BMW X1 E84 Window Glass Fixed Rear Right Door O/S Tinted Black AS3 2990398

The BMW X1 E84 Right Rear Door Triangle Window AS3 is an original part from the car glass category, designed for installation in the rear right side of the body. This used triangular window helps maintain the factory body line, proper body rigidity, and correct side visibility, while offering cost-effective repair solutions.

Specifications and technical data

• SKU: 2990398
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2990398
• Substitutable numbers: 51352990398, 2990398, 51479207906, 9207906
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Car Glass

Intended Use and Fitment for BMW X1 E84

The presented triangular window is specifically designed for the BMW X1 E84 model and is installed in the rear right side of the vehicle. This ensures proper alignment with the door frame and seals, minimizing the risk of unwanted wind noise and leaks. The part comes from the BMW OE line, signifying compliance with the manufacturer's factory standards regarding geometry, glass thickness, and mounting method.

Technical Characteristics and Construction

This window belongs to the car glass category and is manufactured to the AS3 standard, which translates to a specific level of tinting and light filtration compliant with homologation requirements. The black edge of the glass provides an aesthetic connection with the seal and door trim elements, while also concealing the bonding area from both the interior and exterior.

Its placement in the rear right side of the body contributes to the stabilization of the door frame and enhances the overall structural rigidity. Thanks to its factory profile, the window integrates with original mountings, simplifying installation and reducing the need for additional bodywork or upholstery modifications.

Benefits of Using an Original Triangular Window

Using an original triangular window for the BMW X1 E84 offers several practical benefits:

• Consistent Body Appearance – maintaining the factory styling of the side window line and door frames.
• Correct Glass Geometry – precise fit with original seals and trim strips.
• Appropriate Tinting – visual comfort for rear seat passengers and reduced interior heating.
• Compatibility with Factory Mounting Points – faster and more predictable installation.

This used part allows for economical vehicle repair after glass damage, while maintaining parameters close to factory-fitted components. It is a sensible choice for post-accident repairs, replacements after breakage, or bodywork restoration.

Color and Body Integration

The black edge of the window complements the typical trim and seals of the BMW X1 E84, creating a visually cohesive side profile. This finish facilitates integration with various body paint colors and enhances the aesthetic connection between the glass and body elements. Consequently, replacing a damaged window with this part does not disrupt the vehicle's overall appearance.

Used Condition and Practical Aspects

This window is a used part, sourced from disassembly, which helps reduce repair costs compared to a new component while retaining its original origin. This solution is particularly beneficial for repairing vehicles several years old, where a balance between functionality and a reasonable budget is key. If you are considering whether new or used parts are a better choice for your situation, the following article may be helpful: Car Parts – New or Used? Comparing Costs, Quality, and Durability.

Related BMW Car Glass

If you are looking for other BMW car glass for your vehicle, explore our dedicated offer, where you will find matching side, rear, and other variants: BMW car glass. This will allow you to easily assemble a set of glass components that meet the manufacturer's requirements and the specific characteristics of your model.