Mercedes W166 Boot Trunk Trim Rear Left N/S Lateral Cover Panel A1666900141

Mercedes W166 Boot Trunk Trim Rear Left N/S Lateral Cover Panel is an original cargo area trim component designed for installation in the rear left section of the vehicle. Thanks to its factory-fit design, it ensures a cohesive look for the trunk interior while allowing for an aesthetic and functional layout of this zone. It is a practical solution for users who want to restore the original appearance of the trunk or replace a damaged part with an original Mercedes trim.

Specifications and technical data

• SKU: A1666900141
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666900141
• Substitutable numbers: A1666900141, A 166 690 01 41
• Location on the vehicle: Rear, Left
• Category: Trim

Purpose and vehicle placement

The presented panel is a trunk trim component mounted in the rear left section of the body. Its purpose is to cover the side body structure, dampen this area, and create an organized finishing surface.

• Dedicated for installation on the left side in the rear part of the vehicle.
• Serves as a side cover for the cargo space, improving aesthetics and ergonomics.
• Helps protect structural elements and installations located behind the trim.

Technical and functional characteristics

As a component from the Trims, decorative strips, and decorations group, the panel has been designed to work with factory mounting points in the body. Properly contoured geometry facilitates installation and ensures stable seating in the vehicle.

• Factory fit for the W166 series body, with no modifications required.
• Profiling adapted to the shape of the trunk, which reduces the risk of looseness and squeaking.
• Surface prepared for use in the cargo area, resistant to typical operational loads.

By maintaining the original geometry, the component allows for the maintenance of a consistent trunk finish line and the proper operation of adjacent components, such as other panels, strips, or accessory mounts.

Condition and benefits of using an original component

The offered panel is a used part, which allows for combining a reasonable purchase cost with the preservation of the manufacturer's original specifications. Unlike aftermarket replacements, the OEM component ensures proper fitment with other trims as well as consistency with factory colors and material texture (within a given trim level).

• Original geometry – no need for adjustments during installation.
• Consistent appearance with other trunk trim elements.
• Possibility to restore the factory finish standard after a collision or wear of the previous panel.

Using an original trim in the rear left part of the trunk helps maintain the proper level of acoustic comfort and aesthetics, which is particularly important in premium vehicles such as Mercedes.

Application in service and trunk interior renovation

The trunk side panel will work well both in professional body and paint shops and for users independently assembling elements for interior repair or renovation. It can be used for:

• post-accident repairs in the rear zone,
• renovation of worn or damaged trunk trim,
• restoring the vehicle to a state close to factory condition after modifications.

Selecting the right component is facilitated by the manufacturer's markings and clear identification of the placement on the vehicle, which minimizes the risk of errors during ordering and installation.

Expanding the Mercedes trunk trim

If you are planning a comprehensive repair or upgrade of the trunk area in your Mercedes and need other elements from the same group, such as additional trims, decorative strips, or decorative side panels, check the available parts in the Mercedes Trims, decorative strips, and decorations category.

More about the use of dismantled parts

If you are interested in a broader context of using used body and interior components for modifications or repairs, it is worth checking out the guide on tuning and using dismantled components – you can find it in the article Emotions and design – visual and mechanical tuning of a Seat using dismantled components.