Ford Fiesta Mk7 Windscreen Rain Sensor AV1T17D547

Ford Fiesta Mk7 Windscreen Rain Sensor is a component from the Electronic control modules and controllers group, responsible for automatically detecting rain intensity on the windshield. Thanks to precise moisture measurement on the glass, it enables smooth wiper operation, improving comfort and driving safety in changing weather conditions.

Specifications and technical data

• SKU: AV1T-17D547
• Mark: Ford
• Condition: Used
• OEM Part Number: AV1T-17D547
• Substitutable numbers: AV1T-17D547, AV1T17D547, 2500173, LT7T-17D547-AA, LT7T17D547AA
• Category: ECUs & Computer Modules

Function and application of the rain sensor in the Ford Fiesta Mk7

The rain sensor mounted on the windshield works with the wiper system, analyzing the amount of water on the glass surface. Based on the signal from the sensor, the control module selects the wiper operating frequency, allowing the driver to focus on the road without the need for manual gear switching. This solution is particularly useful when driving in the city, on the highway, and in conditions of sudden changes in precipitation intensity.

This component is designed for integration with the factory electrical installation of the Ford Fiesta Mk7, ensuring consistent operation with other vehicle comfort and safety systems.

Benefits of using an original electronic module

As a part from the Electronic control modules and controllers group, the rain sensor is responsible for transmitting precise data to the wiper control system. Using an original solution ensures:

• stable communication with the vehicle's electrical installation,
• proper cooperation with the factory wiper switch,
• appropriate sensitivity to different levels of precipitation,
• preservation of the automatic wiper mode function.

Thanks to this, the driver receives predictable, repeatable system operation without unwanted delays or accidental wiper activations.

Product characteristics and installation

The offered sensor belongs to the Ford brand, which means it is matched to the body structure and electrical harnesses intended for the Fiesta Mk7 generation. The component is prepared for operation in the factory mounting location on the windshield, in the interior mirror zone.

When replacing, it is recommended to:

• check the condition of the glass surface where the sensor adheres,
• use an appropriate mounting element or optical gel, if required by the specific mounting variant,
• check the correctness of the electrical connector connection before finishing the work.

After installation, it is worth verifying the operation in automatic mode by testing the wiper response to different levels of glass wetting.

Condition and origin of the component

The presented rain sensor is offered as a used electronic module, which allows for an economical repair of the automatic wiper system while maintaining the manufacturer's original specifications. This type of solution is often chosen when servicing a few-year-old vehicle, where a reasonable repair cost is important while maintaining compatibility with the factory installation.

If you want to better understand why original electronic components from dismantling are a reasonable choice in terms of safety and durability, it is worth reading the material: why used original OEM parts are a safe and cost-effective solution.

Related Ford electronic modules – expansion and service

If you are planning a comprehensive repair or upgrade of the comfort and driver assistance systems area in your Ford and need other components from the same group, such as light controllers, comfort modules, or other body sensors, check the available parts in the Ford electronic control modules and controllers category.

For a comparison of solutions used in other brands and a broader look at the topic of electronic modules, you can also reach for an article describing the service of iDrive systems and controllers in BMW vehicles: how to take care of electronic modules and multimedia systems using parts from dismantling.