Mercedes W166 Dashboard Side Dash Trim Coating Right O/S A1666800407

Mercedes W166 Dashboard Side Dash Trim Coating Right O/S is an original interior component designed for the right side of the cockpit in W166 series vehicles. This factory-made trim ensures a consistent finish for the dashboard, improves cabin aesthetics, and helps in precisely masking mounting points and structural edges. By maintaining the original geometry, it represents a reliable solution for interior repairs and restoration.

Specifications and technical data

• SKU: A1666800407-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666800407
• Substitutable numbers: A1666800407, A 166 680 04 07, A1666808603, A 166 680 86 03
• Location on the vehicle: Right
• Part type: Dash Cover
• Category: Dashboard Panels

Purpose and function of the component

The described trim is part of the Dashboard group and is responsible for the aesthetic and functional finishing of the right side of the cockpit. Its tasks include:

• masking structural edges and dashboard mounting points,
• complementing the interior design line characteristic of Mercedes models,
• providing a stable closure for the side part of the dashboard, which reduces the risk of looseness and unwanted noises while driving.

The placement on the right side of the vehicle allows for precise fitting to the factory shape of the cockpit, without the need for modifications or adjustments required by aftermarket replacements.

Benefits of using the original trim

Using an original side dashboard trim tailored to the W166 series provides a number of practical benefits:

• Consistent interior look – maintaining a uniform texture and design line of the cockpit.
• Factory fit – proper adhesion to adjacent dashboard elements, without gaps or tension.
• Stable assembly – construction prepared for the original mounting points in the bodywork.
• Seamless integration with other interior panels and covers.

Thanks to this component, it is possible to both repair a damaged dashboard and aesthetically complete a missing fragment of the cockpit after previous service work.

Assembly characteristics

The trim has been designed for installation in a specific area of the interior, which facilitates service work and shortens the time required for replacement. The construction intended for the right side of the vehicle allows for:

• precise positioning relative to the dashboard edges,
• utilization of factory mounting points without additional adapters,
• maintaining the appropriate rigidity of the side part of the cockpit.

Such a solution is particularly beneficial for professional post-accident repairs and interior reconstruction after the disassembly of other components.

Application in Mercedes W166 vehicles

Mercedes W166 Dashboard Side Dash Trim Coating Right O/S has been developed with the specific geometry of this series' dashboard in mind. This means that the shape, parting lines, and the way it adheres to adjacent panels are consistent with the factory interior design. As a result:

• the original cabin ergonomics are preserved,
• the element does not interfere with other cockpit components,
• it is easier to maintain the high visual quality of the interior after repair.

Condition and service application

The offered trim comes from the used parts segment, which makes it a reasonable choice for repairs where combining functionality with cost control is key. This type of element works perfectly for:

• repairs after mechanical damage to the side part of the cockpit,
• replacing missing panels after previous disassemblies,
• restoring the completeness of the interior in fleet or private vehicles.

If you are planning a comprehensive repair or upgrade of the cockpit area in your Mercedes and need other elements from the same group, such as side panels, upper covers, or lower console segments, check the available parts in the Mercedes Dashboard category.