Mercedes W177 Door Front Left N/S A-Class Kosmos Cosmic Black Metallic - 191

Listing details and visual condition of the part

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

The offer applies to the bare door – without handle, window, lock, trims, or any other accessories.

There is an option to purchase a complete door for an additional fee of 80 GBP.

Mercedes W177 Door Front Left N/S A-Class Kosmos Cosmic Black Metallic is a factory body component from the Doors and door panels group, designed for installation on the driver's side in W177 series models. The original construction ensures proper geometry, correct window operation, and compatibility with factory hinges and locks. The Kosmos Cosmic Black Metallic paint finish allows for visual consistency with other body panels in the same color.

Specifications and technical data

• SKU: A1777200700-KB1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777200700
• Substitutable numbers: A1777200700, A 177 720 07 00
• Weight: 150
• Location on the vehicle: Front, Left
• Color: Kosmos Black Metallic - 191
• Category: Doors & Door Skins

Purpose and fitment

The presented front left door is designed specifically for the Mercedes W177 body, taking into account factory mounting points and body lines. Its placement on the driver's side of the vehicle guarantees compatibility with the original pillar, sill, and fender structure, which facilitates precise gap alignment and proper closing.

As a part from the Doors and door panels category, this component serves as a base for transferring equipment from the existing door – such as the lock, handle, wiring harness, window, or seals – according to the specific vehicle configuration.

Color and paint layer

The door is finished in Kosmos Cosmic Black Metallic, characteristic of many Mercedes W177 equipment configurations. The metallic paint coating provides depth to the black color and a characteristic shine under different light angles, which facilitates visual matching to other body elements in the same shade.

This type of finish is particularly beneficial for post-accident repairs or bodywork corrections, as it allows for limiting the painting scope to local blending while maintaining color consistency across the entire side of the vehicle.

Structural characteristics

The front left door for the W177 acts as a load-bearing side panel, responsible for:

• maintaining proper lateral body rigidity,
• correct window guidance in the tracks,
• stable mounting of hinges to the A-pillar,
• precise adhesion of seals to the door frame and body.

The original construction ensures compatibility with factory mounting points and maintains the manufacturer-intended operating zones for the lock and door check straps, which translates into user comfort and proper mechanism functionality.

Condition and service application

This item comes from the used parts segment, making it an attractive solution for post-accident repairs, corrosion corrections, or replacing damaged side panels. Using original doors from the same body generation reduces fitting time and minimizes the scope of bodywork compared to aftermarket replacements with uncertain geometry.

The door is suitable for both professional body and paint shops as well as workshops specializing in Mercedes vehicle repairs, where assembly repeatability and maintaining factory body parameters are essential.

Integration with other Mercedes body components

If you are planning a comprehensive repair or upgrade of the side body zone in your Mercedes and need other elements from the same group, such as skins, panels, or other doors, check out the available parts in the Mercedes Doors and door panels category.

Technical support and brand knowledge

For users interested in a broader approach to servicing vehicles of this brand, including engine equipment maintenance and selecting appropriate components, the following guide article may be helpful: Reliability under the star – how to take care of engine equipment in popular Mercedes-Benz C-Class and E-Class models?. This is a valuable addition to your knowledge when planning long-term vehicle operation.