BMW G26 Window Seal Door Rear Left N/S Weatherstrip Gasket Rubber 5A5C0B5

The Left Rear Door Window Seal for BMW G26 is a precisely fitted, original body part responsible for the sealing and stable guidance of the window in the left rear door. Thanks to its factory geometry and rubber profile, it provides effective protection against water, noise, and air turbulence, improving acoustic comfort and the durability of the vehicle's interior.

Specifications and technical data

• SKU: 5A5C0B5
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 5A5C0B5
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Intended Use and Fitment for BMW G26

The presented seal is designed for installation in the left rear door of the BMW G26 series body. Its placement on the vehicle is factory-defined, which facilitates the identification of the correct part when replacing after a collision, window removal, or bodywork and painting. Using an original seal helps maintain the body line, proper window pressure, and correct operation of the lifting mechanism.

Sealing Function and Body Protection

The window seal plays a crucial role in protecting the door interior and cabin from external factors. It is responsible for:

• limiting the ingress of water and moisture into the door interior,
• reducing wind noise at higher speeds,
• stable window guidance in the track,
• protecting the window edges from mechanical damage.

By maintaining proper pressure against the window and door frame, the driving comfort and durability of upholstery elements remain at the expected BMW level.

Material and Construction Characteristics

The seal is made of profiled rubber with appropriately selected hardness, allowing for flexible adaptation to the shape of the door frame and window. The construction combines:

• a precisely formed cross-section ensuring a seal around the entire perimeter,
• window guiding zones that minimize friction and wear,
• appropriately profiled corners that facilitate installation in factory mounting points.

This solution allows for stable window operation over a long service life, without the need for additional modifications or adjustments to the part.

Condition, Installation, and Service Application

The part is a used item, sourced from disassembly, and offered as a used part, which is a cost-effective solution for post-accident repairs, replacement after mechanical damage, or eliminating leaks in the left rear door area. The original design allows for installation in place of the factory seal, maintaining the manufacturer's intended mounting points and profile routing.

In workshop practice, such a seal is used, among other things, for:

• replacing a door window after cracking or scratching,
• repairing doors after a side collision,
• eliminating leaks and excessive wind noise in the rear part of the body,
• renovating the door area in vehicles operated in harsh weather conditions.

Integration with Other BMW Window Seals and Trim Strips

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other elements from the same group, such as additional window seals, trim strips, or door frame seals, check the available parts in the BMW Window Seals and Trim Strips category.

To better plan service work on your car and understand the impact of individual systems on engine durability, it is worth reading the technical guide on engine cooling – you will find it in the article Engine Cooling System – Overheating, Repair, and Used Radiators.

Summary

The Left Rear Door Window Seal for BMW G26 is a functional body element that restores proper sealing and acoustic comfort in the rear of the vehicle. Using an original, used seal allows for a technically correct repair while maintaining factory fitment and proper window operation, which is particularly important for professional bodywork and painting repairs, as well as servicing BMW vehicles.