Mercedes W203 Rear Right Door Window Regulator Lift Electric A2037300446

Mercedes W203 Rear Right Door Window Regulator Lift Electric is a component from the Window regulators and motors category, designed to control the operation of the window in the rear right door. It is a practical solution for users who want to restore the efficient operation of the electric window lift while maintaining the factory performance characteristics and solid construction typical of the Mercedes brand.

Specifications and technical data

• SKU: A2037300446
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2037300446
• Substitutable numbers: A2037300446, A 203 730 04 46
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and vehicle placement

The presented regulator is dedicated to installation in the rear right part of the body, in the passenger door area. The placement on the vehicle is clearly defined as Rear – right side, which facilitates the selection of the correct component when repairing the window lifting system in a Mercedes C-Class W203 generation.

Thanks to its precise fit for a specific position in the body, the element works with the guides, the window, and the electrical installation in accordance with the manufacturer's factory specifications, ensuring stable window movement and reducing the risk of jamming.

Technical and functional characteristics

The regulator belongs to the Window regulators and motors group, i.e., components responsible for transferring the drive from the electrical system to the window lifting mechanism. The construction is prepared to work with factory door equipment, which allows for maintaining the original operating geometry and proper window guidance in the rails.

In practice, this means that after correct installation, the user regains:

• smooth opening and closing of the window in the rear right door,
• stable window guidance without excessive play,
• consistent operation with factory window control switches.

Product condition and benefits of choosing a used part

The offered regulator is a component in used condition, which is a reasonable compromise between the cost of repair and maintaining the original vehicle specification. Choosing a used component of this class allows you to reduce expenses while benefiting from a part coming from the same product line as the car's factory equipment.

A used window regulator is a good solution in situations where:

• the existing mechanism has suffered mechanical damage or operational wear,
• it is important to maintain the original door construction and compatibility with the factory installation,
• a quick, technically correct repair is important without the need for a costly replacement of the entire set of components.

Selection by numbers and vehicle compatibility

To precisely match the regulator to a specific equipment version and model year, it is worth using the manufacturer's markings, such as the OEM part number or available interchangeable numbers. This avoids installation problems and guarantees that the element will work with the existing electrical and mechanical system in your Mercedes.

If you are interested in the broader context of using used parts in vehicle repairs, selection procedures based on manufacturer markings, and real cost differences, an expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. The principles of selection by OEM numbers contained therein can be analogously applied when choosing other components, including window system elements.

Expanding repairs within the window system

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

For drivers who are thinking about broader vehicle modifications using components from the secondary market, an interesting addition to knowledge may be the article: Tuning with used parts – how to gain performance without spending a fortune, describing a practical approach to using used components while maintaining safety and reliability.

Summary

Mercedes W203 Rear Right Door Window Regulator Lift Electric is a functional choice for users who want to restore the efficient operation of the rear right window, maintaining performance characteristics consistent with the manufacturer's factory assumptions. The element from the Window regulators and motors group allows for a technically correct repair of the window lifting system, while simultaneously reducing costs thanks to the use of a used part.