quality characteristic of the Mercedes brand.

Specifications and technical data

• SKU: A2057226100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057226100
• Substitutable numbers: A2057226100, A 205 722 61 00
• Location on the vehicle: Front, Left
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and fitment for the W205 body

The presented window regulator motor has been designed specifically for operation in the front left part of the C Class W205 body. This means proper positioning relative to the guides, glass, and seals, as well as compatibility with factory wiring and controls in the driver's or passenger's door on the left side (depending on the market version). As a result, installation is straightforward, without the need for modifications to the wiring or interference with the door structure.

Technical characteristics of the window regulator motor

The window regulator motor in the C Class W205 is responsible for driving the mechanism that ensures smooth raising and lowering of the window. This component works with the comfort opening and closing control system, responding to signals from the buttons on the door panel and the central locking remote. The construction based on factory solutions ensures:

• stable torque matched to the weight of the glass and the gear ratio of the mechanism,
• proper cooperation with factory anti-pinch safety features,
• appropriate operating speed, limiting mechanical stress on the system. Thanks to this, the window lifting system maintains predictable operating parameters, which is important for both user comfort and the durability of the entire mechanism.

Use of an original used component

Choosing a used, original window regulator motor for a Mercedes W205 is a compromise between costs and maintaining factory standards. A component from the same product line as the part installed during initial assembly usually works better with the vehicle's electronics than random replacements. Proper fitment to the installation, mounting brackets, and controllers in the vehicle reduces the risk of communication errors, improper window operation, or the need for additional adaptation. A used component also allows for maintaining the structural integrity of the door, which is important during operation in changing weather conditions and with frequent use of the window opening and closing functions.

Benefits of a correctly selected window regulator motor

Selecting the right window regulator motor for a specific version of the C Class W205 translates into a number of practical benefits:

• maintaining the correct geometry of the window movement in the guides,
• reduction of noise and vibrations during window movement,
• lower load on the electrical system due to matched operating parameters,
• easier diagnostics of potential faults in the future, thanks to compliance with factory diagrams. In practice, this means more predictable operation and a lower risk of repeated repairs shortly after replacement.

Support with selection and additional materials

To ensure that the selected window regulator motor will work properly with the electrical and mechanical system of your car, it is worth using selection based on vehicle identification numbers or manufacturer markings. The principles of safely choosing used drive and control components, including procedures for selection by numbers, are discussed in more detail in the guide Why it is worth buying used gearboxes and engines – facts instead of myths, which helps in making informed purchasing decisions based on real data rather than common opinions. If you are planning a comprehensive repair or modernization of the door and window area in your Mercedes and need other elements from the same group, such as drives, control modules, or complete lifting mechanisms, check the available parts in the Mercedes window regulators and motors category.