BMW 7 Series F01 F02 F04 Inner Left N/S Window Channel Cover Rear Door 7178027

BMW F01 F02 F04 Left Rear Window Trim is an original body part designed for installation on the rear left side of the vehicle. It provides an aesthetic finish to the window edge and stable guidance for the seal, which translates to proper window sealing and reduced wind noise. Thanks to its genuine BMW origin, correct dimensional tolerances and compatibility with the door structure are maintained.

Specifications and technical data

• SKU: 7178027
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7178027
• Substitutable numbers: 51357178027, 7178027, 51357199337, 57199337, AS
• Location on the vehicle: Rear, Left
• Category: Other Interior Parts & Accessories

Window Trim Purpose and Function

The left rear window trim is responsible for precisely finishing the area where the glass meets the body. This element:

• stabilizes the window edge in the rear body area,
• supports the correct positioning of the seal and reduces the risk of its deformation,
• helps reduce wind noise during high-speed driving,
• contributes to a cohesive look of the side window line in BMW F01, F02, and F04 models.

Due to its specific placement on the vehicle (rear – left side), installation is straightforward, without the need for modifications or adjustments.

Compatibility and Installation Parameters

The trim is designed as a dedicated part for BMW F01/F02/F04 body types, ensuring correct geometry relative to the window and door frame. Its placement on the vehicle, specified as rear – left, clearly identifies the installation side and minimizes the risk of errors when selecting the component.

The part has an assigned OEM part number and associated replacement numbers, which facilitates verification of compatibility with specific vehicle configurations in BMW catalogs and parts selection tools. This allows for precise checking of whether the trim matches the vehicle's body version and year.

Product Characteristics and Condition

The offered window trim is from the range of original BMW components and is classified as a used part. This means it retains its factory geometry and mounting method, while also offering an economical alternative to new parts. This type of solution is particularly beneficial for accident repairs, bodywork and paint corrections, and for replacing damaged trim due to wear and tear.

Choosing a used OEM part helps maintain visual consistency with other trim pieces and seals on the vehicle, without the risk of differences in shape or contour lines characteristic of BMW F-series bodies.

Why Choose an Original BMW Window Trim

Using a genuine window trim on the rear left side of the body offers several practical benefits:

• guaranteed fit with the door and window structure, without the need for mounting modifications,
• maintaining the continuity of the side window styling line in F01/F02/F04 models,
• easier installation due to the manufacturer's intended fitting method,
• possibility of using existing mounting points and seals.

A correctly chosen part like this helps maintain proper sealing of the window area and improves acoustic comfort inside the vehicle, which is particularly important in higher-class sedans, such as the F01/F02/F04 series.

If you are planning a comprehensive repair or upgrade of the side window area on your BMW and need other parts from the same group, such as additional trims, seals, or window frame finishes, check the available parts in the Other BMW category.

Support in Selecting Used Parts

When choosing used body parts, it is advisable to consider not only the price but also the origin and compatibility with catalog numbers. To better plan your repair budget and make informed decisions when using the second-hand parts market, read our guide on the blog: Rising Repair Costs and the Boom in Used Parts – How to Save on Car Service?.

For those interested in comparing the characteristics of sporty car versions with standard variants, in the context of selecting mechanical and body components, we also recommend the article: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which illustrates how structural differences affect the selection of appropriate replacement parts.