Mercedes R172 Rear Panel Left N/S C Pillar Trim Cover Obsidian Black - 197

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes R172 Rear Panel Left N/S C Pillar Trim Cover Obsidian Black - 197 is an original body component designed for the rear left pillar area of this convertible series. Finished in Obsidian Black Metallic, the cover ensures visual consistency of the bodywork and proper finishing of the area around the soft top. This used OEM component is a sensible choice for accident repairs, replacing damaged elements, or completing missing body parts.

Specifications and technical data

• SKU: A1727900119-OB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1727900119
• Substitutable numbers: A1727900119, A 172 790 01 19
• Location on the vehicle: Rear, Left
• Color: Obsidian Black Metallic - 197
• Category: Convertible Tops & Parts

Purpose and function of the component

The C-pillar cover in the R172 model is responsible for the aesthetic and technical finishing of the rear body section on the left side, in the immediate vicinity of the soft top mechanism. This element:

• masks the pillar structure and internal mounts,
• organizes the routing of installations in this area,
• stabilizes specific mounting points for upholstery and seals,
• supports the correct guidance of the soft top edges during opening and closing.

This ensures the proper geometry of the rear body structure is maintained, which translates into comfort when using the convertible and reduces unwanted vibrations and noise in this area.

Color scheme and visual fit

The finish in Obsidian Black Metallic ensures consistency with the factory paint palette used on Mercedes bodies. Metallic black blends well with both light and dark interior configurations, as well as most body colors.

Choosing a cover in this color is particularly important for:

• local repairs after mechanical damage,
• precise reconstruction of the rear area after a collision,
• maintaining a uniform stylistic line around the soft top and pillars.

Vehicle placement and installation aspects

The element is designed for installation in the rear left part of the body, in the C-pillar area. This placement requires following the correct sequence for removing and installing adjacent components, especially those related to the soft top structure.

When planning service work, it is worth paying attention to:

• proper alignment of the cover edges with adjacent panels,
• checking mounting points for any previous repairs,
• the condition of seals and finishing elements in the immediate vicinity of the pillar.

This approach helps minimize the need for subsequent adjustments and ensures stable seating of the part within the body structure.

Characteristics of the used OEM component

The C-pillar cover comes from dismantling and is offered as an original Mercedes component from the Convertible soft tops and parts category. In practice, this means maintaining factory geometry, correct mounting points, and compatibility with other body elements and the roof mechanism.

Choosing a used OEM component is particularly beneficial when you want to:

• maintain original fitment quality,
• ensure compliance with the factory model specification,
• optimize repair costs while using parts from the same production line as the elements installed in the car.

You can find more about the advantages of original used components in our guide: The best used car parts – a guide to the most frequently chosen original parts.

Expanding repairs within the soft top area

If you are planning a comprehensive repair or upgrade of the rear soft top structure in your Mercedes and need other elements from the same group, such as additional covers, trim panels, or roof guidance elements, check out the available parts in the Mercedes convertible soft tops and parts category.