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 is an original body component from the Doors and door panels category, designed for installation on the rear left side of the vehicle. The Kosmos Black Metallic paint finish ensures visual consistency of the bodywork, while the factory-standard door construction guarantees a proper fit to the body lines and mounting points.

Specifications and technical data

• SKU: A1777301300-KB3
• 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 body fitment

The presented door has been designed as a rear left body component for the Mercedes W177 model. The construction, based on factory mounting points, facilitates correct gap alignment, maintenance of body geometry, and proper operation of the lock and hinges after installation. This solution is particularly useful for post-accident repairs, where restoring the original rigidity and geometry of the side body zone is crucial.

Characteristics of the Kosmos Black Metallic paint

The door is finished in Kosmos Black Metallic, which belongs to the group of dark, metallic body paints. This type of coating works well with the body lines, highlighting the contours and edges characteristic of the Mercedes W177. The metallic structure of the paint promotes even light distribution across the surface, which facilitates visual matching with other body elements in the same shade.

Performance and installation parameters

The door belongs to the Doors and door panels category, meaning it is a full-value side panel component, prepared for integration with the vehicle's factory parts. The design intended for installation in the rear left part of the body allows for:

• restoring the correct side line of the vehicle,
• ensuring adequate rigidity of the door zone,
• maintaining compatibility with factory seals and fittings,
• easier adjustment of the door relative to the sill and pillar.

The appropriately selected weight of the component promotes proper hinge operation and closing comfort, which is important for both durability and user experience during daily operation.

Benefits of using original Mercedes doors

Using original doors for the Mercedes W177 model reduces the risk of fitment issues typical of aftermarket replacements. The factory geometry facilitates:

• precise adjustment of gaps between the door, fender, and pillar,
• proper adhesion of seals,
• maintaining the appropriate level of acoustic insulation and protection against weather conditions.

This solution is particularly beneficial for repairs where maintaining the vehicle's original character and the visual consistency of the entire side body zone is a priority.

Condition of the component and practical application

The door is a used component, making it an attractive cost-effective alternative for body repairs, especially after mechanical damage or collisions. Choosing such a component allows for the restoration of the functionality and aesthetics of the vehicle's side section while maintaining the original construction, without the need to resort to non-factory solutions.

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

For drivers interested in a broader approach to performance modifications and handling characteristics, an article comparing various solutions regarding engine equipment and the selection of used OEM components may be helpful – more information can be found in the material Go-Kart Feeling XXL: used N18 turbocharger vs. B48 – what to choose for a Mini Cooper S?.