Mercedes-Benz S W220 1 Rear Left Door Window Regulator Lifter Electric Motor

Mercedes-Benz S W220 1 Rear Left Door Window Regulator Lifter Electric Motor is a precision component from the Window Regulators and Motors group, designed for stable operation in demanding conditions. This used component ensures a factory-fit for the rear left body section, enabling efficient and predictable operation of the electric window control.

Specifications and technical data

• SKU: A2207302346-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2207302346
• Substitutable numbers: A2207302346, A 220 730 23 46, N/S, EM
• Location on the vehicle: Rear, Left
• Category: Window Motors & Regulators

Purpose and function in the Mercedes-Benz S W220

This electric window regulator is designed for installation in the rear left section of the Mercedes S-Class W220 generation sedan. It is responsible for the smooth raising and lowering of the window, working in conjunction with the factory door controls and the vehicle's electrical system. The integrated electric motor provides the necessary torque, and the design, tailored to the specific position on the vehicle, minimizes the risk of stress and improper operation of the mechanism.

Construction and performance parameters

The regulator combines the window guide mechanism and the electric drive into a single unit, which simplifies installation and maintenance. This solution, dedicated to the rear left side of the body, allows for:

• stable window guidance in the door tracks,
• precise window positioning during closing,
• consistent cooperation with factory window control switches.

Thanks to a design developed specifically for the S-Class W220, the component maintains the correct operating geometry, which reduces noise, movement resistance, and wear on other door components.

Benefits of using an OEM component

Choosing a used window regulator with a motor for the Mercedes S-Class W220 allows you to maintain the original operating characteristics of the window mechanism while optimizing repair costs. This component group:

• maintains factory mounting points in the door,
• is prepared for integration with the original wiring harness,
• allows for replacement without the need to modify the door structure.

This is a practical solution for repairs following mechanical damage, mechanism seizure, or issues with window operation in the rear left part of the vehicle.

Professional selection by OEM and replacement numbers

The element belongs to the Mercedes brand and has an assigned OEM part number and replacement numbers, which facilitates precise identification and selection of the correct variant for a specific equipment version. Combined with the placement on vehicle designation, this minimizes the risk of purchasing an incorrect regulator and speeds up the service process.

Condition, installation, and service application

The offered window regulator with motor is used, making it a reasonable choice for maintenance repairs and restoring the functionality of the rear left window after a failure. The design, intended for a specific Mercedes model, allows for installation in place of the factory element, while maintaining original window guidance and compatibility with the electrical system.

Additionally, the SKU designation facilitates order processing and unambiguous product assignment in warehouse systems, which is important for professional service centers and workshops.

If you are planning a comprehensive repair or upgrade of the side window and door area in your Mercedes and need other elements from the same group, such as lifting mechanisms, control motors, or complete window guide modules, check the available parts in the Mercedes Window Regulators and Motors category.

To better plan your repair budget and make an informed decision on when it is worth choosing used components, it is worth consulting the expert guide Original, replacement, or used – which car parts are the most cost-effective?, where you will find a comparison of costs, quality, and fitment based on OEM designations.

If you are interested in the broader context of using used drive components and want to learn about selection procedures based on manufacturer designations, practical examples, and repair cost ratios, read the article Why it is worth buying used gearboxes and engines – facts instead of myths, which helps to better assess the profitability of using parts from the secondary market in advanced vehicles such as the Mercedes S-Class.