BMW F20 F21 F30 F31 Sensor Rain Light Solar Condensation 9861558

BMW F20 F21 F30 F31 Sensor Rain Light Solar Condensation is an original BMW component designed to work with factory-installed automatic lighting and wiper control systems. As a part of the interior equipment and windshield trim group, it ensures the precise operation of comfort functions, improving driving convenience and safety in changing weather conditions. Using this OEM component allows for maintaining the consistency of the vehicle's electronics without the need for unreliable aftermarket replacements.

Specifications and technical data

• SKU: 9861558
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9861558
• Substitutable numbers: 61359332180, 9332180, 61359387624, 9387624, 61359347396, 9347396, 61359321007, 9321007, 61356806745, 6806745, 61356823541, 6823541, 61357939173, 7939173, 61359475147, 9475147, 61359861558, 9861558
• Category: Trim

Purpose and function in the vehicle

The presented sensor is a component of the system responsible for automatically switching on lights and activating wipers depending on light intensity and precipitation. In a typical configuration, it is mounted on the windshield, working in conjunction with the body control module and the vehicle's electrical installation.

Thanks to the use of an original BMW solution, the system:

• reacts precisely to changes in lighting conditions,
• automatically adjusts wiper operation to the intensity of the rain,
• maintains full compatibility with factory comfort and safety settings.

Advantages of using an original BMW sensor

Choosing an original BMW rain and light sensor primarily ensures reliable cooperation with the vehicle's electronics. A component designed by the vehicle manufacturer is matched to the electrical architecture and software, which minimizes the risk of errors, fault messages, or improper operation of assistance systems.

Key benefits include:

• Stable operation of automatic lights – no delays or accidental activations.
• Consistency with factory comfort functions – maintaining the original system logic.
• The ability to use existing mounting points and wiring harnesses without modifying the installation.

Installation and operational characteristics

The sensor is intended for installation in place of the factory component, which facilitates service and reduces the time required for replacement. The OEM design allows for the use of original brackets, connectors, and covers, without the need for adaptation or the use of additional adapters.

As a part from the Trims, decorative strips, and decorations category, this element works with the windshield trim and the area around the interior mirror, maintaining interior aesthetics and proper adhesion to the glass. Proper seating of the sensor is important for the accuracy of light measurement and precipitation detection, which is why using an original component helps maintain stable operating parameters.

Product condition and practical application

The offered sensor is a used component, which allows for economical repair or restoration of the automatic light and wiper system while maintaining original BMW quality. This solution is particularly beneficial when servicing vehicles where compliance with factory specifications is a priority without incurring the costs of new subassemblies.

It works well both for typical replacement of a damaged sensor and for restoring full functionality after accident repairs or windshield replacement, where re-equipping with original control elements is required.

Expanding equipment within the same group

If you are planning a comprehensive repair or modernization of the windshield area and the surroundings of the interior mirror in your BMW and need other elements from the same group, such as covers, grilles, or additional finishing elements, check the available parts in the BMW Trims, decorative strips, and decorations category.

Knowledge and service regarding used parts

When planning service using components from disassembly, it is worth knowing the best practices for selecting and installing original elements. You can find more about the safe use of used parts in premium cars in the article Luxury within reach – how to service a Porsche legend using proven used parts, which discusses the approach to quality, verification of origin, and optimization of operating costs.