Mercedes-Benz S-Class W221 Rear Left N/S Door Bottom Lower Hinge Obsidian Black

The lower hinge for the rear left door of the Mercedes-Benz S-Class W221 in Obsidian Black Metallic is an original body part designed for precise installation in a luxury F-segment sedan. This part, from the Doors and door panels category, ensures proper door wing guidance, stable support, and correct closing geometry, which translates to user comfort and proper operation of locks and seals.

Specifications and technical data

• SKU: A2217301137-OB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2217301137
• Substitutable numbers: A2217301137, A 221 730 11 37, EM
• Location on the vehicle: Rear, Left
• Color: Obsidian Black Metallic - 197
• Category: Doors & Door Skins

Purpose and Function in the W221 Body

The presented lower hinge is intended for installation in the rear left area of the S-Class W221 generation body. It is responsible for carrying the door's load, maintaining its alignment, and controlling its movement during opening and closing. A correctly selected part allows for maintaining factory gaps between the door and the fender and sill, which is important for both aesthetics and protection against noise and moisture.

As an original Mercedes component, the hinge works with factory mounting points in the body and door wing, which facilitates installation and reduces the need for additional adjustments. This makes restoring proper door operation after a collision, panel replacement, or bodywork repair significantly easier.

Color and Paint Matching

The part is factory finished in the Obsidian Black Metallic – 197 shade, widely used in the S-Class W221 range. Using a hinge in the same paint code helps maintain visual consistency in the door edge and pillar area, especially where the hinge is partially visible when fully open. For body and paint shops, this means less corrective work and faster color matching to the existing finish.

A color matching the Mercedes factory palette also reduces the risk of shade differences at the contact points of elements, which is important for repairs of premium vehicles where precision and maintaining the original body character are crucial.

Characteristics of the Used Part

The offered hinge is a used part, sourced from disassembly, which is a cost-effective solution for users seeking original Mercedes components in a more economical format. A used part retains its factory geometry and construction, while also reducing repair costs compared to a new replacement.

For door hinges, maintaining appropriate rigidity and correct mounting points is key – using an original part from disassembly helps maintain proper door operation, without excessive play or unwanted stress on the panel.

Benefits of Using an Original Hinge

• Factory fit to the door and pillar construction of the S-Class W221, without the need for modifications.
• Color consistency thanks to the Obsidian Black Metallic paint, important for premium body repairs.
• Ability to restore proper door operation after mechanical damage or corrosion of the previous hinge.
• Economical solution through the use of an original, used Mercedes part.

Mercedes Doors and Door Panels – Expansion and Repairs

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

For users and workshops who want to deepen their knowledge on selecting components by part numbers and proper component operation, the guide article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair, which discusses, among other things, principles of identifying parts by OEM numbers and good service practices, may be helpful.