Mercedes SLK R172 Window Seal Rubber Gasket Rear Left N/S A1726930117

The Mercedes SLK R172 Window Seal Rubber Gasket Rear Left N/S is a precise, original body component designed for the rear left section of the vehicle. It ensures a tight fit for the window, reduces wind noise, and protects the interior from moisture, which translates into stable acoustic comfort and improved durability of interior components. Thanks to the factory fit for the SLK R172 model, installation is predictable and technically straightforward, and the body line remains consistent with the original design.

Specifications and technical data

• SKU: A1726930117
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1726930117
• Substitutable numbers: A1726930117, A 172 693 01 17
• Location on the vehicle: Rear, Left
• Category: Door Seals

Purpose and function of the rear window seal

The described seal belongs to the Door seals group, but in this case, it operates in the rear left body area of the SLK R172 roadster. Its tasks include:

• sealing the contact point between the window and the body frame on the rear left side,
• limiting the ingress of water and contaminants into the interior,
• reducing wind noise at higher speeds,
• stabilizing the window position in the guide rail.

A properly selected seal in this area is important for driving comfort, protection of the upholstery, and correct window closing during daily operation.

Benefits of using an original Mercedes seal

The rear left window seal in the SLK R172 model has been designed specifically for the body geometry of this roadster. In practice, this means:

• factory-perfect shape fit to the frame and window profile,
• proper pressure along the entire contact length,
• consistent appearance with other sealing elements,
• maintenance of the acoustic characteristics designed by the manufacturer.

As a result, after replacement, you can restore the original sealing parameters in the rear left part of the body without the need for additional sealants or modifications to body components.

Vehicle placement and installation aspects

The component is intended for installation in the rear – left side zone of the vehicle. Such clear placement identification facilitates the selection of the correct part for post-accident repairs, replacement after wear and tear, or when eliminating leaks appearing in a specific corner of the body.

During installation, it is worth paying attention to:

• thorough cleaning of the contact surface,
• checking the window guides and lifting mechanism,
• even seating of the seal along its entire length.

This approach allows you to fully utilize the potential of the component and reduce the risk of recurring leaks or noise in the rear left window area.

Product characteristics and condition

The offered seal comes from a Mercedes vehicle and is a secondary market component. A used component of this type is a sensible solution for repairs where maintaining original geometry and material flexibility is key, while simultaneously optimizing costs. In the case of body seals, it is essential that they retain appropriate elasticity and profile continuity – these are the features that determine the effectiveness of the seal in the long term.

Comprehensive service for the door and window zone in the Mercedes SLK

If you are planning a comprehensive repair or upgrade of the door zone in your Mercedes and need other elements from the same group, such as door frame seals, side window seals, or door sill seals, check the available parts in the Mercedes door seals category.

For drivers who are simultaneously diagnosing disturbing noises from the chassis and want to better plan their repair budget, a guide describing the causes of knocking and the possibilities of using dismantled parts may be helpful – details can be found in the article on a clever way to restore steering precision without excessive service costs.