Mercedes E-Class W211 S211 Rear Right Door Window Lifter Motor Regulator

The Mercedes W211 S211 Rear Right Door Window Regulator Motor is an original part from the Electronic Control Modules and Controllers group, designed for precise control of the window mechanism in the rear right door. It ensures stable, predictable operation of the regulator, contributing to ease of use and proper window closing in daily operation.

Specifications and technical data

• SKU: A2118202442
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2118202442
• Substitutable numbers: A2118202442, W211, S211, A 211 820 24 42, Mercedes-Benz, BG
• Location on the vehicle: Rear, Right
• Category: ECUs & Computer Modules

Vehicle Application and Function

The presented window regulator motor is dedicated for installation in the rear right door, where it is responsible for driving the window lifting and lowering mechanism. As part of the window control system, it cooperates with the vehicle's electrical system and comfort modules, ensuring smooth window movement and proper response to signals from the control buttons.

Its placement on the vehicle as Rear – Right allows for unambiguous identification of the installation position, facilitating the selection of the correct component for repairs of the window system in W211/S211 series sedan or estate bodies.

Technical Characteristics and Role in the Control System

As a component from the Electronic Control Modules and Controllers category, the window regulator motor serves a dual role: driving and controlling within the comfort system for opening and closing windows. Appropriately selected electrical and mechanical parameters ensure:

• stable torque for operation with window guides,
• repeatable window speed across the full range,
• cooperation with the system's factory safeguards (e.g., overload protection).

Thanks to its construction compliant with the vehicle manufacturer's requirements, the component maintains compatibility with the factory wiring harness and comfort control logic, which reduces the risk of communication errors between modules.

Benefits of Using an Original Module

Using an original window regulator motor in the rear right door helps maintain the integrity of the entire window control system. In practice, this means:

• secure fit to the mounts and guides in the door,
• proper cooperation with the window control switches,
• maintenance of the comfort system's factory operating parameters.

For the user, this translates to predictable window operation, absence of unwanted mechanism noise, and reduced risk of repeated service interventions in this body area.

Component Condition and Service Application

The offered window regulator motor is used, making it an attractive service solution when a damaged drive needs replacement while maintaining reasonable repair costs. This type of component is particularly useful for:

• repairs of the window system after mechanical or electrical failure,
• restoring full door functionality after a collision,
• servicing comfort systems in intensively used vehicles.

By retaining its original specifications, installation is similar to the factory process, without the need for modifications to the wiring or door mounts.

Related Electronic Modules and Service Knowledge

In modern vehicles, window control systems are part of a broader electronic architecture, including numerous comfort modules and body controllers. For a better understanding of how such systems work and how to diagnose faults in electronic modules, it is worth consulting specialized materials. Practical tips for working with comfort modules, controllers, and multimedia systems can be found in the article on servicing iDrive systems and electronic modules in BMW vehicles using dismantled parts, which discusses universal principles for handling used controllers.

If you are planning a comprehensive repair or upgrade of the window and comfort control area in your Mercedes and need other parts from the same group, such as door modules, comfort controllers, or other systems managing the vehicle's electrical equipment, check the available parts in the Mercedes Electronic Control Modules and Controllers category.