Dorman 904-613 HVAC Pressure Switch

Dorman 904-613 HVAC Pressure Switch

Restore A/C operation with this Dorman HVAC pressure switch, a direct replacement for the original transducer switch on select Audi and Volkswagen models. It addresses common failures caused by corroded terminals or a broken connector, helping bring the air conditioning system back online.

• Direct replacement A/C pressure switch for select vehicles
• 12-volt electrical design with 3 blade terminals
• Specific fit for the original application
• Black oval connector with female terminal interface
• Metal housing with bolt-on mount type
• Designed for R134A refrigerant systems
• Pressure limits: closes at 29 and opens at 20
• Maximum pressure reading: 551 PSI

Detailed Product Overview

Dorman 904-613 is an HVAC pressure switch built for vehicles using R134A refrigerant and a 12-volt electrical system. It features a black oval connector, 3 terminals, and a metal housing for a direct-fit replacement on the original A/C transducer switch location. This part number 904-613 is intended to restore proper pressure signal function when the factory switch has failed due to connector damage or terminal corrosion. It cross-references Four Seasons 20972 for the same application.

Compatible With select Audi Q3, Audi Q3 Quattro, Audi Q7, Audi TT, Audi TT Quattro, Audi TTS Quattro, Audi TT RS Quattro, Audi A3, Audi A3 Quattro, Volkswagen Beetle, Volkswagen CC, Volkswagen Jetta, Volkswagen Passat, Volkswagen Tiguan, Volkswagen Eos, Volkswagen Golf, Volkswagen GTI, Volkswagen Golf R, Volkswagen Golf SportWagen, and Volkswagen Passat CC applications. If you are replacing a failed A/C pressure switch on a 2012-2018 Audi or Volkswagen platform, Dorman 904-613 is a direct replacement option to match the original connector style and mounting layout.

Common Problems It Can Address

• A/C compressor not engaging because the pressure switch signal is lost
• Intermittent air conditioning operation from a damaged connector
• Corroded terminals at the original transducer switch
• Faulty pressure readings that prevent normal HVAC operation
• Loss of cooling performance after switch electrical failure

Installation Notes

Verify the connector shape, terminal count, and refrigerant system type before installation. This part uses a bolt-on mount and a female oval connector with blade terminals, so it should be matched to the original switch configuration on the vehicle. Confirm system pressure and inspect the connector and wiring for damage before installing the replacement.

Quality Assurance

Dorman manufactures this HVAC pressure switch as a specific-fit replacement for the original part, with application details matched to the listed Audi and Volkswagen vehicles. Part number 904-613 is built to restore the factory-style pressure switch function in the A/C system.