BMW E87 Fixed Door Window Glass AS2 Rear Left N/S 7070373

The BMW E87 Left Rear Door Triangle Window AS2 is a precisely fitted component from the automotive glass category, designed for the rear left part of the body. Thanks to its factory shape and appropriate profile, the triangular window ensures proper sealing, stable mounting, and an aesthetic finish for the side area of the BMW 1 Series E87 body. This is a practical solution for users looking for a proven, used component with retained functionality.

Specifications and technical data

• SKU: 7070373
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7070373
• Substitutable numbers: 51347070373, 7070373
• Location on the vehicle: Rear, Left
• Category: Car Glass

Intended Use and Fit for BMW E87

The left rear triangular window has been specifically designed for the BMW E87 door construction, ensuring a proper fit with the door frame and seals. Its placement in the rear left part of the vehicle guarantees compatibility with the factory body layout, without the need for modifications or forcing the element into place.

By using appropriate glass geometry and edge profiling, the window works with original mountings and trims, facilitating installation and reducing the risk of unwanted stress on the glass after fitting.

Technical Characteristics of the AS2 Triangular Window

The AS2 designation indicates a specific automotive glass standard, ensuring an appropriate level of light transmission and user safety. This type of glass is designed to meet homologation requirements regarding durability, resistance to mechanical damage, and maintaining clarity under typical operating conditions.

In practice, this means the left rear triangular window for the BMW E87 provides:

• stable shape retention within the door frame,
• adequate rigidity when closing and opening the door,
• proper cooperation with seals and interior trim elements.

Condition, Origin, and Benefits of Choosing a Used Window

The offered window comes from the used BMW parts segment, allowing for optimized repair or replacement costs while maintaining compliance with factory specifications. Choosing an original, used triangular window is particularly beneficial when you want to preserve the cohesive appearance of the bodywork and match existing car body elements.

A used component also represents a sensible compromise between price and quality – especially for side windows, where fit and correct seating in the door are crucial. Furthermore, using a part originating from the same brand minimizes the risk of installation problems.

Practical Application and Replacement Scenarios

The left rear triangular window for the BMW E87 is suitable for situations such as:

• mechanical damage to the window (cracks, breakage, chips),
• the need for replacement after an attempted break-in or side collision,
• restoring the vehicle to full functionality after body and paint repairs.

The precise fit for the rear left part of the body facilitates workshop work and reduces installation time, which is important for both service centers and individual users who value efficient repair completion.

Compatibility by OEM Number and More Information

To ensure the window's compatibility with a specific BMW E87 version, it is advisable to use the OEM number and interchangeable numbers visible in the technical specifications. This allows verification of compatibility with the vehicle's body configuration and production year, which is particularly important when ordering items from the automotive glass category.

If you are looking for other BMW automotive glass for your car, check out our dedicated offer: BMW automotive glass.

You can find more information on when it's worth choosing a used part versus an aftermarket or factory part in the Global Parts guide: Original, Aftermarket, or Used – Which Car Parts Are Most Cost-Effective?.

Summary

The BMW E87 Left Rear Door Triangle Window AS2 is a functional, original body part designed for the rear left section of the vehicle. It ensures proper sealing, an aesthetic finish for the side body area, and compatibility with the factory BMW E87 door construction. It is a sensible choice for drivers and workshops aiming to restore the vehicle's full functionality and cohesive appearance by using a used window with retained functionality.