BMW F45 Sound Insulation Insulating Mat Door Rear Right O/S 7390078

BMW F45 Sound Deadening Mat Right Rear Door is an original part from the Doors and Door Panels group, specifically designed for the rear right body area. This precisely fitted mat reduces the penetration of external noise, improves the cabin's acoustic comfort, and stabilizes the door upholstery, resulting in a more organized operation of the entire panel.

Specifications and technical data

• SKU: 7390078
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7390078
• Substitutable numbers: 7390078, 51487390078, 7297260, 51487297260
• Location on the vehicle: Rear, Right
• Category: Doors & Door Skins

Purpose and Function in BMW F45 Rear Doors

The presented sound deadening is designed for installation in the rear right part of the body, within the passenger door. Its purpose is to create an effective acoustic barrier between the outer panel and the vehicle's interior, as well as to organize the space inside the door under the upholstery. This reduces sheet metal resonances, knocks, and air noise, contributing to quieter operation of the window and lock mechanisms.

The appropriately designed geometry of the mat allows for proper routing of electrical harnesses and mechanical components inside the door, facilitating servicing and reducing the risk of unwanted chafing or foreign sounds during driving.

Construction and Fit to Door Structure

The sound deadening has been designed as a dedicated component for the specific door configuration in the BMW F45 series, maintaining factory mounting points and a shape that matches the sheet metal contours. This solution ensures:

• stable adhesion to the inner part of the door panel,
• no interference with window guides and the lifting mechanism,
• preservation of service spaces intended by the manufacturer,
• easier removal and reinstallation of the door upholstery.

The original mat construction promotes acoustic consistency of the entire body side, which is particularly important when replacing a single component after body repairs or interventions in the door system.

Benefits of Using Original Sound Deadening

Using the factory sound deadening in the rear right part of the door allows for the restoration of the vehicle's original acoustic and functional parameters. Key benefits include:

• noise reduction from tires, road surface, and airflow in the wheel arch area and the lower part of the door,
• more even door closing due to reduced panel vibrations,
• better support for the upholstery, reducing the risk of fluttering or creaking,
• maintaining a consistent acoustic character of the interior compared to the other doors.

For workshops and users, this means the ability to perform repairs in a manner close to factory standards, without the need to use universal, less-fitting materials.

Characteristics of a Used Part

The offered sound deadening mat is a used part, removed from a vehicle, which allows for the preservation of the original structural specifications intended by the manufacturer. A used part is a particularly advantageous solution for accident repairs or replacements after interventions in the door system, when maintaining factory fit and a reasonable part cost is important.

In practice, this enables efficient restoration of door completeness after replacing sheet metal, glass, lock, or electrical harness, without the need to modify the structure or cut soundproofing materials.

Complementary BMW Door Components

If you are planning a comprehensive repair or modernization of the door area in your BMW and need other parts from the same group, such as panels, reinforcements, or additional plates, check the available parts in the category BMW Doors and Door Panels.

Support in Selecting Used OEM Parts

When planning door repairs and selecting sound deadening, it is worth considering the availability of original used parts, which often reduces vehicle downtime in the workshop and facilitates the preservation of factory vehicle parameters. If you want to learn how using used components can affect workshop operations, read the article Availability of Ready-to-Use Car Parts vs. Repair Time – How Used OEM Parts Shorten Workshop Stays?.