Mercedes-Benz C-Class W203 Light Rain Sensor Cover Trim Black A2038220135

The Mercedes C W203 Black Rain Sensor Cover is a precisely fitted component mounted within the rearview mirror, providing aesthetic and safe coverage for the rain sensor on the windshield. Maintaining the correct position and cover of the sensor is crucial for the proper operation of the automatic wipers and for a consistent interior appearance.

Specifications and technical data

• SKU: A2038220135
• Mark: Mercedes
• Condition: Used
• OEM Part Number: A2038220135
• Substitutable numbers: A2038220135, A 203 822 01 35, EM
• Color: Black
• Category: Rear View Mirrors

Purpose and function of the rain sensor cover

The rain sensor cover in the Mercedes C W203 is a component connected to the rearview mirror that stabilizes and protects the sensor module from accidental mechanical damage and excessive sunlight. A properly installed cover helps maintain proper sensor operating conditions, which translates into efficient automatic wiper operation and driving comfort in the rain.

This element also serves an aesthetic purpose – it conceals the wiring and electronic components around the mirror, so that the area around the top of the glass remains tidy and consistent with the rest of the cabin finish.

Construction, color and interior fit

This cover is finished in black, allowing it to blend seamlessly with most interior configurations found in the Mercedes-Benz C W203. The dark color reduces light reflections around the mirror, improving the driver's field of vision and maintaining the subdued, factory-style character of the cockpit.

The element's geometry has been designed specifically for the rearview mirror and rain sensor in this model, making installation easier and ensuring a stable fit to the windshield and mirror housing. Properly profiled edges facilitate precise fit with the remaining elements of the windshield and headliner.

Used condition - practical benefits

The cover is offered in used condition, which is a good solution for users looking for original components at a reasonable price. The used part retains the factory fit and construction while reducing the cost of repairing or replacing a missing cover after disassembly or damage.

Choosing a used rain sensor cover is also a way to maintain visual consistency with other interior elements – the natural wear of the material is usually similar to that of other components, which limits differences in shade or texture of the material.

Assembly and technical aspects

The rain sensor cover in the Mercedes-Benz C W203 is designed for factory installation, directly adjacent to the rearview mirror. The design allows for proper wiring and proper sensor positioning relative to the windshield, which is crucial for stable readings and wiper system response.

• Sensor stabilization – maintaining a constant position relative to the glass surface.
• Mechanical protection – reducing the risk of accidental impact on the sensor module when adjusting the mirror.
• Reducing the impact of stray light – helping to maintain repeatable sensor operating conditions.

When replacing the cover, it is worth paying attention to the correct engagement of all the catches and the correct arrangement of the cables to avoid tension and subsequent looseness in the mirror area.

Application in the rearview mirror system

As part of the Rearview Mirrors category, the black rain sensor cover is an integral part of the windshield-mounted assembly. It affects:

• ergonomic operation – no protruding cables or exposed components in the driver's field of view,
• interior aesthetics – consistent, factory-like appearance of the upper part of the glass,
• functionality of comfort systems – stable operating conditions of the rain sensor.

For Mercedes C W203 owners who are upgrading or restoring their rain-sensing rear-view mirror system, replacing or adding a cover is a simple step that improves both the function and appearance of this area.

If you're looking for other Mercedes rearview mirrors or related window-mounted components, check out our dedicated category: Mercedes rearview mirrors . Additionally, if you're planning a comprehensive car preparation for harsher weather and inspecting used components, it's worth checking out our guide: Winter Essentials – Which Used Car Parts Should Be Checked and Replaced Before Freezing Weather ?