BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper 6904012

BMW 3 5 7 X5 Series E38 E39 E46 E53 Rain Light Sensor Windscreen Wiper is an original component designed to work with factory comfort and safety systems in selected BMW models. The module is responsible for the automatic control of wipers and lighting, ensuring convenient, predictable vehicle response to changing weather and lighting conditions. By using an OEM part, full compatibility with the vehicle's electrical installation and control logic is maintained, which translates into stable operation and consistency with other onboard systems.

Specifications and technical data

• SKU: 6904012
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6904012
• Substitutable numbers: 61356904012, 6904012, 61350141224, 61358379374, 61358363430, 61358382468, 0141224, 8379374, 8363430, 8382468
• Category: Other Starters, Alternators, ECUs & Wiring

Module purpose and function

The presented rain and light sensor module has been designed to work with electronic systems in BMW X5 series models and selected generations of the 3 and 5 series. Its task is to analyze signals from the sensor located at the windshield and transmit them to the controllers responsible for the operation of the wipers and exterior lights.

In practice, this means that the vehicle can automatically:

• adjust the wiper frequency to the intensity of precipitation,
• switch on exterior lighting upon detecting deteriorating visibility conditions,
• maintain consistent operation of automatic functions in accordance with the factory BMW configuration.

Compatibility and integration with BMW electronics

The module is intended for use in BMW vehicles that were factory-equipped with automatic wiper and light control functions. As an OEM component, it ensures proper communication with the vehicle's bus and correct cooperation with existing body control modules.

Thanks to this:

• compliance with the original vehicle software is maintained,
• there is no need for additional adapters or wiring modifications,
• the module can be coded or matched to a specific equipment configuration in accordance with BMW service procedures.

Performance characteristics and advantages

Using an original rain and light sensor module in a BMW translates into predictable, repeatable operation of automatic functions. The system reacts to changes in weather and lighting conditions in accordance with the manufacturer's specifications, which improves driving comfort, especially in urban traffic and when driving at night or in the rain.

Key benefits include:

• consistent operation with factory comfort systems,
• no conflicts with other body control modules,
• maintaining the original vehicle functionality after replacing a damaged module.

Product condition and installation aspects

The offered module is a used BMW part, which allows for an economical repair of the system without compromising the original specifications. Before installation, it is recommended to perform a standard verification of the vehicle's electrical system and, if necessary, carry out adaptation or coding procedures in accordance with service documentation.

When working on vehicle electronics, it is advisable to use the services of a specialized workshop that has the appropriate diagnostic software and experience in handling BMW systems. This helps to reduce the risk of installation errors and ensures the proper operation of automatic functions after replacing the module.

Expanding knowledge and part selection

If you are planning a comprehensive repair or upgrade of the body electronics area in your BMW and need other components from the same group, such as control modules, comfort sensors, or lighting controllers, check out the available parts in the Other BMW category.

For a better understanding of the differences in the design and characteristics of advanced sports model versions and their drivetrain and braking systems, you can read the article on our blog: Audi RS vs other models – what is hidden under the hood and chassis?. This will allow you to better assess how manufacturers design modern systems, including the electronics responsible for safety and driving comfort.