Mercedes W177 Door Rear 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 Rear Left N/S A-Class Kosmos Cosmic Black Metallic - 191 is an original body component from the Doors and door panels group, designed for installation on the rear left side of W177 series models. The Kosmos Black Metallic paint ensures visual consistency with the factory body finish and allows for precise fitting during accident repairs or restoration.

Specifications and technical data

• SKU: A1777301300-KB1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777301300
• Substitutable numbers: A1777301300, A 177 730 13 00
• Weight: 150
• Location on the vehicle: Rear, Left
• Color: Kosmos Black Metallic - 191
• Category: Doors & Door Skins

Purpose and function of the body component

The presented rear left door is structurally prepared for operation in the side section of the body, where it is responsible for passenger protection, structural rigidity, and the correct body line. The component is designed to work with factory hinges, locks, seals, and windows, which facilitates the transfer of equipment from the previously installed door.

The placement on the vehicle in the rear, left part of the body allows for direct replacement of the damaged panel without interfering with adjacent structural elements. Thanks to this, the repair is predictable, and the body geometry remains in accordance with the manufacturer's specifications.

Kosmos Black Metallic color – benefits for repairs

The factory paint in the Kosmos Black Metallic shade significantly facilitates the color matching process in Mercedes vehicles with the same color code. The metallic structure of the coating provides the characteristic depth and gloss typical of the premium segment, while also allowing the scope of painting to be limited to the connection zone with adjacent panels.

For body and paint shops, this means less preparatory work, easier blending, and a more predictable final result. In practice, this translates into shorter vehicle downtime and stable visual quality of the repair.

Technical and assembly characteristics

The door belongs to the Doors and door panels group, which means it is a full-size body panel prepared for integration with factory mounting points. The construction is optimized for rigidity and cooperation with vehicle safety systems, such as controlled deformation zones in the side part of the body.

The component has a specific placement on the vehicle, which eliminates the risk of error when selecting the side and position. The properly selected weight of the door supports the correct operation of the hinges and lock, and also affects the comfort of opening and closing without overloading the pillar structure.

Why choose used Mercedes doors

A used body component from a premium class vehicle is a solution that allows you to combine cost control with maintaining the original geometry and stylistic character. In the case of the Mercedes W177 door, this means preserving factory stampings, side lines, and compatibility with existing seals and fittings.

For car owners and professional service centers, this is particularly beneficial for accident repairs, where both the quality of fitment and the ability to use existing equipment are important. A used body panel also allows for reducing the amount of materials needed for a full restoration, which has economic and service significance.

Repair expansion – Mercedes Doors and door panels group

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

More about the trend for original used premium components

If you want to better understand why original used components for premium brands, such as Mercedes, are becoming an increasingly chosen solution for body and mechanical repairs, it is worth reading the market analysis in the article Crisis in the new parts market? Why in 2026 used originals for premium cars (BMW, Mercedes, Porsche) are the hottest trend.