Porsche Cayman 987C A/C Air Condition Sun Light Solar Sensor 99765325100

Porsche Cayman 987C A/C Air Condition Sun Light Solar Sensor is a precision component of the air conditioning system, responsible for measuring the intensity of solar radiation and transmitting data to the comfort control unit. This allows the automatic air conditioning system to dynamically adjust temperature and airflow, ensuring stable conditions inside the vehicle. This solution is particularly important in Porsche cars, where high system performance and predictable reactions to environmental changes are expected.

Specifications and technical data

• SKU: 99765325100
• Mark: Porsche
• Condition: Used
• OEM Part Number: 99765325100
• Substitutable numbers: 99765325100, 997 653 251 00
• Part type: Sensor
• Category: HVAC Temperature Sensors

Function and role of the solar sensor

The solar sensor in the Cayman 987C model works with the air conditioning system by analyzing the level of sunlight hitting the dashboard. Based on this data, the control unit can:

• adjust the airflow temperature on the driver and passenger sides,
• change the airflow intensity depending on cabin heating,
• maintain a more stable microclimate during sudden weather changes.

A functional solar sensor translates into more predictable air conditioning operation, reduces temperature fluctuations, and improves comfort when driving in sunny conditions.

Benefits of using an original Porsche sensor

The component intended for the Porsche Cayman 987C is designed for the specific electrical and logical architecture of the vehicle. Using the correct sensor ensures:

• proper cooperation with the factory air conditioning controller without the need for installation modifications,
• appropriate measurement characteristics matched to the interior of the given model,
• stable readings within typical solar radiation ranges encountered in daily operation.

As a result, the air conditioning system reacts in a manner consistent with the manufacturer's specifications, and the driver retains the original functional properties of the vehicle.

Practical application of a used sensor

In the case of electronic elements such as solar sensors, choosing a used part is often an economical and technically sound solution. An original component from dismantling retains its factory design while allowing for reduced repair costs compared to purchasing a new unit. This is especially important when restoring full functionality to the air conditioning system in older Porsche Cayman 987C models.

If you want to better understand when choosing used modules and sensors makes sense, how to select them by OEM numbers, and what to pay attention to during installation, it is worth checking out our guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.

Integration with the air conditioning system and driving comfort

A properly functioning solar sensor affects:

• more even temperature distribution in the cabin during one-sided sun exposure,
• reducing the need for manual air conditioning adjustments,
• better utilization of the automatic mode, which increases overall user comfort.

For drivers who value consistent operation of comfort systems in a Porsche, a functional solar sensor is an essential element of the entire system, despite its small size and discreet placement.

Expansion of the temperature measurement system in Porsche

If you are planning a comprehensive repair or upgrade of the air conditioning and comfort zone in your Porsche and need other elements from the same group, such as additional sensors, control elements, or components working with the temperature regulation system, check the available parts in the Porsche temperature sensors category.