Volkswagen VW Fox 5Z Window Glass Front Door Left N/S Glazing AS2 5Z3845021B

Volkswagen VW Fox 5Z Window Glass Front Door Left N/S Glazing is a factory-original component from the Car windows category, designed for installation in the front left door. A properly selected window ensures correct visibility, airtightness, and proper operation with the window regulator mechanism and door seals.

Specifications and technical data

• SKU: 5Z3845021B
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5Z3845021B
• Substitutable numbers: 5Z3845021B, 5Z3 845 021 B
• Location on the vehicle: Front, Left
• Category: Car Glass

Purpose and fitment

The presented window has been designed specifically for the Volkswagen Fox 5Z generation model, intended for the front left side. This ensures the preservation of factory geometry, correct curvature, and glass thickness, which translates into proper guidance in the tracks, stable operation with the window regulator, and correct fitment against the seals.

As an OEM component, the window is structurally compatible with the original mounting points and support points in the door, which facilitates installation and minimizes the risk of improper alignment with the door frame and side mirror.

Technical properties of AS2 glass

The AS2 marking indicates the use of glass with parameters meeting the requirements for side windows in passenger vehicles. This type of glass provides:

• an appropriate level of light transmission for side windows,
• controlled mechanical resistance to impacts and operational stresses,
• a safe glass breakage pattern in the event of damage.

Thanks to this, the window maintains proper performance parameters in daily use while remaining compliant with homologation requirements for this type of body component.

Installation characteristics

The front left door window is structurally adapted to work in the driver's door tracks, taking into account the position of the mirror, the A-pillar, and the perimeter seals. The shape of the edges and the profile of the lower part of the glass are matched to the stock window regulator, which allows for smooth mechanism operation after replacement.

With correct installation, stable window guidance, reduced lateral play, and proper sealing against the body are achieved, which is important for both acoustic comfort and protecting the interior from water.

Use of a used part

The item comes from the used parts segment, which allows for economical vehicle repair while maintaining the original design specifications. In the case of side windows, it is important that the glass is free from serious structural damage, and that any signs of wear do not affect driving safety or the operation of the lifting mechanism.

Replacing a window with an original part from disassembly is particularly beneficial for repairs after side collisions, mechanical damage, or cracks resulting from body stresses.

Related categories and technical knowledge

If you are planning a comprehensive repair or upgrade of the side glazing area in your Volkswagen and need other components from the same group, such as rear side windows, passenger door windows, or additional quarter glass, check the available parts in the Volkswagen car windows category.

For users interested in a broader technical context of VW models, including structural differences between generations and parts selection, the article describing the evolution of the sporty Golf versions may be helpful – Hot-hatch legend: the evolution of the VW Golf GTI from Mk1 to Mk8 – structural changes and VW car parts. It allows for a better understanding of the brand's design philosophy and approach to component selection.