Mercedes X164 Quarter Window Moulding Trim Seal Rear Left N/S A1646905380

Mercedes X164 Quarter Window Moulding Trim Seal Rear Left N/S is an original body component from the Doors and body panels category, designed for installation in the rear left section of the vehicle. The moulding is responsible for the aesthetic and functional finish of the window area, supporting body protection against dirt and moisture while ensuring a consistent look for the side of the vehicle.

Specifications and technical data

• SKU: A1646905380
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1646905380
• Substitutable numbers: A1646905380, A 164 690 53 80
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the window moulding

The presented moulding has been designed specifically for the rear left section of the body in X164 series models, ensuring a proper fit to the bodywork shape. Its placement in the window area allows for effective sealing of the space between body panels, which limits the ingress of water, dirt, and small debris into the body structure.

The properly selected profile of the moulding contributes to:

• stable adhesion to the metal surface,
• maintaining correct gaps between body components,
• preserving the factory side line of the vehicle.

Benefits of using an original Mercedes component

Using an original window moulding in a Mercedes vehicle allows for maintaining the structural and visual consistency of the body. This component has been developed for the specific geometry of the X164 body, which translates into correct fitment with doors, fenders, and other body panels.

Key advantages of using this moulding include:

• preserving the factory appearance of the side of the body,
• reducing the risk of corrosion in the contact area of the sheets thanks to better water drainage,
• easier installation compared to aftermarket parts with a universal profile.

Installation and operational characteristics

The rear left window moulding is designed for installation in the rear left part of the vehicle, which eliminates the need for adjustments or shape modifications. The component's design is prepared to work with factory mounting points on the body, which facilitates bodywork and reduces service time.

In practice, this means that:

• the element can be installed using standard bodywork techniques,
• there is no need to interfere with the structure of the door or adjacent panels,
• correct body lines and gaps are maintained after installation.

Condition and use in the repair process

The offered moulding comes from the used parts segment, which allows for economical repair while maintaining the manufacturer's original specifications. This type of component is particularly useful for post-accident repairs, bodywork corrections, and restoring the vehicle to a state close to factory condition after interventions in the rear body area.

Choosing an original used window moulding is a good solution wherever compliance with factory geometry is important, and at the same time, the costs of the entire service operation are significant.

If you are planning a comprehensive repair or upgrade of the side body area in your Mercedes and need other elements from the same group, such as skins, reinforcements, or additional panels, check the available parts in the Mercedes Doors and body panels category.

To better plan service work within the body and associated systems, a guide on the selection and operation of thermal comfort components may be helpful – you can find it in the article Air conditioning and heating – part selection and maintenance for year-round comfort.