Mercedes CLA X117 Quarter Glass Door Rear Left N/S Window Black A1177300355

Mercedes CLA X117 Quarter Glass Door Rear Left N/S Window Black is an original body component from the Car windows category, designed for installation in the rear left part of the door. This used quarter glass allows for maintaining a consistent side body line style while ensuring proper structural rigidity and sealing. It is a practical solution for Mercedes CLA X117 owners who want to restore the full functionality and aesthetics of the vehicle's side section.

Specifications and technical data

• SKU: A1177300355
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1177300355
• Substitutable numbers: A1177300355, A 117 730 03 55
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Car Glass

Purpose and body fitment

The presented quarter glass is designed for installation in the rear left door section, precisely filling the space in the side body area. Its placement in the rear driver-side door area ensures proper interior illumination and maintains the factory glazing line characteristic of the CLA X117 model.

Proper matching of the glass shape and profile to the door structure reduces the risk of stress, leaks, and unwanted noise while driving. This is particularly important in premium vehicles, where high body refinement and stability of glazed elements are expected.

Visual characteristics and color

The glass is finished in black, allowing for a harmonious blend with factory seals, frames, and side pillars. The dark finish positively influences the visual perception of the entire side of the body, emphasizing the dynamic coupe line typical of the CLA X117.

This color scheme also helps reduce light reflections and improves consistency with other glazing elements, which is important when replacing a single window in an already used vehicle.

Functional utility and benefits of installation

Installing the quarter glass in the rear left door restores full glazing functionality after potential mechanical damage or bodywork. This component:

• stabilizes the door frame structure in the rear section,
• contributes to the correct routing of seals and trim strips,
• limits the ingress of water and contaminants into the door interior,
• maintains the proper level of visibility in the vehicle's side zone.

By using an original component from dismantling, dimensional and mounting compatibility with the factory Mercedes design is maintained, which facilitates service work and shortens repair time.

Component condition and use in repairs

The offered glass comes from the used parts segment, making it a reasonable choice for post-accident repairs, bodywork corrections, or replacing individual glazing elements. A used component allows for significantly lowering the cost of restoring body efficiency while maintaining original origin and proper fitment to the model.

In the case of body and paint work in the rear left part of the vehicle, using a factory quarter glass facilitates the correct setting of gaps, guides, and seals, which translates into door stability and acoustic comfort inside the cabin.

Repair expansion and selection of other windows

If you are planning a comprehensive repair or upgrade of the side glazing zone in your Mercedes and need other elements from the same group, such as door windows, quarter glasses, or additional side glazing, check the available parts in the Mercedes car windows category.

More practical information on how to effectively use used body and glazing elements in body repairs can be found in the blog article Replacing body parts with used ones – can dismantled body parts look like new?, which will help you consciously plan the scope of work and select the right components for your Mercedes.