Mercedes C118 Door Seal Edge Gasket Rear Right O/S Rubber Sealing A1186920800

The Mercedes C118 Right Rear Door Seal Rubber Seal is an original body part designed for the rear right door area of Mercedes vehicles. Its precisely molded rubber profile ensures a tight seal against the car body, reducing noise, moisture, and unwanted vibrations during driving. This is a practical solution for users looking to restore factory-level sealing and acoustic comfort in their car.

Specifications and technical data

• SKU: A1186920800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1186920800
• Substitutable numbers: A1186920800, A 118 692 08 00
• Location on the vehicle: Rear, Right
• Category: Door Seals

Purpose and Function of the Door Seal

This seal belongs to the Door Seals category and is fitted for the rear right side of the body. Its function is to create a flexible barrier between the door edge and the body frame, which helps to:

• limit the penetration of water and moisture into the cabin,
• reduce wind noise and external noise,
• minimize squeaking and friction between the door and the body,
• maintain a secure closure of the rear right door.

Thanks to its appropriately selected rubber compound hardness, the seal functions correctly with frequent door opening and under varying operating conditions.

Benefits of Using an Original Mercedes Seal

The original right rear door seal for Mercedes has been designed for the specific C118 body model, ensuring a precise fit to the contours and shape of the door frame. In practice, this means:

• stable seating in factory mounting points,
• no need for modifications or profile trimming,
• a visually and functionally consistent sealing perimeter around the door,
• easier maintenance of sealing after hinge or lock adjustments.

Such a precise fit helps maintain the comfort of using the rear doors and reduces the risk of leaks in critical contact areas between the rubber and the body.

Component Characteristics and Installation

The seal is made of flexible rubber with a profile adapted for the rear right part of the body. It is designed for installation in factory sockets and guides, which facilitates proper placement along the entire door perimeter. During installation, it is advisable to pay attention to:

• thorough cleaning of the contact surface from any remnants of the old seal,
• correct positioning of the corners to avoid twisting the profile,
• checking the door closure after installing the new rubber seal.

Proper installation ensures full utilization of the sealing performance of the component and restores the correct operating conditions for the rear right door of the vehicle.

Application in Service and Body Repairs

The right rear door seal is suitable for both localized collision repairs and gradual renovation of the door area in a Mercedes. Replacing a worn-out rubber seal is particularly recommended when:

• water streaks appear around the sills or door upholstery,
• there is a noticeable increase in noise at higher speeds,
• visible cracks, abrasions, or deformations of the old seal are present.

Choosing a component from the same construction group helps maintain the technical consistency of the body and reduces the risk of fitting issues.

Expanding the Scope of Service Work

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other parts from the same group, such as additional perimeter seals, pillar seals, or sill seals, check the available parts in the Mercedes Door Seals category.

To better plan your purchases and efficiently gather various body and interior components in one place, it is worth consulting the One-Stop-Shop guide: Comprehensive Sourcing in One Place.