Mercedes CLA X118 Door Rear Left N/S Kosmos 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 CLA X118 Door Rear Left N/S Kosmos Black Metallic - 191 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 consistency with the factory color palette and allows for an aesthetic, technically correct body repair without interfering with the vehicle's geometry.

Specifications and technical data

• SKU: A1187306900-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1187306900
• Substitutable numbers: A1187306900, A 118 730 69 00
• Location on the vehicle: Rear, Left
• Color: Kosmos Black Metallic - 191
• Category: Doors & Door Skins

Purpose and body fitment

The presented rear left door is designed specifically for the shooting brake/coupé body style of the Mercedes CLA X118, taking into account the characteristic side lines and contours. Its placement in the rear driver-side zone ensures proper fitment with the fender, rocker panel, and pillar, which facilitates achieving even gaps and correct closing.

The original construction ensures compatibility with factory hinge, lock, and seal mounting points, reducing the need for additional bodywork modifications. As a result, this component is well-suited for both post-accident repairs and the replacement of worn or corroded doors.

Color and paint layer

The door is finished in Kosmos Black Metallic, corresponding to the paint code 191 used in the Mercedes range. The metallic paint coating was factory-matched to the character of the CLA X118 body, which allows for:

• maintaining visual consistency of the entire side of the vehicle,
• limiting the scope of additional painting to potential blending,
• retaining the original depth and gloss effect characteristic of metallic black.

For body and paint shops, this means shorter preparation time for the component and easier color matching to the rest of the bodywork.

Functional and assembly characteristics

As an item from the Doors and door panels category, the product is responsible for protecting the side of the body, proper window operation, and interior sealing in the rear seat area. The design intended for rear left-side installation allows for correct adjustment of the lock, limiters, and hinges in accordance with factory tolerances.

The used door is a cost-effective solution for repairs where combining correct geometry with cost control is key. Its original origin promotes the preservation of proper side rigidity and compatibility with factory seals and hardware.

Application in professional repairs

The component is well-suited for service centers specializing in the Mercedes brand, as well as independent body shops that expect parts with predictable fitment. The rear left door for the CLA X118 in Kosmos Black Metallic allows for:

• restoring the original side line of the vehicle after a collision,
• reducing the scope of straightening and body filler work,
• maintaining a consistent body appearance in the premium segment.

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

Technical support and part selection

When working on the body and suspension, it is worth paying attention to the overall condition of the chassis to ensure the vehicle maintains correct geometry and stability after the door repair. Additional knowledge on the diagnostics and operation of suspension components can be found in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps to better plan the full scope of service work for premium class cars.