Mercedes W211 Sunroof Sliding Roof Mechanism Assembly Window Glass A2117801929

Mercedes W211 Sunroof Sliding Roof Mechanism Assembly Window Glass is a complete, used solution designed for installation in the front part of the roof. This component is responsible for the smooth sliding and tilting of the sunroof glass, ensuring cabin ventilation comfort and the proper operation of the factory sunroof. By maintaining the original Mercedes design, the product guarantees precise fitment to the bodywork and correct interaction with existing rails and seals.

Specifications and technical data

• SKU: A2117801929
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2117801929
• Substitutable numbers: A2117801929, A 211 780 19 29, A2117800629, A 211 780 06 29, BG
• Location on the vehicle: Front
• Category: Other Exterior Parts & Accessories

Purpose and function in the vehicle

The presented Mercedes W211 Sunroof Sliding Roof Mechanism Assembly Window Glass is intended for installation in the Mercedes E-Class W211 generation model in the front roof area. It is responsible for:

• guiding and stable positioning of the sunroof glass during sliding,
• executing the tilt function in ventilation mode,
• maintaining the proper geometry of the glass relative to the roof skin,
• reducing stress in the glass mounting zone.

Thanks to the preservation of the original geometry of the rails and mounting points, integration with the factory roof structure proceeds without the need for bodywork modifications.

Construction and technical features of the mechanism

The set includes the sliding mechanism assembly along with the sunroof glass, prepared for installation in the front part of the vehicle. The construction is based on a system of rails and sliding elements working with the sunroof drive, which enables smooth opening and closing of the glass.

Key technical features include:

• original construction consistent with factory Mercedes solutions,
• maintained compatibility with the factory sunroof drive,
• properly selected sunroof glass matched to the W211 roof contour,
• arrangement of mounting points allowing for installation in the front zone without modifications.

Such execution allows for consistent operation of the entire sunroof system and reduces the risk of leaks resulting from improper fitment.

Condition, fitment, and service application

The item comes from disassembly and is offered as a used part, which is a cost-effective solution for sunroof repairs in vehicles that have been in operation for many years. Replacing the complete mechanism with glass is particularly recommended in situations where:

• mechanical damage to the rails or glass frame has occurred,
• there are problems with smooth sliding or closing of the sunroof,
• simultaneous replacement of the glass and mechanism is necessary due to collision or corrosion of load-bearing elements.

Selecting the part is facilitated by the presence of the original manufacturer's marking and assignment to a specific body model, which allows for trouble-free fitment to the correct version of the Mercedes W211.

Benefits of using the original sunroof mechanism

Using a complete, original Mercedes W211 Sunroof Sliding Roof Mechanism Assembly Window Glass brings a number of practical service and utility benefits:

• preservation of factory geometry and tightness within the roof area,
• reduction of repair time thanks to the installation of a complete assembly instead of regenerating individual components,
• consistent cooperation with the existing drive and electrical control,
• maintenance of acoustic comfort and proper cabin ventilation.

For workshops and users, this means stable sunroof operation after repair and a lower risk of needing further adjustments.

Related components and vehicle configuration development

If you are planning a comprehensive repair or upgrade of the roof area in your Mercedes and need other components from the same group, such as rails, sunroof frames, or additional mounting modules, check the available parts in the Other Mercedes category.

In the case of expanding or modifying high-performance vehicles, information about structural differences in sports versions of cars may also be useful – you will find them in the article Audi RS vs other models – what is hidden under the hood and chassis?, which discusses, among other things, the impact of changes in the drivetrain and chassis on the selection of spare parts.