Mercedes W166 W251 Wing Mirror Cover Cap Door Left N/S Housing Black

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W166 W251 Wing Mirror Cover Cap Door Left N/S Housing Black is a practical body component that allows you to aesthetically and functionally restore the factory look of your vehicle. The black finish and fitment for the front left side of the body ensure a consistent appearance with the rest of the car's exterior. As part of the Mirror components group, the product provides a solid base for repairing a damaged mirror or completing a set after a collision.

Specifications and technical data

• SKU: A1668109900-BLK
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1668109900
• Substitutable numbers: A1668109900, A 166 810 99 00
• Location on the vehicle: Front, Left
• Color: Black
• Category: Mirror Components

Purpose and fitment

The cover is designed for installation on the front left side of the vehicle, replacing the factory door mirror housing. The design corresponds to the solutions used in Mercedes SUV and VAN models from the W166 and W251 series, which facilitates a perfect fit with the original mirror body and its adjustment mechanism.

The black color of the housing allows for a quick restoration of the mirror's consistent look, and if necessary, it can serve as a base for further painting to match the body color. Thanks to this, the element works well both for post-accident repairs and for replacing a worn or scratched cover.

Technical and functional characteristics

As a part from the Mirror components category, the cover serves a protective function for the internal mirror components – the glass, electrical wiring, and adjustment mechanism. The rigid construction of the housing helps to limit the impact of external factors, such as dirt or moisture, on the mirror's operation.

The product is used, which in practice means a favorable cost-to-functionality ratio while maintaining the original geometry and mounting points. This type of solution is particularly attractive for maintenance repairs, where the priority is to efficiently restore full mirror functionality without the need to invest in a new complete unit.

Benefits of using an original mirror housing

Using an original mirror cover for a Mercedes brings a number of practical benefits:

• factory fitment to the mirror shape and body lines,
• maintaining the vehicle's consistent aesthetics thanks to the correct geometry of the element,
• possibility of use in post-accident repairs without interfering with the door structure,
• easier installation thanks to the mounting points provided by the manufacturer.

Thanks to this, the mirror housing cover works well both in body and paint workshops and for DIY body repairs, where precise fitment and a predictable final result are essential.

Using used parts in Mercedes-Benz

Choosing used body components, such as mirror housings, is a sensible way to reduce service costs while maintaining the manufacturer's original specifications. In the case of the Mercedes brand, this often allows for the restoration of full functionality and aesthetics of the vehicle without compromising on fitment. You can find more practical information about selecting and the advantages of original dismantled components in the article: Used parts for Mercedes – original dismantled components.

Expanding repairs in the Mercedes mirror area

If you are planning a comprehensive repair or upgrade of the side mirror area in your Mercedes and need other elements from the same group, such as housings, mirror glass, or mirror turn signals, check out the available parts in the Mercedes mirror components category.