Mercedes X118 Rear Spoiler Boot Trunk Lid Tailgate Panel Kosmos Black - 191

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

The Mercedes X118 Boot Lid Spoiler in Cosmos Black Metallic is an original body part from the Spoilers and Wings category, designed for installation on the rear tailgate. The paint in the Cosmos Black Metallic - 191 shade ensures visual consistency with the factory Mercedes palette and allows for an aesthetic, technically correct replacement or upgrade of the vehicle's rear end.

Specifications and technical data

• SKU: A1187901100-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1187901100
• Substitutable numbers: A1187901100, A 118 790 11 00
• Location on the vehicle: Rear
• Color: Kosmos Black Metallic - 191
• Category: Spoilers & Wings

Purpose and Function of the Mercedes X118 Rear Spoiler

The spoiler presented is a factory-fitted component installed on the rear boot lid of X118 series models. Its purpose is to streamline airflow over the rear of the body, which contributes to stability at higher speeds and reduces turbulence behind the vehicle. Simultaneously, it forms an integral part of the styling line, emphasizing the characteristic, dynamic silhouette of the shooting brake body style.

Its placement on the vehicle's rear tailgate makes this element highly visible and significantly impacts the visual perception of the entire rear of the car. Replacing it with an original spoiler ensures factory-level fitment and the correct geometry of the boot lid's edge.

Cosmos Black Metallic - 191 Color and Visual Matching

The factory paint Cosmos Black Metallic - 191 is a dark, metallic shade widely used across the Mercedes range. This allows the spoiler to be used as a replacement part without immediate repainting, provided the vehicle has the same color code. The metallic finish ensures uniform light reflection, which is particularly important on the edges of the tailgate where shade differences are easily noticeable.

For modernization projects or body conversions, using an originally painted spoiler in this color facilitates maintaining visual consistency with other body elements and limits the scope of painting work to potential touch-ups.

Performance and Installation Characteristics

As an element from the Spoilers and Wings category, the tailgate spoiler for the Mercedes X118 is designed considering the aerodynamic loads and operating conditions typical for a sporty profile estate car. The construction intended for installation on the boot lid ensures stable seating and proper transfer of forces acting on the rear body edge.

When selecting this component, pay attention to:

• model compatibility with the X118 body,
• placement on the vehicle's rear boot lid,
• the factory Cosmos Black Metallic - 191 color, which facilitates matching with the existing paintwork.

This part is from a used vehicle, which is important when planning any preparatory work before installation, such as surface inspection or fitting to the current condition of the boot lid.

Benefits of Using an Original Rear Spoiler

Using an original rear spoiler on the Mercedes X118 allows for the preservation of the factory body line and predictable vehicle behavior at higher speeds. Compared to aftermarket alternatives, an OEM part ensures:

• stylistic consistency with other body components,
• predictable fitment to the rear tailgate geometry,
• retention of the manufacturer's designed aerodynamic properties.

For drivers who use their car on highways or value a precise appearance of the rear body, such a spoiler is a functional and aesthetic solution that allows for the restoration or maintenance of the vehicle's factory character.

Configuration Expansion and Additional Materials

If you plan further expansion of the aerodynamic package or replacement of other body elements on your Mercedes, it is advisable to select components based on the same styling line and paint color to avoid differences in shade and shape between individual parts.

For vehicles equipped with all-wheel drive, the selection of body elements often goes hand-in-hand with attention to the drivetrain; you can find more about the specifics of AWD solutions in Mercedes and other brands in the article xDrive, 4Matic, quattro or 4Motion – comparison of AWD systems from BMW, Mercedes, Audi, and VW.

If you are considering installing additional aerodynamic elements or replacing other body components on your Mercedes and want to maintain stylistic and technical consistency, check the available parts in the Mercedes Spoilers and Wings category.