Mercedes S203 Window Regulator Lifter Motor Front Right O/S A2037202446

Mercedes S203 Window Regulator Lifter Motor Front Right O/S is a complete electric drive solution designed for precise operation of the window in the front right door. It offers stable lifting and lowering mechanism performance, ensuring comfortable and smooth adjustment of the driver or passenger window. Thanks to the integration with the motor, this component from the Window regulators and motors category allows for efficient replacement of a worn-out system without the need for additional retrofitting.

Specifications and technical data

• SKU: A2037202446
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037202446
• Substitutable numbers: A2037202446, A 203 720 24 46, A2118201742, A 211 820 17 42, A 203 720 16 46, A2037201646
• Location on the vehicle: Front, Right
• Part type: Regulator & Motor Assembly
• Category: Window Motors & Regulators

Purpose and body fitment

The window regulator has been designed specifically for Mercedes S203 series models, taking into account the geometry of the front right door. The correct placement on the vehicle (front, right side) guarantees proper window guidance in the tracks and correct cooperation with the factory electric controls. The design, based on the manufacturer's original solution, allows for maintaining the factory window travel line, minimizing the risk of jamming or uneven closing.

Construction of the window regulator with motor assembly

The set includes the lifting mechanism along with the electric drive, which simplifies the installation process and reduces the number of parts requiring adjustment. The integrated motor is responsible for generating torque, which is transferred to the window through a system of gears and guides. This configuration ensures:

• consistent operation of the mechanism and drive in one assembly,
• maintenance of the appropriate window movement speed,
• stable guidance throughout the entire opening range.

As a result, the window regulator works well with the factory control buttons in the door and the central convenience module, provided the vehicle is equipped with them.

Benefits of using an original solution

Choosing a complete Mercedes S203 Window Regulator Lifter Motor Front Right O/S helps reduce diagnostic and installation time – the entire assembly responsible for window movement is replaced, rather than individual components. This is a practical solution in situations where symptoms such as slow window operation, stopping halfway, or lack of response to controls occur. Using a component from the Window regulators and motors group with a design consistent with factory specifications helps restore the original functionality of the door without interfering with the body structure.

Performance characteristics and installation

The window regulator is intended for installation in the front right door, which is important for both the geometry of the mounts and the direction of the mechanism's operation. This facilitates service work – after removing the door trim and the old mechanism, the new assembly can be seated in the factory mounting points. The used nature of the part allows for an economical repair while maintaining the original design, which is particularly important for vehicles where consistency with factory solutions is a priority.

Selection support and additional information

To select the appropriate window regulator with motor for a specific body version, it is worth using the OEM part number and interchangeable numbers – this allows for precise verification of compatibility with a given vehicle. In case of doubt, selection procedures based on the VIN number or comparing markings on the existing component are useful.

If you are planning a comprehensive repair or upgrade of the door and window area in your Mercedes and need other elements from the same group, such as guides, lifting mechanisms, or electric window drives, check the available parts in the Mercedes Window regulators and motors category.

More on how to consciously choose used drive components and how to safely use OEM markings and reference numbers can be found in the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses the practical aspects of selecting parts by numbers and repair cost ratios.