BMW X3 E83 Rear Side Fixed Glass Black Window AS3 Left N/S 3401817

BMW X3 E83 Rear Side Fixed Glass Black Window AS3 Left N/S is an original body component from the Car windows group, designed for installation in the rear left section of the vehicle. Thanks to its factory fit for the BMW X3 E83, it ensures proper sealing, stable mounting, and a consistent look for the side body area. This is a practical solution for replacing a damaged quarter glass or for professional rear door repairs.

Specifications and technical data

• SKU: 3401817
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3401817
• Substitutable numbers: 51363401817, 3401817
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Car Glass

Purpose and fitment for BMW X3 E83

The presented quarter glass is designed specifically for the BMW X3 E83 model and is installed in the rear left door area. Its placement in the rear part of the body contributes to proper interior illumination, maintaining visibility in the side zone, and preserving the original window line characteristic of this model.

The component belongs to the Car windows group, meaning it meets the requirements regarding shape, thickness, and mounting method specified by the vehicle manufacturer. As a result, after proper installation, factory gaps are maintained, and the operation of door mechanisms and seals remains consistent with the design specifications.

Technical and visual characteristics

The quarter glass mounted on the rear left side serves as a fixed glazing unit that works in conjunction with the main door window. The applied AS3 classification indicates a glass with a higher level of tinting, which helps reduce interior heating and improves comfort for rear-seat passengers.

The black frame ensures an aesthetic transition between the glass and the bodywork, masking mounting edges and seals. This color choice is consistent with the factory finish of the BMW X3 E83, ensuring that after replacement, the component integrates harmoniously into the vehicle's side line without the visual effect of an "add-on" from a different model.

Benefits of using an original body glass

Choosing an original body glass for the BMW X3 E83 allows you to maintain compliance with the body design and safety parameters provided by the manufacturer. The fixed glazing in the rear part of the body contributes to:

• maintaining appropriate structural rigidity in the rear door area,
• proper interaction with seals and trim strips,
• a consistent look of the side window line, without differences in shade or shape,
• thermal and optical comfort for passengers thanks to the AS3 tinting.

The used component is a cost-effective solution while maintaining original origin and fitment. This is particularly important for post-accident repairs, where both quality and the economics of the entire process are significant.

Installation zone and practical service application

The rear left quarter glass is installed in the side body area, within the rear door. In service practice, it is most often replaced after mechanical damage, side collisions, or during bodywork and paint interventions in this area. Proper installation requires maintaining the cleanliness of the contact surface, correct seating in the frame, and checking the operation of the seals after the work is completed.

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

How to effectively assemble used body components

When replacing a body glass in a BMW X3 E83, it is worth verifying the condition of other elements in this area – seals, trim strips, or mounts. This allows you to reduce service downtime and complete the repair in one cycle. You can read about the principles of conveniently assembling original used components, including windows and other body parts, in the article Comprehensive supply: from the engine to the smallest clip – how to assemble used car parts in one place?.

If you are considering whether it is better to choose new or used OEM parts for windows and other body components, the comparison described in the material New or used? A comparison of costs and quality of car parts, where the differences in costs, durability, and profitability of repairs in the long term are discussed, may be helpful.