Sound Insulation BMW X3 F25 X4 F26 Panel Cover Door Rear Left N/S 7358017

BMW X3 F25 X4 F26 Sound Deadening Door Insulation Left Rear 7358017 is a factory part from the Door Upholstery group, specifically designed for the rear left body area. It is responsible for effective acoustic and thermal insulation, improving driving comfort and the overall refinement of BMW X3 F25 and X4 F26 vehicles.

Specifications and technical data

• SKU: 7351207
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7351207
• Substitutable numbers: 7351207, 51487351207, 7267523, 51487267523, 7358017
• Location on the vehicle: Rear, Left
• Category: Door Panels

Purpose and Fitment

The presented sound deadening is dedicated for installation in the rear left door area, ensuring proper fitment with the panel structure and technological openings. As an original BMW part, the insulation works with factory mounting points, door wiring harnesses, and upholstery, facilitating installation and minimizing the risk of improper alignment.

The vehicle placement is precisely defined as the rear left side, meaning the part is intended for a specific mounting position without the need for modifications or shape adjustments.

Function and Benefits of Installation

The door sound deadening performs several key operational functions:

• reduction of road noise and wind noise penetrating through the door panel,
• limiting the transmission of sounds from the suspension and wheel arch,
• stabilizing thermal conditions in the cabin around the rear seats,
• sealing the space between the outer metal panel and the door upholstery.

As a result, the vehicle interior becomes noticeably quieter, and the performance of the audio system in the rear doors is more predictable – speakers operate in a more acoustically isolated space. This translates to higher acoustic comfort for passengers and more stable everyday usability conditions.

Part Characteristics and Installation

The offered insulation belongs to the Door Upholstery group, meaning it forms part of the complete internal trim of the door panel. The construction is prepared to work with factory clips, guides, and mounting elements, which simplifies the removal of the old sound deadening and the installation of the offered component.

The part is used, which means it comes from a dismantled vehicle and may show standard signs of wear and tear, but it retains its functionality in terms of acoustic and thermal insulation. This is a particularly beneficial solution for accident repairs, replacing damaged doors, or restoring factory comfort after bodywork and paint interventions.

Application in Service and Body Repairs

Replacing the rear left sound deadening is recommended, among other situations, after:

• bodywork and paint repairs in the rear door area,
• upholstery removal for window mechanism or lock repair,
• mechanical damage or tears to the existing insulation,
• problems with excessive noise coming from the rear wheel arch area.

By using original sound deadening, the service center or user restores the door's factory insulation parameters, which is important for both comfort and the proper functioning of other trim elements.

Expanded Offer in the Same Group

If you are planning a comprehensive repair or upgrade of the door area in your BMW and need other parts from the same group, such as upholstery panels, door inserts, or interior covers, check the available parts in the BMW Door Upholstery category.

Technical Support and Used Parts Selection

When working with parts from dismantling, it is useful to know best practices for selecting and verifying component condition. In the context of other vehicle components, especially those related to safety, a guide describing the principles of purchasing used braking system elements may be helpful – you can find it in the article Used Braking System: How to Safely Choose Discs, Calipers, and ABS?, which shows how to consciously approach the selection of used parts in an online store.