Pillar B Cover Mercedes ML W166 Interior Trim Top Left Black A1666900325

Visual condition of the part

The product shows signs of use visible in the photos.

Pillar B Cover Mercedes ML W166 Interior Trim Top Left Black is an original cabin trim component designed for installation on the driver's side. This black interior B-pillar cover allows you to restore the consistent look of the upholstery and maintain the factory character of the interior. Thanks to its precise fit for the W166 series body, it serves as a functional complement to the factory linings.

Specifications and technical data

• SKU: A1666900325
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666900325
• Substitutable numbers: A1666900325, A 166 690 03 25
• Location on the vehicle: Left
• Color: Black
• Category: Trim

Purpose and function of the component

The described B-pillar cover is the upper, interior trim element on the left side of the vehicle. It is responsible for the aesthetic covering of the pillar structure, seat belt routing, and installations located in this area. A properly selected cover:

• ensures a visually consistent look for the side part of the cabin,
• reduces the risk of unwanted resonances and rattles in the pillar area,
• protects structural elements against accidental mechanical damage.

Fitment for the Mercedes ML W166 interior

The cover has been designed specifically for the ML W166 series, taking into account the geometry of the B-pillar and the side upholstery line. Installation on the left side of the vehicle allows for maintaining symmetry with the right side, and the black finish integrates well with typical interior color configurations in this model. The element is part of the Linings, decorative strips, and trims group, which guarantees stylistic consistency with other finishing panels.

Visual and functional characteristics

The black B-pillar cover effectively masks minor operational dirt and is easy to maintain. The construction intended for interior cabin installation ensures:

• stable mounting to factory body points,
• proper adhesion to adjacent upholstery elements,
• maintenance of a uniform finishing line in the upper part of the pillar.

Thanks to this, after replacing the element, you can achieve an orderly, aesthetic look for the side part of the interior without the need for interfering with the body structure.

Condition and service application

The B-pillar cover is a used component, which makes it an attractive solution for post-accident repairs, replacing damaged linings, or restoring the interior to a state close to factory condition. Choosing an original component from this group allows you to maintain proper fitment and compatibility with other decorative panels in the cabin.

Interior trim expansion and related components

If you are planning a comprehensive repair or upgrade of the side zone of the cabin in your Mercedes and need other elements from the same group, such as additional linings, decorative strips, or decorative pillar panels, check the available parts in the Mercedes Linings, decorative strips, and trims category.

How to optimize interior repair costs

When renovating a vehicle's interior, it is worth considering the use of used OEM components, which allow for significantly reducing service costs while maintaining proper fitment. You can find more practical tips on choosing used finishing components and planning repair budgets in the article Rising repair costs and the boom in used parts – how to save on car service?.