Mercedes-Benz S-Class W221 Rear Left N/S Door Top Upper Hinge Obsidian Black

Mercedes-Benz S-Class W221 Rear Left N/S Door Top Upper Hinge Obsidian Black is a precision body component from the Doors and door panels group, designed for installation on the driver's side. This used, original component ensures proper door mounting geometry and stable operation of the door while maintaining color consistency with the Obsidian Black Metallic paint.

Specifications and technical data

• SKU: A2217300937-OB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217300937
• Substitutable numbers: A2217300937, A 221 730 09 37, EM
• Location on the vehicle: Rear, Left
• Color: Obsidian Black Metallic - 197
• Category: Doors & Door Skins

Purpose and function of the component

The presented upper hinge is designed for installation in the rear left section of the Mercedes-Benz S-Class W221 generation limousine body. It is responsible for stable door guidance during opening and closing, maintaining the door in the correct position relative to the body, and limiting unwanted play within the mounting area.

As a structural element from the Doors and door panels group, the hinge works in conjunction with the door frame, body pillar, and latch, influencing:

• proper door sealing against weatherstrips,
• even load distribution during door operation,
• user comfort – smooth opening and closing,
• reduction of stress in the sill and pillar area.

Color and paint matching

The hinge is factory-finished in Obsidian Black Metallic, which allows for aesthetic matching to a body of the same color. Thanks to this, when replacing the component, it is often possible to reduce or completely avoid additional painting, which shortens repair time and reduces costs.

The metallic paint coating is matched to the standard used in the Mercedes-Benz S-Class W221, which facilitates maintaining a consistent appearance of the entire side plane of the vehicle after body and paint work.

Installation characteristics

The rear left upper door hinge has been designed as a component dedicated to a specific mounting position – rear, left side. This means that the mounting geometry, operating angle, and range of motion are optimized for this specific location in the W221 body.

With proper installation, following service procedures, the hinge enables:

• precise adjustment of the door position relative to the fender and pillar,
• restoration of factory gaps between body elements,
• maintenance of proper rigidity of the door-to-body connection.

Condition and service application

The offered hinge is a used part, sourced from dismantling, which is a cost-effective solution for accident repairs or replacing worn-out components in daily-driven vehicles. Choosing an original component from the secondary market allows for maintaining material and structural compatibility with other body elements.

Such a solution is particularly useful in situations where it is necessary to restore full door functionality after mechanical damage, corrosion around the mountings, or excessive wear resulting from intensive vehicle use.

Expanding door repairs

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

Technical support and drivetrain knowledge

When working with advanced premium models such as the Mercedes-Benz S-Class W221, it is worth expanding your knowledge of technical solutions used in drivetrains and bodywork. For users interested in operating all-wheel-drive vehicles and selecting appropriate components for repairs, an article comparing different AWD systems may be helpful – xDrive, 4Matic, quattro or 4Motion – a comparison of AWD systems from BMW, Mercedes, Audi, and VW.