Mercedes GLA X156 Pillar B Interior Trim Cover Top Left N/S Black A1566904100

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes GLA X156 Pillar B Interior Trim Cover Top Left N/S Black is an original interior trim component designed for installation on the left side of the vehicle body. The black finish allows for an aesthetic match with the factory cabin styling, while the precise fit characteristic of the Mercedes brand facilitates installation and ensures a stable mount. It is a practical solution for replacing damaged trim or for renovation work around the B-pillar area.

Specifications and technical data

• SKU: A1566904100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1566904100
• Substitutable numbers: A1566904100, A 156 690 41 00
• Location on the vehicle: Left
• Color: Black
• Category: Trim

Purpose and function of the component

The described cover is part of the B-pillar interior trim for the Mercedes GLA X156 model, installed on the left side of the vehicle. It is responsible for aesthetically covering the pillar structure and maintaining the stylistic line of the side interior. Thanks to its fit for the specific GLA generation, it ensures a cohesive cabin appearance and proper adhesion to adjacent upholstery panels.

The black color of the trim allows for a uniform interior color scheme and reduces the visibility of minor dirt, which is particularly important in daily vehicle use. The element belongs to the Trim, decorative strips, and moldings group, responsible for the visual and functional finishing of the passenger cabin.

Construction and installation fit

The B-pillar cover has been designed as a part dedicated to a specific model, which translates into the correct placement of mounting points and an appropriate profile matched to the body shape. It is mounted on the left side, in the upper part of the pillar, in the area between the front and rear doors.

Key functional features of this element include:

• dedicated fit to the geometry of the B-pillar in the Mercedes GLA X156,
• black finish that harmonizes with the factory interior styling,
• design intended for installation in original mounting points,
• maintenance of the upholstery line continuity between the headliner, door seals, and the lower part of the pillar.

As a result, once properly installed, the cover creates a visually cohesive and functional side structure element, without the need for modifications or on-site adjustments.

Practical application and benefits of replacement

Replacing the upper B-pillar cover is recommended in the event of mechanical damage, cracks, abrasions, or traces left after the disassembly of other interior components. Using an original trim allows for restoring the factory look of the cabin, which is important both aesthetically and functionally – no sharp edges, stable mounting, and proper adhesion to seals and upholstery.

The main advantages of using this component include:

• restoration of the cohesive look of the side interior,
• reduction of noise and vibrations in the pillar area due to proper fitment,
• maintenance of the original quality of finish characteristic of the Mercedes brand,
• suitability for renovation work or professional post-accident repairs.

Characteristics of the used product

The item is offered as a used part, which means it may show signs of normal wear, yet it retains its mounting and functional integrity. For many users, this represents a favorable compromise between cost and maintaining the original character of the interior. In the case of trim and decorative moldings, using an original used component often ensures a better fit than aftermarket replacements with a universal design.

Expansion of decorative trim in the Mercedes GLA

If you are planning a comprehensive repair or upgrade of the side interior zone in your Mercedes and need other elements from the same group, such as covers, overlays, or additional strips, check the available parts in the Mercedes Trim, decorative strips, and moldings category.

For those interested in a broader approach to car modifications, covering both the interior and the exhaust system or elements improving the engine sound character, the guide article describing the selection and installation of a sports exhaust system may be helpful – you can find it here: Used Mini John Cooper Works Pro sports exhaust – a legal way for a racy sound and +7 HP.