Cabin interior air filter. Porsche 991 2012-19 / 981 Boxster and Cayman / 718 Boxster and Cayman  ❭  99157237100

Diagram ref no 14

The cabin air filter cleans the air entering the passenger compartment, improving interior air quality and comfort for occupants. It also helps protect the HVAC system from contamination, supporting consistent airflow and efficient heating and cooling operation.

Function: Positioned in the HVAC intake path, the filter traps fine particles while allowing unrestricted airflow into the cabin. Genuine Porsche filtration media and sealing design ensure that unfiltered air cannot bypass the filter, maintaining optimal system efficiency and interior air cleanliness.

Over time, cabin air filters become saturated with dust, pollen, and pollutants, which can reduce airflow, degrade air quality, and place additional strain on the HVAC system. Replacing the filter with a Genuine Porsche OE component restores factory airflow levels, improves cabin comfort, and helps maintain long-term HVAC performance and reliability.

When to replace:
•  At recommended Porsche service intervals
•  Reduced airflow from vents
•  Persistent odours or poor cabin air quality
•  After extended driving in dusty or urban environments
•  During routine HVAC servicing