BMW F30 F31 Rear Left Door N/S Inner Weatherstrip Trim 7258297

BMW F30 F31 Rear Left Door N/S Inner Weatherstrip Trim is an original component from the Doors and door panels group, designed for the rear left side of the vehicle body. It ensures effective water drainage from the window and provides a stable seal for the edge, which reduces noise and protects the interior from moisture. This used OEM part is a sensible choice for drivers who expect factory-fit quality without the need for modifications.

Specifications and technical data

• SKU: 7258297
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7258297
• Substitutable numbers: 51357258297, 7258297
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Function of the door weatherstrip in a BMW

The rear left window weatherstrip is responsible for the precise guidance and cleaning of the glass surface during operation. The seal limits the ingress of water, dirt, and fine debris into the door interior, which reduces the risk of corrosion for the window regulator mechanism components and improves cabin acoustics. Thanks to the factory profile matched to the specific geometry of the BMW F30/F31 doors, the correct pressure against the glass and stable seating on the panel edge are maintained.

Purpose and body fitment

The element is designed for installation in the rear left door area, which guarantees compatibility with the body line and proper adhesion to the glass. The original OEM construction allows for maintaining factory gaps and the aesthetics of the side bodywork, without the need for adjustments or modifications to the mounts. This solution is particularly beneficial for post-accident repairs, replacing corroded or worn seals, and for comprehensive restoration of the door zone.

Benefits of using an original used weatherstrip

Using an original weatherstrip in a BMW translates into several practical advantages:

• factory fitment to the shape of the door and window,
• maintenance of proper window regulator mechanism operation,
• limitation of water and debris ingress into the door interior,
• improvement of acoustic comfort inside the cabin,
• consistent appearance of the side bodywork after repair.

A used OEM part allows you to maintain the original standard of workmanship characteristic of BMW, while optimizing service costs. This is a good solution for users who want to preserve the factory character of the car while avoiding aftermarket replacements of uncertain quality.

Installation zone and practical tips

The trim is intended for installation in the rear left part of the vehicle, in the upper zone of the door panel, in direct contact with the side window. When replacing, it is worth paying attention to:

• proper seating on the edge of the door sheet metal,
• even pressure along the entire length of contact with the glass,
• the condition of the guides and the window regulator mechanism to avoid excessive load on the seal.

Selecting an element from the same assembly group facilitates maintaining the technical consistency of the entire door assembly, which is important for both durability and vehicle comfort.

Why choose a used OEM part

For many drivers, choosing a used original part is a conscious technical decision. Factory BMW components are designed for long-term operation, and their reuse allows for maintaining the original performance parameters of the door system. If you want to better understand when a used OEM part is more beneficial than an aftermarket replacement, check out the article 5 reasons why a used OEM part is a better choice than a replacement, where you will find specific examples and practical selection criteria.

If you are planning a comprehensive repair or upgrade of the door zone in your BMW and need other elements from the same group, such as seals, panels, or additional trims, check out the available parts in the BMW Doors and door panels category.