BMW X6 Series E71 Rear Left Door N/S Inner Weatherstrip Sealing Trim 7179403

BMW X6 E71 Rear Left Door Seal is an original body part from the Door Seals group, designed for installation in the rear left area of the vehicle. A precisely fitted profile ensures a tight seal against the body, which reduces noise, moisture ingress, and unwanted vibrations during driving. A used OEM component helps maintain the factory finish and proper door operation in the BMW X6 E71.

Specifications and technical data

• SKU: 7179403
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7179403
• Substitutable numbers: 51357179403, 7179403
• Location on the vehicle: Rear, Left
• Tire profile: 65535
• Category: Door Seals

Intended Use and Fitment for BMW X6 E71

The presented seal has been specifically designed for the rear left body section of the BMW X6 E71 generation. It is responsible for the door perimeter's sealing, working in conjunction with the frame and panel structure to maintain appropriate pressure and correct door wing operation. This allows for maintaining acoustic comfort inside the cabin and limiting the ingress of external contaminants.

The original cross-sectional geometry of the seal is adapted to the factory mounting points, which facilitates installation and minimizes the risk of leaks due to poor fitment. This solution is particularly beneficial when replacing a worn or damaged component after a collision, edge corrosion, or prolonged use.

Sealing Function and Body Protection

The door seal performs several key operational functions:

• limits the ingress of water and moisture into the cabin and sill area,
• stabilizes the door in the closed position, improving its guidance and closing,
• reduces noise from airflow and external sounds,
• protects the painted edges of the door and frame from direct metal-to-metal contact.

A well-chosen seal contributes to acoustic comfort, perceived driving quality, and long-term protection of body panels. For the BMW X6 E71, this is particularly important at higher speeds, where the vehicle's aerodynamics generate greater loads on the door area.

Characteristics of a Used Component

The offered seal is a used component, meaning it comes from a dismantled vehicle and retains the original manufacturer's specifications. This type of part is a good choice when aiming to maintain factory fitment and compatibility with the door structure while reducing repair costs. A used OEM component typically works better with existing mountings than aftermarket parts with a universal profile.

Replacing the seal with an original component allows for restoring the correct contact line between the door and the body, which affects sealing, lock operation, and the overall ergonomics of the rear left area of the vehicle.

Importance of Correct Seal Selection

Selecting the correct seal for a specific vehicle model and side is crucial for durability and functionality. In the case of the BMW X6 E71, differences in the shape of the door frame and body between the left and right sides necessitate the use of a dedicated component to achieve proper pressure and sealing. The correct component reduces the risk of:

• air whistling at higher speeds,
• water accumulation in the sill area,
• accelerated corrosion of door edges and pillars,
• excessive play and vibrations of the door wing.

By using the dedicated rear left door seal for the BMW X6 E71, parameters close to factory specifications can be restored without the need for body modifications or additional bodywork.

Expanding the Scope of Service Work

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 perimeter seals, flange elements, or sill seals, check the available parts in the BMW Door Seals category.

For users interested in optimizing engine performance and making informed choices about used parts, advisory materials may also be useful – find more information on the operation and selection of exhaust gas recirculation components in the article EGR: What It Is and Why Consider Used EGR Valves.