Mercedes SLK R172 Rear Left Interior Seal Trim A1726310198

Mercedes SLK R172 Rear Left Interior Seal Trim is a precisely fitted body component designed for installation in the rear left section of the vehicle. It ensures a tight seal between the fender and adjacent panels, limiting the ingress of moisture, dirt, and small debris into the body structure. Thanks to a design consistent with factory specifications, it maintains the proper geometry and aesthetics of the rear wheel arch area, supporting long-term body protection.

Specifications and technical data

• SKU: A1726310198
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1726300431
• Substitutable numbers: A1726300431, A 172 630 04 31
• Location on the vehicle: Rear, Left
• Category: Boot & Hatch Lids

Purpose and function of the component

The described seal trim operates in the area of the rear left fender, where it is responsible for sealing sheet metal and plastic joints. Its tasks include:

• limiting the ingress of water and mud into the space between the fender and other body components,
• stabilizing the edge of the bodywork in the rear part of the vehicle,
• reducing the risk of accelerated corrosion in the wheel arch zone,
• maintaining a consistent visual line of the rear body section.

Thanks to its appropriate profile, the trim works with factory mounting points, which facilitates installation and helps maintain proper fitment of the rear body components.

Compatibility and fitment for Mercedes R172

The component has been designed for the Mercedes R172 body structure, which means maintaining the correct geometry in the rear left area. The placement on the vehicle is clearly defined as rear – left side, which minimizes the risk of error when selecting parts for a specific side of the body.

Such fitment is particularly important during post-accident repairs, replacing corroded fragments, or restoring the factory look of the bodywork after body and paint work. The appropriate seal trim allows for maintaining the panel gap lines and the correct adhesion of adjacent components.

Performance characteristics and installation

The rear left fender seal trim belongs to a group of body components that operate in harsh conditions – they are exposed to water, road salt, temperature changes, and vibrations. Using the correct component allows you to:

• increase the resistance of the wheel arch zone to dirt and moisture,
• limit the ingress of contaminants into the interior of body profiles,
• maintain the stability of the fender mounting in the rear part of the vehicle,
• reduce potential rattles and looseness resulting from improper sealing.

The item from the Trunk lids and rear parts category is intended for use in the rear body zone, which is why its correct installation is important both for structural protection and for the overall aesthetics of the vehicle.

Use in body repairs

Replacing the rear left fender seal trim is recommended in situations where the existing element is mechanically damaged, deformed, or has lost its elasticity. In workshop practice, this part is often installed:

• after body repairs in the rear left part of the body,
• after collisions involving the rear left fender or trunk area,
• during comprehensive body restoration when removing corrosion spots in the wheel arch area.

Selecting the right seal trim allows for restoring the factory alignment of edges and gaps between panels, which is important both from a technical and visual point of view.

Offer expansion – Mercedes Trunk lids and rear parts

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other elements from the same group, such as reinforcements, panels, or additional trims, check out the available parts in the Mercedes Trunk lids and rear parts category.

Technical knowledge and part selection

When planning body repairs, it is worth relying on proven solutions and reliable sources of technical information. If you are interested in comparing the construction of sports versions of cars with standard variants, including differences in drivetrains, brakes, and chassis, the article Audi RS vs other models – what is hidden under the hood and chassis? may be helpful, as it shows how manufacturers design individual vehicle zones for durability and performance.