BMW E66 Inner Rear Left Door Window Channel Seal Strip Cover N/S

The BMW E66 Rear Left Window Seal Strip is an original body part from the Window Seals and Strips category, designed for installation in the rear left door. It ensures a tight seal for the window, reduces wind noise, and helps maintain the window's stable position in the runner, contributing to acoustic comfort and proper operation of the lifting mechanism.

Specifications and technical data

• SKU: 7044147
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7044147
• Substitutable numbers: 51357044147, 7044147, AS
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Door Seal

The presented window seal strip has been specifically designed for the rear left body area of the BMW 7 Series E66. This component is responsible for:

• Sealing the contact between the window and the door frame in the rear left part of the vehicle,
• Preventing water and dirt from entering the door interior,
• Reducing air noise at higher speeds,
• Stabilizing the window in the runner during raising and lowering.

Thanks to its proper profile and fit for the specific body model, the rear left window seal strip helps maintain the factory-standard operation of the window mechanism and improves overall driving comfort.

Construction and Fit for BMW E66

This seal belongs to the group of body elements responsible for the sealing and guidance of side windows. Its shape and geometry are adapted to the construction of the rear left door in the BMW E66, allowing for installation in place of the factory component without any modifications.

Proper fit to the door frame and window edge minimizes the risk of play, creaks, or unwanted vibrations. This is particularly important in premium cars where a high standard of operation for moving parts and consistency with other body seals is expected.

Characteristics of a Used Part

The offered seal is a used original part obtained from disassembly. This type of component is a good choice when you want to maintain compliance with BMW's factory specifications while optimizing the repair costs for the rear left door area.

For window seals and strips, it is important to maintain the material's elasticity and the profile's correct shape. A used OEM component usually fits better with the existing door and window alignment than aftermarket replacements with universal geometry.

Benefits of Replacing the Window Seal Strip

Replacing a worn or damaged seal in the rear left body area of the BMW E66 allows for the restoration of proper window operation and reduction of typical эксплуатационные problems. The most significant benefits include:

• Reduced cabin noise originating from the rear left window area,
• Better protection of the door interior against moisture and dirt,
• Smoother operation of the window lifting mechanism,
• Reduced risk of window fogging caused by excessive moisture in the door.

To maintain visual and technical consistency of the body, it is advisable to select parts from the same construction group as the original factory-installed components.

Related BMW Window Seals and Strips and Technical Knowledge

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

If you are also interested in topics related to other vehicle systems, including modifications and selection of used components, you will find useful information in the article Performance Exhaust Systems: Used Headers and Sport Catalytic Converters on the Road, which discusses practical aspects of part selection for premium brand cars.