Mercedes-Benz E S211 W211 Rear Right Door Window Regulator Lifter A2117300746

The Mercedes S211 W211 Rear Sunroof Mechanism is an original part from the Window Regulators and Motors group, designed for the rear, right side of the body. Specifically engineered for Mercedes E-Class W211/S211 models, it ensures precise guidance and stable operation of the rear sunroof section, restoring the factory system's proper functionality.

Specifications and technical data

• SKU: A2117300446
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2117300746
• Substitutable numbers: A2117300446, A 211 730 04 46, A2117300746, A 211 730 07 46, EM
• Location on the vehicle: Rear, Right
• Category: Window Motors & Regulators

Purpose and Function of the Mechanism

The rear sunroof mechanism is responsible for the controlled movement and support of the rear part of the roof panel on the right side of the vehicle. Within the sunroof system, it plays a crucial role in:

• stable guidance of the panel within the tracks,
• maintaining the correct opening and closing geometry,
• ensuring a watertight seal through proper closure of the rear edge,
• smooth cooperation with other elements of the roof system.

Thanks to its precise fit for the specific Mercedes platform, the mechanism integrates with the factory control system without requiring modifications to the roof structure.

Compatibility and Body Fitment

This component is designed for installation in the rear – right side area, guaranteeing proper alignment with the roof structure and sunroof tracks in both the estate and sedan versions of the E-Class of this generation. Its placement on the vehicle is clearly defined, simplifying part selection during repairs or replacement of a damaged module.

Its original Mercedes origin ensures adherence to factory operating parameters, such as range of motion, sliding speed, and compatibility with sensors and the comfort control unit.

Performance Characteristics and Installation

As a part from the Window Regulators and Motors category, the rear sunroof mechanism operates under conditions similar to those of side window regulators – requiring precise geometry, appropriate torque, and resistance to variable loads. The design intended by the vehicle manufacturer ensures:

• seamless cooperation with the factory sunroof motor,
• adequate mounting rigidity within the roof structure,
• serviceability and adjustment in accordance with Mercedes workshop procedures.

The product is offered as a used original part, allowing for economical repairs while maintaining compliance with the vehicle's factory specifications.

Practical Application and Benefits of Replacement

Replacing the rear sunroof mechanism is recommended in cases of symptoms such as uneven closing, jamming during panel movement, friction noises, or difficulties in maintaining the sunroof's position. Using an original Mercedes component allows for:

• restoring the correct operation of the rear sunroof section,
• minimizing the risk of leaks and noise at higher speeds,
• maintaining compatibility with the factory safety and comfort system.

For workshops specializing in the Mercedes brand, this solution aligns with the manufacturer's intentions, facilitating diagnostics and subsequent service operations.

If you are planning a comprehensive repair or upgrade of the roof area in your Mercedes and require other parts from the same group, such as tracks, drives, or sunroof control modules, check the available parts in the Mercedes Window Regulators and Motors category.

Technical Support and Service Knowledge

When planning more extensive service work, it is also worth considering other vehicle wear parts. Practical tips on which car components most frequently require replacement and how to optimally plan repair budgets can be found in the article TOP 10 Most Frequently Replaced Parts in Your Car. This will help you better coordinate the sunroof mechanism replacement with other service activities.

Additionally, if you are interested in a broader context of typical operational issues in modern designs, it is worth familiarizing yourself with the material dedicated to BMW 3 Series powertrains, which discusses the potential costs of service neglect: Faulty BMW E90 Engines: Find Out What Can Ruin Your Budget!. This provides a good supplement to understanding how regular maintenance and proper part selection affect the durability of the entire vehicle.