Help your air conditioning system keep track of refrigerant pressure with this Four Seasons switch, part number 20972, a system-mounted HVAC pressure switch / pressure transducer. It is a direct-fit replacement for many Volkswagen, Audi and Porsche models, among them the 1999-2018 Volkswagen Jetta, 2001-2010 Volkswagen Passat and 1999-2007 Volkswagen Golf. See the Buyer's Guide tab for the full list of applications and engine details.
A pressure transducer is mounted in the A/C system. It senses refrigerant pressure and sends that reading to the vehicle's controls, which use it to help manage A/C compressor operation. This part is cataloged as a switch, and Four Seasons describes it as a pressure transducer, so you may find it listed under either name.
- Corrosion protection: Zinc coated to resist corrosion.
- Vehicle-specific: Built for specific vehicle applications.
- Sealing pieces included: Contains the gaskets, O-rings or seals needed to properly replace the product.
- Easy identification: Color coded so it is simple to pick out.
Four Seasons engineers and tests its A/C products and draws on more than 50 years of mobile air conditioning experience. Signs this part may need replacing include an A/C compressor that does not engage, warm air from the vents, or a pressure-sensor fault code. These symptoms can have other causes, so diagnose the system before you replace the part.
