Mercedes CLA C117 Coupe Glass Window Fixed Rear Door Right O/S AS2 A1177300218

The Mercedes CLA C117 Coupe Right Rear Door Fixed Window is an original body part from the Automotive Glass category, designed for installation on the right rear side of the vehicle. Thanks to its factory fit for the CLA C117 coupe body, the window ensures correct geometry, sealing, and compliance with the AS2 standard, contributing to user comfort and safety.

Specifications and technical data

• SKU: A1177300218
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1177300218
• Substitutable numbers: A1177300218, A 117 730 02 18
• Location on the vehicle: Rear, Right
• Category: Car Glass

Purpose and Fitment for Mercedes CLA C117 Coupe

The presented right rear door window has been specifically designed for the Mercedes CLA C117 Coupe body, taking into account the characteristic side profile of this model. The fixed construction of the window eliminates the need for a lowering mechanism, simplifying the door structure and reducing the number of potential failure points.

Its placement in the rear passenger side area ensures a cohesive look for the vehicle's side profile and proper adhesion to seals and trim strips. The original AS2 window guarantees the appropriate level of light transmission and compliance with homologation requirements for side windows.

Performance Parameters and the Role of AS2 Glass

AS2 class glass is designed to combine good visibility with protection against excessive interior heating. In practice, this means:

• controlled light transmission, improving comfort for rear passengers,
• adequate resistance to mechanical damage typical for side windows,
• safe fracture pattern in case of a collision, limiting the risk of serious injury.

Thanks to its factory profile, the window works with original seals and the door frame, helping to maintain proper acoustic sealing and reduce wind noise at higher speeds.

Condition, Origin, and Advantages of a Used OEM Part

This part comes from the used parts segment, which for side windows is often a sensible economic choice while maintaining high quality. Original OEM manufacturing means:

• retention of factory curves and dimensions characteristic of the CLA C117 Coupe body,
• compatibility with standard mountings and trim strips,
• no need for bodywork modifications or edge adjustments.

When replacing a side window in modern coupe bodies, precise fitting is crucial – using an original part significantly facilitates the service's work and reduces installation time.

If you are considering when it is worth choosing a used part instead of an aftermarket one, you can find practical selection criteria and specific examples in the article 5 Reasons Why a Used OEM Part is a Better Choice Than an Aftermarket Replacement.

Installation and Service Aspects

The right rear fixed door window is installed in the door frame using appropriate adhesive and sealing materials selected by the service center. In workshop practice, it is important to:

• thoroughly clean the contact surfaces in the door frame,
• use adhesives and primers consistent with the manufacturer's technology,
• check the window's adhesion to the seals around the entire perimeter after installation.

A correctly installed window helps maintain the rigidity of the vehicle's side body and the proper alignment of the door line with the fender and pillar, which is important both aesthetically and functionally.

Related Products and Technical Knowledge

If you are modernizing or repairing the side glazing in your Mercedes CLA and need other parts from the category related to this brand's body glazing, check the available parts in the Mercedes Automotive Glass category.

For a comparison of construction solutions used in other popular models, including bodywork and glazing, the material dedicated to sports hatchbacks may be helpful – you can find more information in the article The Legend of the Hot Hatch: Evolution of the VW Golf GTI from Mk1 to Mk8 – Construction Changes and VW Car Parts.