BMW F02 Rear Door Sealing Strip Bottom Gap Lower Left Right N/O/S 7179125

BMW F02 Rear Door Seal Gap Bottom Left Right is an original body part from the Door Seals group, designed for installation in the rear part of the vehicle on the left or right side. It ensures a tight seal between the bottom edge of the door and the body, limiting the ingress of water, dirt, and noise into the cabin, which translates to stable operating conditions for the BMW car.

Specifications and technical data

• SKU: 7179125
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7179125
• Substitutable numbers: 7179125, 51357179125
• Location on the vehicle: Rear, Right, Left
• Category: Door Seals

Purpose and Function of the Rear Door Seal

The presented seal is designed for operation in the rear body area, where it is responsible for sealing the lower part of the door on both the left and right sides. This component:

• limits the ingress of water and moisture into the sills and the vehicle's interior,
• stabilizes airflow around the door, reducing noise during driving,
• supports anti-corrosion protection of the lower door edges and adjacent body elements.

Thanks to its proper profile and fit for a specific BMW generation, the seal works with factory mounting points, which facilitates installation and maintains the structural integrity of the body.

Construction, Fit, and Installation

The seal belongs to the group of body parts with a precisely shaped cross-section, adapted to the lower gap of the rear doors. The construction is intended for installation on both sides of the vehicle, allowing it to be used as a replacement for both the left and right sides.

With correct installation:

• the contact line between the door and the sill remains evenly pressed along its entire length,
• compatibility with factory sill covers and door upholstery is maintained,
• there is no need for body modifications or non-factory alterations.

Such a fit promotes the preservation of the door's factory geometry and the correct operation of locks and hinges.

Performance Characteristics and Benefits of Use

As a component from the Door Seals category, this product directly impacts the comfort of daily BMW operation. A correctly selected and installed seal:

• limits the penetration of noise from the wheel arches and underbody into the passenger cabin,
• reduces the risk of water and dirt accumulation in the lower part of the door,
• supports the maintenance of a stable interior temperature, reducing the load on the heating and air conditioning systems.

For the user, this means more predictable driving conditions, better interior protection, and reduced potential costs associated with corrosion in the sill area and lower door edges.

Item Condition and Service Application

The offered seal is a used part, making it an attractive service solution for BMW owners looking for factory-fit parts at a reasonable price. This type of component is particularly useful in situations where:

• the original seal is mechanically damaged or deformed,
• there are leaks in the lower part of the rear doors,
• after bodywork and paint repairs, it is necessary to restore proper sealing of the sill area.

Using an original seal from the same model group helps maintain the vehicle's technical consistency and facilitates subsequent service work on the doors and sills.

Related Parts and Additional Information

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, bump stops, or sealing strips, check the available parts in the BMW Door Seals category.

For drivers interested in a broader approach to vehicle operation and servicing, including the conscious selection of used parts, the guide article When is it Worth Replacing an Alternator with a Used One: A Practical Guide for Drivers, which discusses the practical aspects of using aftermarket components, may be helpful.