Mercedes W221 Interior Rear View Mirror Rain Sensor Trim Panel Cover A2218110007

The rearview mirror cover with rain sensor for the Mercedes W221 is an original interior trim element designed for installation in the rear of the cabin, near the interior mirror. This part ensures a factory fit, aesthetically conceals the sensor installation, and provides a consistent appearance between the windshield pane and the upper windshield area.

Specifications and technical data

• SKU: A2218110007
• Mark: Mercedes
• Condition: Used
• OEM Part Number: A2218110007
• Substitutable numbers: A2218110007, A 221 811 00 07
• Location on the vehicle: Rear
• Category: Rear View Mirrors

Purpose and function of the element

This rearview mirror cover with rain sensor panel for the Mercedes S-Class W221 is a rearview mirror cover and is an integral part of the interior trim around the rearview mirror. Its purpose is to:

• covering the wiring harnesses and the mirror body from the cabin side,
• organizing the space around the rain sensor and any accompanying sensors,
• maintaining a consistent stylistic line of the dashboard, headliner and windshield,
• protection of delicate electronic components against accidental mechanical damage.

Thanks to its factory design, the cover works with the standard interior mirror and rain sensor system without the need for modifications or forced adjustments.

Construction and fit for Mercedes W221

The cover was designed specifically for the interior of the W221 generation Mercedes S-Class, taking into account the distinctive window profile and mirror shape. This means:

• precise fit with the headliner and mirror base,
• dedicated routing for rain sensor cables and connectors,
• stable mounting, reducing vibrations and unwanted noises while driving,
• maintaining the original geometry, which facilitates assembly and disassembly for service.

The element is part of the rearview mirror installation system, so after installation it creates a uniform, tidy surface at the top of the windshield, consistent with the Mercedes factory finish standard.

Condition, use and benefits of installation

The cover is in used condition, ensuring a good price-to-quality ratio while maintaining the original character of the interior. This is a practical solution in situations where:

• the original cover is cracked, deformed or worn,
• after repairing the glass or mirror, the complete cover panel is missing,
• it is necessary to restore the factory appearance of the cabin after interfering with the rain sensor installation.

Replacing the cover with the original avoids problems typical of aftermarket parts, such as poor fit, color variations, and poorer mounting stability. This ensures the interior of the W221 S-Class maintains a consistent, representative character, consistent with the manufacturer's design intent.

Why choose this rearview mirror cover

Choosing the right mirror trim is not only aesthetically pleasing, but also functional. A properly selected rearview mirror cover with rain sensor for a Mercedes W221 :

• facilitates service and diagnostics of the sensor, providing convenient access after disassembly,
• reduces the risk of accidental damage to cables and connectors,
• improves the visual perception of the interior by eliminating visible installation elements,
• helps maintain the vehicle's value by preserving the original appearance of the cabin.

This is particularly important in the case of S-Class models, where attention to interior detail is one of the car's key distinguishing features.

If you are looking for other rear view mirrors for Mercedes, check out our dedicated category: rear view mirrors for Mercedes .

For those interested in the broader technical context and the development of solutions used in the S-Class, we recommend the article: Evolution of the Mercedes S-Class from W140 to W222 – innovations and Mercedes parts in subsequent generations .