Mercedes W204 Saloon Sunroof Sliding Roof Mechanism Window Glass A2047801529

The sunroof mechanism with glass for Mercedes W204 sedan is an original roof component designed for the C-Class W204 generation Saloon models. It ensures the proper operation of the sliding roof, stable glass guidance, and a tight seal when closed, contributing to user comfort and safe vehicle operation. By maintaining the factory design, the component integrates perfectly with the vehicle's body and installation, allowing for efficient replacement of a damaged mechanism.

Specifications and technical data

• SKU: A2047801629
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047801629
• Substitutable numbers: A2047801629, A 204 780 16 29, A2047801529, A 204 780 15 29, A2047800440, A 204 780 04 40, BG
• Category: Other Exterior Parts & Accessories

Purpose and Function in Mercedes W204

The presented sunroof mechanism with glass has been specifically designed for the W204 generation C-Class sedan body. It is responsible for:

• smooth sliding and tilting of the roof glass,
• stable guidance of the glass in the tracks,
• proper sealing of the roof opening when closed,
• maintaining the factory geometry and fit with the roof panel.

Thanks to the use of the original design, compatibility with the factory sunroof control and other components of the roof system in the Mercedes W204 Saloon is maintained.

Construction and Technical Features of the Sunroof Mechanism

The sunroof mechanism with glass includes a set of guides and a glass panel adapted for installation in a sliding roof. The construction was developed by the vehicle manufacturer with the aim of:

• precise guidance of the glass in the longitudinal and transverse axes,
• resistance to typical operational loads (wind, vibrations, temperature changes),
• maintaining adequate pressure of the glass against the seals,
• consistency with the factory water drainage system from the sunroof frame.

The original design solution allows for maintaining the proper rigidity of the entire roof module and reduces the risk of leaks and noise during driving.

Benefits of Using an Original Used Part

Using an original sunroof mechanism with glass in a Mercedes W204 sedan offers a number of practical benefits:

• Factory Fit – the part comes from the same production line as other roof components, facilitating installation and adjustment.
• Visual Consistency – the glass maintains the correct shape and line relative to the roof panel, which is important for the vehicle's aesthetics.
• Reduced Adaptation Work – no need for modifications to mounts or guides, which is typical for universal aftermarket parts.
• The ability to restore full sunroof functionality after a mechanism failure or glass damage.

A used part allows for economical repair while maintaining the original construction specification of the vehicle, which is important for both durability and subsequent resale of the car.

Part Selection by Numbers and Vehicle Integration

The sunroof mechanism with glass has a dedicated OEM part number and associated replacement numbers, which facilitates unambiguous identification and selection for a specific Mercedes W204 Saloon equipment version. Before purchasing, it is advisable to compare the markings with the vehicle documentation or the removed part to confirm full compatibility. This way, you minimize the risk of installation problems and ensure proper cooperation with the existing electrical system and roof control.

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

Technical Support and Vehicle Development

Replacing the sunroof mechanism with glass is a good opportunity to comprehensively assess the condition of the roof system – seals, water drains, and controls. For users interested in a broader perspective on the design differences between standard and sport versions, an interesting addition to knowledge may be an article describing the solutions used in high-performance models, available here: Audi RS vs Other Models – What Lies Under the Hood and Chassis?.

By consciously selecting original roof components, you can keep your car in good technical condition, maintaining the comfort of using the sunroof and consistency with the vehicle's factory specifications.