BMW E61 LCI Sound Insulation Side Panel Rear Left N/S 7050385

BMW E61 LCI Sound Insulation Side Panel Rear Left N/S is a factory body component designed for the rear left section of the vehicle, responsible for effective acoustic and thermal insulation within the wheel arch area. Thanks to its precise fit to the BMW structure, it ensures stable mounting, reduces noise transmission from the wheels, and improves the acoustic comfort of the cabin. It is a practical solution for users who want to maintain structural consistency of the body and keep the vehicle's interior at an appropriate level of comfort.

Specifications and technical data

• SKU: 7050385
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7050385
• Substitutable numbers: 51487050385, 7050385
• Location on the vehicle: Rear, Left
• Category: Door Panels

Purpose and function of the component

The presented insulation is a component from the Door upholstery group, however, in this case, it serves as insulation in the area of the rear left fender. Its task is to reduce noise generated by tires, suspension, and debris hitting the wheel arch, as well as partially dampening vibrations transmitted to the body structure. Properly installed insulation contributes to:

• reducing the level of noise reaching the passenger cabin,
• more even distribution of mechanical loads within the wheel arch,
• protecting the inner surfaces of the fender against dirt.

Fitment for BMW E61

The component in question has been designed specifically for the BMW E61 model, taking into account the geometry of the rear left part of the body. This means that the shape, mounting points, and profile of the insulation are adapted to the factory design solutions of this model. Such a fit allows for:

• maintaining the original body line in the wheel arch area,
• secure seating of the insulation without the need for modifications,
• consistency with other interior and wheel arch trim elements.

Thanks to this, replacing damaged insulation with an original component is a beneficial solution both in terms of technical and aesthetic aspects.

Performance characteristics

The fender insulation in the rear left part of the vehicle operates in a demanding environment – it is exposed to moisture, temperature changes, and road debris. Using a dedicated component allows for maintaining an appropriate level of protection in this area. In practice, this translates into:

• more stable operating conditions for suspension components in the wheel arch area,
• limiting the ingress of fine debris into the interior of the structure,
• maintaining the factory acoustic character of the BMW interior.

This solution is particularly important during long-term vehicle operation, when attention to detail affects overall driving comfort.

Condition and benefits of using an original component

The offered insulation is an original BMW component from the secondary market, which means maintaining factory geometry and compatibility with the body structure. Compared to replacements, this allows for:

• more secure fitment with the wheel arch and adjacent trim elements,
• maintaining the damping properties intended by the manufacturer,
• easier installation in place of the factory insulation.

This is a practical choice for post-accident repairs, replacing a damaged wheel arch, or during comprehensive renovation of the rear part of the body.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the side zone in your BMW and need other elements from the same group, such as upholstery panels, inner covers, or door trims, check the available parts in the BMW Door upholstery category.

For users interested in a broader view of the used parts market and optimizing vehicle operating costs, an article describing the advantages of using second-hand components may be helpful, available here: Used car parts for Mini Cooper – a way for style and savings.