Mercedes X164 Window Gasket Seal Frame Rear Left N/S A1646701139

Mercedes X164 Window Gasket Seal Frame Rear Left N/S is an original body component from the Window seals and trims category, designed for installation in the rear left part of the vehicle. The precisely shaped profile ensures a tight fit against the glass, reducing noise, vibrations, and water ingress into the cabin. This is a practical solution for users who want to restore proper acoustic insulation and the functionality of the side window in their Mercedes.

Specifications and technical data

• SKU: A1646701139
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646701139
• Substitutable numbers: A1646701139, A 164 670 11 39
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and vehicle placement

The presented seal is dedicated to installation in the rear left window area, meaning it operates under demanding conditions – it is exposed to temperature changes, UV radiation, and frequent door opening and closing. The properly selected shape and material flexibility support correct window guidance and stable seating in the door frame.

Thanks to its factory fit for the Mercedes body structure, the seal works with the original guides and window lifting mechanism, which helps reduce the risk of jamming, leaks, or improper closing.

Benefits of using an original window seal

Using an original seal in the rear left part of the body translates into a number of practical utility benefits:

• better water drainage from the window edge and door frame,
• reduction of air drafts at higher speeds,
• stable vertical window guidance, which reduces its wear,
• more even pressure of the glass against the frame, promoting cabin tightness.

A properly selected seal helps maintain acoustic comfort inside and supports the protection of upholstery and door electrical components against moisture. This is particularly important in premium class vehicles, where high operational standards and the reduction of unwanted external noise are expected.

Product characteristics and fitment for Mercedes

The seal has been designed specifically for the Mercedes X-series body structure, which translates into a precise fit with the window edge and door profile. The original origin of the component means that factory dimensional tolerances are maintained, so installation does not require modifications or forced fitting.

The product comes from the Window seals and trims segment, which guarantees that its geometry has been developed for operation with a side window, rather than as a universal replacement. Such a solution is beneficial for users who want to maintain the structural integrity of the body and avoid problems with fitting trim elements.

Component condition and service application

The seal is offered as a used part, which allows for an economical repair of the vehicle's side zone while maintaining the manufacturer's original specifications. This is a good solution in situations where the existing seal has worn out, hardened, cracked, or been mechanically damaged during operation or bodywork and painting repairs.

The element will work well both for standard service replacement and for comprehensive renovation of the rear left door, when it is necessary to restore the proper tightness and aesthetics of the window edge.

Expansion of service work and technical knowledge

If you are planning a comprehensive repair or upgrade of the side window zone in your Mercedes and need other elements from the same group, such as additional seals, trim strips, or guide profiles, check the available parts in the Mercedes window seals and trims category.

For larger body and mechanical system projects, it is also worth expanding your knowledge about other vehicle sub-assemblies – including elements affecting exhaust flow and engine performance characteristics. If you are interested in the subject of exhaust systems and the selection of used components for premium car brands, check out the article Performance exhaust system: used manifolds and sports catalytic converters on the road, where you will find practical tips on selecting and operating such parts.