Mercedes V177 X118 Sliding Sunroof Glass Panel Tinted AS3 A1777801200

The Mercedes V177 / X118 Sliding Panoramic Glass Roof Panel is an original component with factory AS3 tinting, designed for Mercedes vehicles. It ensures thermal and acoustic comfort inside the cabin while restoring full functionality to the sliding roof after damage or wear of the original glass.

Specifications and technical data

• SKU: A1777801200
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777801200
• Substitutable numbers: A1777801200, A 177 780 12 00
• Category: Car Glass

Technical Characteristics of the Glass Roof Panel

This panel belongs to the Automotive Glass category and is an integral part of the sliding roof system for V177 and X118 series sedan and shooting brake body types. The construction is based on laminated, tinted glass with AS3 light transmission, which reduces cabin heating and glare, improving driving comfort in sunny conditions.

The glass panel works with the factory guide and seal mechanism, ensuring proper sealing of the roof opening and stable operation throughout its full range of motion – from tilt to full retraction. By maintaining OEM geometry, it allows for precise fitting with the roof frame and other body elements.

Function and Application in Mercedes Vehicles

The sliding panoramic roof panel is responsible for:

• controlling light ingress into the vehicle's interior,
• allowing cabin ventilation without the need to open side windows,
• maintaining the roof structure's seal and rigidity,
• preserving the original aesthetic of the body line.

Replacing a damaged or leaky panel with an original component from the same group restores the sliding roof's original performance parameters without requiring modifications to the guides or roof cassette. This solution is particularly beneficial for collision repairs and mechanical glass damage.

Benefits of Using an Original Roof Glass

Using an original glass panel in the Automotive Glass category ensures:

• compliance with factory safety and glass durability standards,
• proper integration with the existing sliding and tilting mechanism,
• maintenance of the vehicle's consistent appearance, without differences in shade or tint level,
• professional repair without altering the roof structure.

For users who wish to preserve the original character of their Mercedes, choosing such a panel is a technically safe and predictable solution in terms of installation and subsequent operation.

Selection and Integration with Other Mercedes Glass

When planning a repair, it's important to consider the visual consistency of all glazing – especially in vehicles with an extensive panoramic roof. Proper selection of a component from the Automotive Glass group helps avoid differences in color and light transmission between the roof glass and the side and rear windows.

If you are planning a comprehensive repair or upgrade of the roof glazing area in your Mercedes and need other components from the same group, such as side roof windows, additional panoramic segments, or supplementary glass panels, check the available parts in the Mercedes Automotive Glass category.

Technical Support and Additional Knowledge

When designing or modernizing body and glazing systems, understanding how manufacturers develop their structures across successive model generations can be helpful. A good example is the detailed evolution of one of the most popular hot hatches – you can find more on this topic in the article Hot Hatch Legend: The Evolution of the VW Golf GTI from Mk1 to Mk8 – Structural Changes and VW Car Parts, which illustrates how changes in body and glazing construction affect vehicle operation.