Mercedes W177 Window Glass Rear Left N/S Door Quarter Tinted AS3 A1777300300

The Mercedes W177 Rear Left Side Window AS3 is an original part from the automotive glass category, designed for installation in the rear left part of the vehicle body. Glass marked with AS3 class provides an appropriate level of tinting and light filtration, enhancing driving comfort and vehicle aesthetics.

Specifications and technical data

• SKU: A1777300300
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777300300
• Substitutable numbers: A1777300300, A 177 730 03 00, BG
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and Fitment

The presented window has been specifically designed for the W177 body type, with a precise fit for the rear left section of the vehicle. Its placement in the rear zone of the vehicle improves protection for rear seat passengers and the structural stability of the side body.

Thanks to its factory profile, the glass works seamlessly with original seals and guides, minimizing the risk of leaks, creaks, or unwanted vibrations during driving.

AS3 Glass Characteristics

Glass marked with the AS3 symbol is a solution with an increased level of tinting, which reduces interior heating and improves the comfort of rear seat passengers. This type of glass also helps reduce glare and enhances cabin privacy.

In practice, this means:

• better protection against solar radiation,
• more stable interior temperature,
• an aesthetically pleasing, cohesive look of the vehicle's side profile.

Benefits of Using an Original Side Window

Choosing an original side window for a Mercedes translates into a range of practical installation and usage benefits. The part retains its factory geometry, simplifying service work and reducing replacement time. The appropriate thickness and structure of the glass contribute to proper noise dampening and the stability of the vehicle's side body.

Key advantages include:

• precise fit to the bodywork – no need for modifications or adjustments to mountings,
• visual consistency with the vehicle's other windows,
• maintenance of factory safety and acoustic comfort parameters.

Condition and Service Application

This window comes from secondary circulation, making it a sensible choice for post-accident repairs, replacement after mechanical damage, or as part of an economical vehicle renovation. This type of part allows for reduced repair costs while maintaining original manufacturer specifications.

This type of solution is particularly recommended in situations where combining compliance with factory standards with budget control is a priority.

Other Mercedes Automotive Glass

If you are also looking for other Mercedes automotive glass for your car, check out our dedicated category: Mercedes automotive glass. There you will find a wide selection of glazing elements tailored to various models of this brand.

Service Knowledge and Advice

During bodywork repairs, it is also worth paying attention to the condition of the cooling system, especially during the summer when the vehicle operates at higher temperatures. You can read about the optimal approach to regenerating and selecting used components in the guide: Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings. This will help you plan comprehensive vehicle servicing, combining body part replacement with checks of key mechanical systems.