Mercedes W177 Saloon C-Pillar Trim Panel Cover Rear Right O/S Black A1776908902

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W177 Saloon C-Pillar Trim Panel Cover Rear Right O/S Black is a precisely fitted interior trim element designed for the rear right body pillar. This factory-original black cover allows for an aesthetic finish of the pillar structure, improving the visual consistency of the cabin and protecting the underlying components. As part of the Trims, decorative strips and decorations group, it serves as a functional addition to the factory interior design of the Mercedes compact class.

Specifications and technical data

• SKU: A1776908902
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1776908902
• Substitutable numbers: A1776908902, A 177 690 89 02
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Trim

Purpose and function of the component

The described cover is dedicated to the rear right pillar area in the W177 body type, where it is responsible for the aesthetic finish of the side interior. Its tasks include:

• covering the structural pillar elements and upholstery mounts,
• visually organizing the side part of the passenger cabin,
• protecting cables, mounts, and acoustic insulation against accidental mechanical damage.

Thanks to its factory shape, the cover ensures proper adhesion to adjacent upholstery panels, which reduces the risk of unwanted looseness and rattling while driving.

Color scheme and interior fitment

The black color of the element promotes consistency with typical interior configurations in W177 models, facilitating discreet integration into the existing upholstery. The neutral shade allows for use in vehicles with both dark and contrasting cabin finishes without disrupting the overall aesthetics.

The cover has been designed with a specific location on the vehicle in mind (rear, right side), which translates into correct mounting geometry and a shape tailored to the pillar profile. Such a solution promotes stable installation and limits the need for additional modifications.

Installation characteristics

As a finishing element, the pillar trim is intended for installation in the factory mounting points of the W177 body. In practice, this means:

• maintaining the original contact line with adjacent upholstery panels,
• the possibility of removal and re-installation during service work within the pillar area,
• compatibility with the standard body structure without interfering with the load-bearing frame.

This approach makes it easier to restore the factory look of the interior after body repairs, seat belt replacement, or other work in the rear pillar area.

Condition and practical application

The item comes from disassembly, which allows for maintaining compliance with the vehicle's factory specifications and avoiding fitment issues typical of universal aftermarket replacements. This solution is particularly useful for:

• post-accident repairs in the rear body area,
• interior renovation after mechanical damage to trims and pillars,
• replacing missing upholstery elements after previous modifications.

Choosing an original pillar cover helps maintain the visual consistency of the cabin and preserves the vehicle's value during further operation.

Expanding the Mercedes interior setup

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 Trims, decorative strips and decorations category.

During renovation work, it is also worth taking care of other vehicle systems; in the case of active safety elements, an article describing the selection of used brake system components may be helpful – you can find it here: Second-hand brake system: how to safely choose discs, calipers, and ABS?.