Mercedes X118 Rear Window Trunk Tailgate Glass Glazing AS3 Tinted A1187400400

Mercedes X118 Rear Window Trunk Tailgate Glass Glazing AS3 Tinted is an original component from the Car windows group, designed for installation in the rear part of the vehicle body. It ensures a consistent fit to the body lines, proper structural rigidity of the tailgate, and comfortable visibility thanks to the factory tinting. This is a solution for users who expect a solid, proven component instead of random replacements.

Specifications and technical data

• SKU: A1187400400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1187400400
• Substitutable numbers: A1187400400, A 118 740 04 00
• Location on the vehicle: Rear
• Category: Car Glass

Technical characteristics of the Mercedes X118 rear window

The offered rear tailgate window has been designed specifically for the X118 body type, maintaining factory curves and geometry. This ensures proper adhesion to the tailgate frame, tightness of connections, and correct interaction with seals and mounting elements. Tinted glass reduces interior heating, improves ride comfort for rear passengers, and increases protection of transported luggage from outside view.

The element belongs to the Car windows group, which means it meets rigorous requirements regarding passive safety, impact resistance, and appropriate optical clarity class. The use of glass marked with the AS3 class is associated with a specific level of light transmission, adapted for use in the rear part of the vehicle.

Purpose and placement on the vehicle

The presented window is intended for installation in the rear zone of the body, as tailgate glazing. Placement in this area requires maintaining appropriate rigidity and resistance to torsion, as the tailgate operates with every opening and closing. The window construction is adapted to work with factory hinges, actuators, and the lock, which facilitates proper alignment and adjustment.

Proper fitment of the rear window is important not only for visibility but also for the vehicle's aerodynamics and acoustics. A correctly seated window reduces air noise and minimizes the risk of leaks that could lead to water or contaminants entering the trunk interior.

Benefits of using an original rear window

Using an original rear window in a Mercedes X118 allows you to maintain the vehicle's factory parameters in terms of safety, comfort, and aesthetics. Key advantages include:

• consistent fit to the body and factory mounting points,
• maintenance of the appropriate tint and clarity class,
• compatibility with original seals and tailgate equipment,
• maintaining a uniform appearance of the rear part of the vehicle.

For users who want to restore the vehicle to a condition close to factory after window damage, choosing such an element is a practical and technically justified solution. Tinted rear glass also supports interior thermal comfort, which is noticeable especially in the summer season.

Condition of the element and practical assembly tips

The offered window comes from the segment of used components, which allows combining reasonable cost with maintaining the manufacturer's original specification. Before installation, it is recommended to thoroughly prepare the contact surface, check the condition of the seals, and use appropriate adhesives and mounting materials consistent with the technology used for bonded windows.

Replacing the rear window in the tailgate should be carried out by a workshop with experience in working with automotive glass elements. Proper alignment, even pressure, and maintaining appropriate assembly gaps have a direct impact on the durability of the connection and the tightness of the entire system.

Configuration expansion – Mercedes car windows

If you are planning a comprehensive repair or modernization of the rear body zone in your Mercedes and need other elements from the same group, such as side glazing, additional ventilation windows, or other glass panes, check the available parts in the Mercedes car windows category.

More about used glass parts

When choosing a used window, many people have doubts regarding the durability and safety of such components. To better understand how to assess the condition of aftermarket elements and what to pay attention to when buying, it is worth reaching for reliable sources of knowledge. The article Used car parts: Myths and facts you need to know, which clarifies the most common concerns related to purchasing used components, may be helpful.