Mercedes R172 Side Window Rear Left N/S Fixed Triangle Glass AS2 A1726700200

The Mercedes R172 Rear Left Fixed Triangle Side Window AS2 is an original body part from the Automotive Glass category, designed for installation in the rear left section of the vehicle. Its fixed, triangular design ensures stable side glazing, and the appropriate AS2 glass classification guarantees proper performance parameters and compliance with homologation requirements. This is a practical solution for users looking to restore the factory functionality and aesthetics of the side body area on their Mercedes.

Specifications and technical data

• SKU: A1726700100-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1726700100
• Substitutable numbers: A1726700100, A 172 670 01 00
• Location on the vehicle: Rear, Left
• Category: Car Glass

Window Purpose and Placement

The presented window is designed for installation in the rear left part of the body, as a fixed, triangular glazing. This arrangement:

• stabilizes the vehicle's side line in the rear pillar area,
• provides additional interior lighting,
• reduces air turbulence in the rear cabin.

The fixed design without an opening function translates to simpler installation, fewer moving parts, and predictable window behavior during operation.

Technical Characteristics of AS2 Glass

Glass designated with the AS2 classification meets the light transmission and safety requirements for side windows, which is important for both regulatory compliance and driving comfort. In practice, this means:

• appropriately selected light transmission for the side visibility area,
• maintenance of proper optical parameters, limiting image distortion,
• adaptation for operation under typical passenger vehicle conditions.

Thanks to this, the window integrates well with the factory body structure of the Mercedes, maintaining consistency with other glazing elements.

Benefits of Using an Original Mercedes Side Window

Using an original side window on a Mercedes R172 ensures factory fit to the window frame and proper alignment with seals and trim elements. Key advantages include:

• precise fit to the body's geometry – reduces the risk of leaks and unwanted noises while driving,
• maintaining a consistent styling line for the vehicle's side,
• easier installation for workshops due to compliance with factory mounting points.

The used nature of the part makes it an economical solution while maintaining the original manufacturer's specifications.

Application in Body Repairs and Restorations

The Mercedes R172 Rear Left Fixed Triangle Side Window AS2 is suitable for both standard replacement of damaged glazing and more extensive bodywork and painting in the rear section of the vehicle. This part is particularly useful when:

• a window replacement is necessary after a collision or mechanical damage,
• you are restoring the side body area and want to maintain the car's original character,
• you require compatibility with factory seals and trim strips.

Choosing the correct side window directly impacts acoustic comfort, sealing, and the overall functionality of the rear passenger cabin.

Complementary Offers and Knowledge on Used Parts

If you are planning a comprehensive repair or upgrade of the side body area on your Mercedes and need other parts from the same group, such as additional side windows, rear glazing, or fixed triangular inserts, check the available parts in the Mercedes Automotive Glass category.

To better plan the selection of used body and glazing components, it is worth using practical tips for choosing original parts – the guide Best Used Car Parts – A Guide to the Most Popular Original Parts for Popular Car Brands and Models will be helpful, allowing you to consciously assess the cost-effectiveness of the purchase and the suitability of the part for a specific model.