Mercedes W221 Window Lifter Front Right O/S Window Regulator Motor A2217200479

Mercedes W221 Window Lifter Front Right O/S Window Regulator Motor is a factory-original component from the Window Regulators and Motors group, designed for controlling the passenger-side window. It ensures precise window movement within the guides, stable operation in automatic mode, and proper integration with the vehicle's electrical system. This solution is dedicated to users who expect the window lifting and lowering mechanism to function correctly in accordance with the manufacturer's standards.

Specifications and technical data

• SKU: A2217200479
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217200479
• Substitutable numbers: A2217200479, A 221 720 04 79
• Location on the vehicle: Front, Right
• Category: Window Motors & Regulators

Purpose and function in the vehicle

The offered component combines a window guidance mechanism and an electric drive in a single unit, responsible for the smooth opening and closing of the front passenger-side window. Its placement in the front right door area makes it a key component for driving comfort, especially during daily city and highway use.

The window lifter works with factory window switches, the comfort closing system, and the vehicle's electrical safety features. This ensures proper operating logic – response to short and long button presses, stopping the window at a set position, and uniform movement throughout the entire range of the guides.

Construction and performance parameters

The mechanism is designed as a complete unit mounted inside the door, which facilitates service and replacement in workshop conditions. The integrated electric motor is responsible for generating torque, while the system of guides and cables transfers the movement to the window, keeping it in a stable position relative to the door frame.

This design solution provides:

• uniform lifting and lowering of the window without jerking,
• proper glass guidance in the seals,
• consistent cooperation with the factory electrical system of the Mercedes W221,
• the ability to maintain comfort functions if present in the specific vehicle model.

Benefits of using an original Mercedes component

Using an original solution dedicated to the Mercedes W221 allows for maintaining factory fitment to the door, mounting holes, and electrical harness. Proper alignment translates into reduced stress on the mechanism, a lower risk of jamming, and stable window operation over the long term.

A used component of this class is a reasonable choice for drivers who want to restore the efficiency of the window system at controlled repair costs, while maintaining the door mechanism performance culture characteristic of the Mercedes brand.

Part selection by numbers and operational aspects

When selecting a window lifter for a specific vehicle, it is worth using the manufacturer's markings and vehicle data to ensure full compatibility with the body version and equipment. A properly selected component minimizes the risk of installation problems, incorrect window positioning, or errors in the electrical system's operation.

For users interested in a broader context of using used drive components in cars, including procedures for selection by manufacturer numbers and examples of repair cost-effectiveness, the expert guide will be helpful: Why it is worth buying used gearboxes and engines – facts instead of myths. Although it mainly concerns larger assemblies, it discusses universal principles for evaluating used mechanical components.

Used window lifter – an informed choice

By choosing a used window lifter with a motor, you can significantly reduce repair costs while maintaining functionality consistent with the manufacturer's factory specifications. This solution is particularly attractive for older Mercedes W221 models, where optimizing the service budget is of great importance.

If you want to better understand how the operation of used components looks in practice and what myths most often appear around such solutions, it is worth reading the guide: Used car parts: Myths and facts you need to know. This is a good supplement to your knowledge when planning repairs using parts from the secondary market.

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 guides, control motors, or complete lifting mechanisms, check the available parts in the Mercedes Window Regulators and Motors category.