Pillar D Cover Mercedes ML W166 Interior Rear Trim Left N/S Grey A1666900525

The Mercedes ML W166 Interior Rear Left Grey D-Pillar Trim is an original interior trim element designed for installation in the rear left part of the cabin. This grey pillar trim provides an aesthetic finish to the side body area, ensuring a cohesive look for the upholstery and secure mounting of the covered components. Thanks to its factory fit, it is a practical solution for post-accident repairs, replacing damaged trims, or completing the interior.

Specifications and technical data

• SKU: A1666900525
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1666900525
• Substitutable numbers: A1666900525, A 166 690 05 25
• Location on the vehicle: Rear, Left
• Color: Grey
• Category: Trim

Purpose and Body Fitment

The presented D-pillar trim is specifically designed for the Mercedes ML W166 generation, taking into account the geometry of the rear body. Its placement in the rear-left area makes it responsible for the aesthetic and functional finishing of the side of the trunk and the rear passenger area.

Being part of the Trims, Decorative Strips, and Decorations group means the trim is structurally adapted to the original mounting points, which facilitates installation and reduces the risk of improper fit with other interior panels.

Material Characteristics and Color

The grey color of the trim has been selected to match the factory interior finish palette of the Mercedes ML W166. This allows the element to maintain a uniform upholstery color scheme, without visible shade differences between adjacent panels. The neutral color also blends easily with other interior equipment variants.

As an OEM Mercedes part, the D-pillar trim features a construction adapted for the rear of the vehicle – including contact with seals, trunk liners, and mountings for seat belts and other components in this area.

Protective and Functional Role

The trim serves several important functions within the interior structure:

• conceals the structural elements of the D-pillar and the wiring within it,
• stabilizes the finish of the cabin's side area, improving the overall rigidity of the upholstery,
• protects the pillar surface from scratches and minor mechanical damage,
• contributes to maintaining an organized appearance of the rear interior.

Thanks to its precise fit for the specific mounting location, the part requires no modifications or forceful adjustments, which translates to efficient installation and a predictable final result.

Application in Repairs and Interior Renovation

The rear left grey D-pillar trim is particularly suitable for situations where:

• a damaged or cracked trim needs replacement after a collision or intensive use,
• an interior renovation is underway with an emphasis on restoring the factory appearance,
• upholstery elements are missing after previous body repairs.

The used nature of the part allows for economical interior restoration while maintaining the original manufacturer's specifications, which is particularly important for vehicles where compliance with the factory finish standard is crucial.

Complementary Mercedes Interior Trim Elements

If you are planning a comprehensive repair or upgrade of the interior trim area in your Mercedes and need other elements from the same group, such as trims, decorative strips, or decorative upholstery panels, check the available parts in the Mercedes Trims, Decorative Strips, and Decorations category.

Summary

The Mercedes ML W166 Interior Rear Left Grey D-Pillar Trim is a practical choice for repairs and completing the upholstery in the rear of the vehicle. Its original origin, precise fit for the specific mounting location, and neutral grey color allow for maintaining a cohesive cabin appearance and proper alignment with other trim elements. For users who want to consciously care for the technical and visual condition of their car, additional tips on operation and economical component repair can be found in the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings.