Mercedes S205 Window Glass Rear Left Door N/S Tinted Glazing AS3 A2057300755

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes S205 Window Glass Rear Left Door N/S Tinted Glazing is an original component from the Car Windows category, designed for installation in the rear left door of Mercedes W205 series vehicles. The AS3-rated tinted glass provides increased driving comfort by reducing interior heating and improving passenger privacy.

Specifications and technical data

• SKU: A2057300755
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057300755
• Substitutable numbers: A2057300755, A 205 730 07 55
• Location on the vehicle: Rear, Left
• Category: Car Glass

Purpose and fitment

The presented window glass is specifically designed for installation in the rear left section of the body, in the side doors of Mercedes W205 class vehicles. The dedicated placement on the vehicle allows for maintaining the factory glazing geometry, correct body lines, and door system tightness.

Thanks to a design consistent with the manufacturer's solutions, the glass works with factory guides, seals, and the lifting mechanism, which facilitates installation and reduces the risk of operational issues after replacement.

Characteristics of AS3 tinted glass

The AS3 designation refers to the type of tinting and light transmission used in side and rear windows. In practice, this means:

• increased protection against solar radiation,
• reduction of vehicle interior heating,
• improved comfort for passengers in the rear seat,
• better protection of transported luggage from outside view.

Tinted glass also contributes to a more cohesive, aesthetic appearance of the side of the body, especially when combined with the vehicle's factory optical package. For the user, this means a practical combination of functionality and aesthetics without interfering with the body structure.

Component condition and installation aspects

The glass is offered as a used component, which allows for an economical replacement of damaged glazing while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for post-accident repairs or localized renovation of the side body section.

During installation, it is recommended to:

• check the condition of the door guides and seals,
• verify the correct setting of the window lifting mechanism,
• thoroughly clean the contact surfaces with the seals to maintain tightness.

A properly installed window ensures the correct operation of the lowering and lifting mechanism, as well as stable seating in the door frame.

Practical application and benefits of choosing a used part

Replacing the side window in the rear door is important not only from the point of view of safety but also acoustic and thermal comfort inside the cabin. Using original glazing with AS3 tinting allows for maintaining visual consistency with the other windows and the performance parameters intended by the manufacturer.

By choosing a used component, you can significantly reduce repair costs while maintaining factory fitment. You can find more about the differences between new and used parts, their durability, and cost-effectiveness in the article: Car parts – new or used? We compare costs, quality, and durability.

Expanding repairs within car windows

If you are planning a comprehensive repair or upgrade of the side glazing area in your Mercedes and need other components from the same group, such as additional side windows, front door windows, or rear windows, check the available parts in the Mercedes Car Windows category.

Such an approach allows you to restore the visual consistency of the entire glazing in one stage, optimize service work time, and reduce vehicle downtime. For the user, this means a more predictable repair process and easier planning for the further operation of the car.