Mercedes W166 Door Window Strip Trim Molding Rear Left N/S A1667300119

Mercedes W166 Door Window Strip Trim Molding Rear Left N/S is an original body component from the Door seals group, designed for installation in the rear left area of the vehicle. The chrome finish ensures a consistent look with factory body details, and the OEM construction guarantees a proper fit to the window edge and door panel. This is a practical solution for users who want to restore the aesthetics of the car's side profile and maintain proper water drainage around the window.

Specifications and technical data

• SKU: A1667300119
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667300119
• Substitutable numbers: A1667300119, A 166 730 01 19
• Location on the vehicle: Rear, Left
• Color: Chrome
• Category: Door Seals

Purpose and function of the component

The described window strip is dedicated for installation in the rear left part of the body, along the lower edge of the door window. Its task is to:

• seal the contact point between the window and the door panel,
• protect against the ingress of dirt and moisture into the space inside the door,
• stabilize the window in the guide during the operation of the lifting mechanism,
• maintain an even side line of the body.

Thanks to this component, you reduce the risk of accelerated corrosion inside the door and improve the comfort of using the vehicle, especially in rainy conditions and during pressure washing.

Finish and fitment

The strip features a chrome finish that visually integrates with factory body trim. This type of surface complements both light and dark paint colors well, highlighting the window line and giving the vehicle a tidy appearance.

As an OEM component designed for a specific model from the Mercedes W166 family, the strip is engineered for the correct bending radius, length, and mounting geometry. This facilitates installation and allows for even pressure against the window and panel, without the need for modifications or fitting universal replacements.

Characteristics of the used product

The presented strip is a used component, which in practice means it comes from vehicle dismantling and may show signs of normal wear. This type of component is a good choice when you want to maintain the manufacturer's original specifications while optimizing repair or renovation costs.

In the case of window strips, it is particularly important to maintain the correct geometry and mounting points – using an original, used component allows you to maintain factory fitment with the window and door panel, which translates into stable operation of the window lifting mechanism and the reduction of unwanted wind noise.

Application in the repair process

Replacing the window strip is recommended, among other situations, when:

• the existing component is mechanically damaged or deformed,
• there is a loss of seal around the window and water appears inside the door,
• significant defects in the decorative coating have appeared on the surface,
• after a collision or bodywork repair, it is necessary to restore the factory look of the side body line.

Selecting the correct strip for the rear left side of the vehicle avoids installation problems and ensures proper cooperation with the window seals and guides.

Complementary Mercedes body components

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as additional window strips, edge seals, or window profiles, check the available parts in the Mercedes Door seals category.

For users interested in a broader approach to vehicle modernization, including the selection of used OEM components and their impact on driving characteristics, the article describing the comparison of turbochargers in sports models may be helpful – you can find it here: Go-Kart Feeling XXL – used N18 turbocharger versus B48 in Mini Cooper S.