BMW G31 G31 LCI Trim Panel Cover Disc Hinge Support Bracket Left N/S 7390405

BMW G31 G31 LCI Trim Panel Cover Disc Hinge Support Bracket Left N/S is an original body component from the Claddings, trim strips and decorations group, designed for installation on the left side of 5 Series Touring models. The precisely matched geometry of the bracket ensures stable glass guidance and an aesthetic edge finish, which translates into a consistent appearance and correct operation of the opening mechanism.

Specifications and technical data

• SKU: 7390405
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7390405
• Substitutable numbers: 7390405, 51497390405
• Location on the vehicle: Left
• Category: Trim

Purpose and function of the component

The described glass hinge cover serves a dual role: structural and aesthetic. As a left bracket operating in the rear window area, it is responsible for:

• stable support of the hinge within the G31 / G31 LCI Touring body,
• protecting critical mounting points from dirt and moisture,
• neat, aesthetic edge finishing in the window area.

This ensures that the correct hinge operating geometry is maintained, and the entire rear window area remains visually consistent with other BMW body components.

Construction and fitment for BMW G31 / G31 LCI

The bracket has been designed specifically for the 5 Series Touring body, which means its shape, mounting points, and profiling are in accordance with the manufacturer's factory specifications. Proper fitment to the left side of the vehicle reduces stress in the hinge area and minimizes the risk of the glass not closing correctly.

As a component from the Claddings, trim strips and decorations group, the bracket works with adjacent covers and strips, creating a uniform finish line. This allows for maintaining the visual order characteristic of BMW in the rear part of the body, without the need for modifications or fitting universal replacements.

Benefits of using the original bracket

Using the original glass hinge cover in a BMW G31 / G31 LCI provides a number of practical benefits:

• Factory fitment – proper adhesion to the body and adjacent components, without unwanted gaps.
• Stable hinge operation – maintaining the correct position of the glass during opening and closing.
• Aesthetic finish – consistent appearance of the rear of the vehicle, in line with BMW's styling line.
• The ability to use existing mounting points without interfering with the body structure.

This solution is particularly recommended for post-accident repairs, replacing damaged trim components, or restoring the car to a factory-like condition.

Characteristics of the used component

The offered bracket is a used part, sourced from dismantling, which allows for maintaining compliance with the original BMW specification while reducing repair costs. Such components are frequently chosen by users who want to maintain a high quality of finish while rationally managing their service budget.

Before installation, it is recommended to perform a standard inspection of the condition of the mounting surfaces and compare the shape with the removed element to ensure that the left bracket corresponds to the configuration of the specific BMW G31 or G31 LCI unit.

Expanding the rear window area upgrade

If you are planning a comprehensive repair or upgrade of the rear window area in your BMW and need other components from the same group, such as covers, trim strips, or decorative panels, check out the available parts in the BMW claddings, trim strips and decorations category.

If you are interested in a broader approach to refreshing the interior and utility area of the car using second-hand elements, it is worth checking out the guide Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses the practical aspects of selecting and installing used components.