Mercedes W166 Front Door Card Courtesy Light Lamp Left Right N/O/S A0028201901

Mercedes W166 Front Door Card Courtesy Light Lamp Left Right is an original interior lighting component designed for installation in the front doors of Mercedes vehicles. It provides uniform illumination of the entry area, improving visibility when entering and exiting the vehicle and enhancing overall user comfort.

Specifications and technical data

• SKU: A0028201901-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0028201901
• Substitutable numbers: A0028201901, A 002 820 19 01
• Location on the vehicle: Front, Left, Right
• Category: Door Panels

Purpose and function of the door light

The presented light is a component from the Door Trim group, mounted in the front doors on either the left or right side. It is responsible for local illumination of the lower part of the door and the door sill, which facilitates orientation when opening the door in the dark and reduces the risk of accidental contact with obstacles when exiting.

Thanks to its factory design tailored to the W166 series, the component integrates with the existing electrical installation and door finish, maintaining a consistent appearance and functionality in accordance with the manufacturer's specifications.

Construction and fitment for Mercedes W166

The light has been specifically designed for use in the front part of the vehicle, with the possibility of mounting on both sides of the body. The housing construction is adapted to the factory mounting holes in the door trim, which allows for precise seating without the need for modifications or additional adjustments.

The well-thought-out shape of the lens ensures targeted light diffusion onto the area of the sill and the ground by the car, which improves the ergonomics of using the vehicle after dark. The applied design solutions promote stable mounting and reduce the risk of looseness or unwanted vibrations during operation.

Benefits of using an original door light

Using the original door lighting in a Mercedes W166 allows for maintaining the stylistic consistency of the interior and the proper operation of the electrical system. The component works with factory controllers and lighting logic, which translates into predictable switching of the light on and off depending on the door position.

The main advantages of this solution include:

• secure fitment to the door trim without interfering with the panel structure,
• preservation of the original character of the vehicle's interior finish,
• consistent operation with the existing lighting installation,
• functional illumination of the entry area improving daily usage comfort.

Condition of the component and service application

The offered light is a used component, which makes it a practical choice for service repairs, replacing damaged door lighting, or restoring the completeness of interior equipment. This type of component is particularly useful for post-accident repairs, door trim replacement, or reconstruction of the lighting installation in the front door area.

Thanks to the preservation of factory geometry and the intended use for a specific model, the installation proceeds in an orderly manner, and the final effect is close to the original state of the vehicle.

Expanding door area upgrades in Mercedes

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 door cards, decorative inserts, or handle panels, check out the available parts in the Mercedes Door Trim category.

For drivers interested in a broader approach to maintaining the vehicle in good technical condition and comfortable operation, helpful materials may also include guides such as a comprehensive guide to suspension system components, which helps in better planning service work on the car.