Windscreen Rain Sensor BMW F20 F21 F30 HUD 9270588

BMW F20 F21 F30 Rain Sensor is a precise comfort system component responsible for automatic wiper operation and improved visibility in varying weather conditions. This sensor, from the BMW group, is a solution designed for users expecting factory fitment and stable integration with the vehicle's electronics. A used part from the Other category allows for an economical yet technically sound repair of the rain detection system.

Specifications and technical data

• SKU: 9270588
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6814596
• Substitutable numbers: 61356814596, 6814596, 61359332179, 9332179, 61359293279, 9293279, 61359387621, 9387621, 61359354225, 9354225, 61359339241, 9339241, 61359249520, 9249520, 61359243568, 243568, 61359270588, 9270588, 61359266413, 9266413, 61359347395, 9347395, 61359311711, 9311711, 61359354843
• Category: Other Exterior Parts & Accessories

Application and Function of the BMW Rain Sensor

The rain sensor in BMW F20, F21, and F30 models is responsible for automatically controlling wiper operation based on the amount of water on the windshield. A properly functioning sensor:

• analyzes the intensity of precipitation on the windshield surface,
• sends a signal to the wiper control module,
• enables smooth adjustment of wiper speed,
• enhances driving comfort in rain and drizzle without the need for manual wiper speed selection.

This allows the driver to focus on driving, while the wiper system reacts to changing weather conditions in a predictable manner consistent with BMW's factory logic.

Compatibility and Integration with BMW Electronics

The offered BMW Rain Sensor is designed to work with the electrical system and communication bus used in the F20, F21, and F30 platforms. As an OEM part, it ensures:

• correct identification by body control modules,
• compatibility with comfort module software,
• stable operation in automatic wiper mode.

The sensor has an assigned part number and associated interchangeable numbers, which facilitates selecting the correct part based on service documentation or BMW catalogs. This allows for precise verification of compatibility with a specific vehicle configuration.

Product Characteristics and Condition

The presented BMW F20 F21 F30 Rain Sensor is an original component used in BMW vehicles from the factory. A used part allows for consistency with the factory rain detection system without the need for replacements with uncertain characteristics. This solution is particularly beneficial for:

• repairs after windshield replacement,
• resolving errors related to malfunctioning automatic wipers,
• restoring full comfort system functionality after mechanical or moisture damage.

The used condition indicates that the part has been previously operated but is suitable for further use after proper installation and configuration in the vehicle.

Benefits of Using an Original Rain Sensor

Using an original BMW rain sensor in F20, F21, and F30 models offers several practical benefits:

• Factory Operating Logic – maintaining original wiper system settings and responses.
• High Electrical Compatibility – no need for wiring modifications or adaptations not intended by the manufacturer.
• Consistency with Comfort Systems – proper cooperation with body modules and other functions related to the rain sensor.
• Economical Repair – a used part helps reduce service costs while maintaining proper operating parameters.

Selection, Installation, and Additional Materials

Before purchasing, it is advisable to verify the sensor's compatibility with your specific vehicle equipment version, using the OEM part number and available reference numbers in BMW catalogs or service documentation. Correct selection facilitates subsequent vehicle configuration and minimizes the risk of communication errors with control modules.

If you are looking for other parts from the Other category dedicated to this brand, check out our offer for BMW Other, where you will find a wide selection of body and comfort electronics components.

For those interested in comparing technical solutions used in different brands, including sports versions of models, we recommend the blog article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses differences in engine, braking system, and chassis construction in the context of selecting replacement parts.

Summary

The BMW F20 F21 F30 Rain Sensor is a functional comfort system component that restores automatic wiper operation and improves driving safety in the rain. Its original BMW origin, compatibility with vehicle electronics, and the possibility of an economical repair make it a sensible choice for users who value technically sound solutions for their car.