Mercedes W169 Rear Boot Lid Tailgate Frame Seal Gasket A1697401278

Mercedes W169 Rear Boot Lid Tailgate Frame Seal Gasket is a precisely fitted body component responsible for the sealing of the vehicle's rear section. Thanks to its specific profile and flexible design, the seal effectively limits the ingress of water, dust, and noise into the luggage compartment, improving daily driving comfort. It is a practical solution for users who want to technically restore the factory functionality of the tailgate in their Mercedes.

Specifications and technical data

• SKU: A1697401278
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1697401278
• Substitutable numbers: A 169 740 02 78, A1697400278, A1697401278, A 169 740 12 78, A 169 740 06 78, A1697400678, BG
• Location on the vehicle: Rear
• Color: Black
• Category: Door Panels

Purpose and function of the tailgate seal

The presented seal is designed for installation in the rear part of the body, along the perimeter of the tailgate. Its task is to create a stable, flexible barrier between the tailgate and the bodywork, which limits the risk of moisture entering the trunk and minimizes unwanted rattling and resonance while driving. The properly selected cross-section of the seal allows for even adhesion to the surface, which translates into consistent operation of the entire tailgate assembly.

Material, color, and visual fit

The seal is black, ensuring a neutral, factory-style fit for most Mercedes W169 body configurations. The dark color effectively masks operational dirt and visually integrates with the plastic and metal elements of the vehicle's rear. As a result, after installation, a consistent and aesthetic look of the trunk edge is maintained, and the contact line between the tailgate and the body remains visually tidy.

Installation and operational characteristics

The tailgate seal is a component that is practically installed by seating it onto the edge of the metal sheet in the rear part of the body. The properly selected profile allows for stable retention on the surface without the need for non-standard installation solutions. Once correctly fitted, the seal works in conjunction with the lock and tailgate hinges, ensuring even pressure along the entire perimeter. In daily use, this translates into:

• limiting the ingress of water and dust into the luggage compartment,
• reducing noise coming from the rear of the vehicle,
• more stable closing of the tailgate.

Condition of the item and service application

The offered seal is a used part, making it a reasonable choice for vehicle maintenance when the priority is to functionally restore the tightness of the tailgate while keeping costs controlled. This type of component works perfectly when replacing a worn, brittle, or mechanically damaged seal, allowing for improved trunk comfort without interfering with the body structure. For Mercedes W169 owners, this is a practical solution that enables restoring the proper operation of the tailgate in a workshop environment or during DIY installation.

Integration with the interior and trim elements

Although the product is assigned to the Door upholstery category, in practice, it serves a sealing function in the area of the rear tailgate. Its application indirectly affects the condition of the trim elements in the trunk – limiting moisture and contaminants helps maintain the upholstery, side panels, and other interior components in better condition. This is particularly important in vehicles operated in variable weather conditions, where proper sealing of the rear body section is significant for long-term interior protection.

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 cards, trim panels, or protective strips, check the available parts in the Mercedes door upholstery category.

For drivers interested in comparing technical solutions used in different brands and segments, including sports versions of models, it may be useful to discuss engine, brake, and chassis designs – you can find more on this topic in the article Audi RS vs other models – what is hidden under the hood and chassis?.