Mercedes X117 Boot Trunk Tailgate Sealing Rubber Gasket Seal A1177400178

Mercedes X117 Boot Trunk Tailgate Sealing Rubber Gasket Seal is a precisely fitted body component designed for the rear of the vehicle, responsible for the tightness and stable closing of the tailgate. The original design ensures proper adhesion to the body edge, which translates into effective protection of the trunk interior against water, dust, and noise. It is a practical solution for users who want to restore the factory sealing parameters in their Mercedes.

Specifications and technical data

• SKU: A1177400178
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1177400178
• Substitutable numbers: A1177400178, A 117 740 01 78
• Location on the vehicle: Rear
• Category: Boot & Hatch Lids

Function and application of the tailgate seal

The tailgate seal in the X117 body type is responsible for maintaining a tight connection between the tailgate and the rear part of the body. This component operates in an area exposed to intense weather conditions, which is why its condition has a direct impact on:

• limiting the ingress of water and moisture into the luggage compartment,
• reducing noise and vibrations coming from the rear of the body,
• stable guidance of the tailgate during closing,
• protecting the paint edge against abrasion.

A well-chosen seal helps maintain acoustic comfort in the interior and supports the durability of the trunk upholstery elements.

Construction and fitment for the Mercedes X117 body

The presented seal has been designed specifically for the rear of the Mercedes X117 body, ensuring its geometry matches the manufacturer's factory specifications. This means that the profile, cross-section, and routing line along the tailgate perimeter are adapted to the original mounting points.

Such fitment translates into:

• secure adhesion to the tailgate and body edges,
• reduced risk of leaks in the corners and near the hinges,
• proper cooperation with the lock and closing mechanism.

The original Mercedes origin helps maintain the structural integrity of the entire rear body section, without the need for modifications or fitting aftermarket replacements.

Characteristics of the used component

The tailgate seal is offered as a used component, meaning it comes from vehicle dismantling. This type of part often allows for an economical repair while maintaining the original manufacturer's specification. In practice, this means the possibility of restoring proper tightness to the rear of the body without investing in more expensive solutions.

Choosing an original, used seal is particularly beneficial where compliance with the factory design is important, while at the same time controlling vehicle operating costs is a priority.

Benefits of installation in the rear of the vehicle

Installing a properly selected seal in the rear body zone affects the daily use of the car in several areas:

• increases protection of transported luggage against moisture,
• limits the ingress of dust and dirt from the outside,
• improves perceived acoustic comfort in the cabin,
• supports the maintenance of stable operation of the lock and tailgate hinges.

Thanks to this, the Mercedes X117 Boot Trunk Tailgate Sealing Rubber Gasket Seal is a practical element that restores proper operating conditions for the rear of the vehicle, especially after noticing leaks, window fogging from the trunk side, or increased noise.

Related Mercedes rear body components

If you are planning a comprehensive repair or upgrade of the rear zone in your Mercedes and need other elements from the same group, such as tailgate hinges, locks, or lift actuators, check the available parts in the Mercedes tailgates and rear parts category.

For users interested in a broader approach to diagnostics and component selection based on manufacturer markings and VIN, an article describing the principles of operation and maintenance of vehicle subassemblies may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.