Mercedes GLA X156 Edge Seal Door Rear Right Left N/O/S Gassket A1566920176

Mercedes GLA X156 Rear Door Seal Right Left is an original part from the Doors and door panels category, designed for installation on the rear edge of the door in the Mercedes GLA X156 model. The used seal ensures a factory fit, a solid adhesion to the door panel, and stable sealing of the rear area, which translates to acoustic comfort and protection of the vehicle's interior.

Specifications and technical data

• SKU: A1566920176
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1566920176
• Substitutable numbers: A1566920176, A 156 692 01 76
• Location on the vehicle: Rear, Right, Left
• Category: Doors & Door Skins

Purpose and Vehicle Placement

The presented door edge seal is designed for installation on the rear pair of doors, with the possibility of use on both the right and left sides. This solution facilitates the selection of the correct part for body repairs, especially after collisions or replacement of door panels.

Thanks to its precise profile, the seal works with the door and body frame structure, limiting the penetration of water, dust, and noise from the outside. This is particularly important in cars used daily, where door sealing affects driving comfort and upholstery durability.

Technical Characteristics and Fitment

As an original Mercedes part, the door edge seal maintains the correct geometry, flexibility, and rigidity required by the vehicle manufacturer. The rubber profile is adapted to the edge of the rear pair of doors, which minimizes the risk of deformation during repeated opening and closing.

The seal is intended for direct installation in factory mounting points, without the need for modifications or forceful adjustments. This allows for maintaining the continuity of the sealing line and proper pressure along the entire length of the door edge.

Application in Body Repairs

The part will be particularly useful in situations where:

• the original seal has been damaged due to door edge corrosion or bodywork and painting operations,
• after replacing the door, it is necessary to restore the factory sealing level,
• leaks occur, resulting in increased noise, water ingress, or drafts in the rear part of the cabin.

Using an original seal from the Doors and door panels category helps maintain the integrity of the body structure and reduce the risk of further problems with corrosion and interior dampness.

Product Condition and Benefits of Choosing a Used Part

The seal is offered as a used part, which represents a reasonable compromise between cost and maintaining the original manufacturer's specifications. In practice, this means the possibility of restoring proper door sealing without the need to invest in a new part, while maintaining a factory fit.

For drivers considering wider use of aftermarket parts, including mechanical components, an expert guide describing selection procedures by OEM numbers and real differences between new and used components may be helpful – this is discussed in detail in the article Why it's worth buying used gearboxes and engines – facts instead of myths.

Selection and Other Mercedes Body Parts

When selecting a seal for a specific GLA X156 model, it is worth paying attention to compatibility with the body version and door configuration to maintain the continuity of the sealing line and proper pressure around the entire perimeter. If you are also planning to replace other door-related structural elements during body repairs, such as panels, reinforcements, or additional seals, check the available parts in the Mercedes Doors and door panels category.