BMW 3 Series E91 Rear Left N/S Door Window Frame Top Trim Surround Cover

BMW 3 Series E91 Rear Left N/S Door Window Frame Top Trim Surround Cover is an original body component from the Doors and door panels group, designed for installation in the rear left section of the vehicle body. It ensures stable window guidance, proper sealing, and an aesthetic finish to the door edge, which translates into acoustic comfort and the durability of the entire door assembly.

Specifications and technical data

• SKU: 7119949
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7119949
• Substitutable numbers: 51357119945, 7119945, 51347119949, 7119949
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the component

The rear left door window frame trim in the BMW 3 Series E91 is responsible for the correct guidance of the window in the tracks and protecting the frame edge against mechanical damage. This component works in conjunction with the window regulator mechanism and seals, limiting the ingress of water and noise into the cabin.

Thanks to its precise fit to the specific body model, the correct geometry of the door frame is maintained, which facilitates window adjustment and minimizes the risk of jamming during operation.

Construction and fitment to the BMW body

The trim has been designed specifically for the rear left door area in the BMW, taking into account the characteristic E91 body line. The shape and mounting points are consistent with factory design specifications, allowing for installation in place of the original part without the need for modifications.

Such a fit ensures:

• a consistent connection with the door frame and window seals,
• proper window guidance throughout its entire range of operation,
• maintenance of the factory rigidity of the door edge.

Benefits of using the original window frame trim

Using the original window frame trim in the BMW E91 allows for maintaining the factory operating parameters of the window mechanism and the aesthetics of the side body section. This component helps to reduce unwanted window vibrations, decreases the risk of play in the tracks, and supports the maintenance of a tight seal at the glass-to-door interface.

For the user, this means:

• stable window operation in the rear left part of the vehicle,
• more uniform seal adhesion,
• maintaining a consistent appearance of the door frame with other body elements.

Installation characteristics

The location on the vehicle defined as rear – left side clearly indicates the mounting position, which facilitates the selection of the correct component during repair or replacement. The trim is intended for installation at factory mounting points, allowing service work to be carried out in an orderly and predictable manner.

Before installation, it is recommended to check the condition of the window tracks and door seals to fully utilize the protective and stabilizing function of this component.

Integration with the BMW Doors and door panels group

The window frame trim is part of a larger assembly of body components responsible for door operation, window guidance, and protection of the side bodywork. If you are planning a comprehensive repair or upgrade of the door zone in your BMW and need other components from the same group, such as door skins, reinforcements, or additional trims, check the available parts in the BMW Doors and door panels category.

Condition of the component and practical application

The offered window frame trim is a used part, which allows for an economical repair while maintaining the original geometry and operating characteristics of the door. This type of component is particularly useful for post-collision repairs, replacing damaged doors, or eliminating problems with window guidance in the rear left part of the vehicle.

Selecting the correct window frame trim is important both for user comfort and for the long-term durability of the window lifting mechanism and door seals.

Additional information for BMW users

BMW owners often combine bodywork repairs with powertrain upgrades or an analysis of the cost-effectiveness of further investments in the car. If you are considering long-term operation of your vehicle and want to better understand the specifics of this brand's popular diesel engines, check out the article BMW N47 vs M57 / M57N / M57N2 – a ranking of legendary diesels, which discusses performance, reliability, and the costs of parts from the secondary market.