Audi A3 8L Rear Quarter Window Rubber Seal Gasket Left N/S 3Dr 8L3847145D

Audi A3 8L Rear Quarter Window Rubber Seal Gasket Left N/S 3Dr is an original component from the Audi window seals and trims group, designed for installation in the rear left section of the bodywork. The precisely matched profile ensures a tight fit for the window, reduces water ingress and noise, and helps maintain the structural stability of the side body in the 3-door version.

Specifications and technical data

• SKU: 8L3847145D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8L3847145D
• Substitutable numbers: 8L3847145D, 8L3 847 145 D
• Location on the vehicle: Rear, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal is dedicated to the rear left side window in the 3-door body of the Audi A3 8L generation. The component operates in the rear section of the body, where it is responsible for:

• maintaining a stable position of the window relative to the body frame,
• reducing air drafts and wind noise at higher speeds,
• protecting the window edge against mechanical damage,
• draining water from the contact area between the window and the bodywork.

Thanks to the factory profile, the seal works with the original window frame, which facilitates installation and helps maintain the consistency of the body lines.

Benefits of using an original seal

Using an original rear side window seal in the Audi A3 8L allows you to maintain factory sealing parameters and acoustic comfort. Compared to aftermarket replacements, the OEM component ensures:

• precise fit to the shape of the window frame, without the need for modifications,
• visual consistency with other seals in the vehicle,
• proper interaction with the window and side trim elements.

This is particularly important during post-collision repairs, window replacement, or gradual body restoration in older Audi A3 8L models.

Installation characteristics

The seal operates in the rear left part of the vehicle, in the side window area. The design is intended for installation in the original mounting points, which facilitates work for both professional workshops and individuals servicing the car themselves. With proper installation, it is possible to:

• minimize the risk of leaks at the contact point between the window and the body,
• maintain even pressure of the seal around the entire perimeter,
• preserve the correct geometry of the window opening.

The used condition allows for an economical repair while maintaining the original component specification, which is beneficial for budget-friendly vehicle restorations.

Audi window seals and trims – expanding the bodywork zone

If you are planning a comprehensive repair or upgrade of the window zone and adjacent body edges in your Audi and need other elements from the same group, such as additional window seals, trim strips, or edge guards, check out the available parts in the Audi window seals and trims category.

Tips for selecting used components

When choosing used body components and sealing elements, it is worth paying attention to the condition of the working surfaces, material flexibility, and the method of previous installation. Similar principles apply when selecting fuel system components – you can find more practical tips in the article Fuel dosing problems: what to look for when buying a used injection pump and fuel rails?, which discusses key aspects of safely using dismantled parts.