A/C Pressure Switch -F129-

WARNING: This page is about a different car, the 2016 Volkswagen Beetle, 2015 Volkswagen Beetle, 2014 Volkswagen Beetle, and 2013 Volkswagen Beetle. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit.

Refer to REFRIGERANT CIRCUIT .

This pressure switch has 3 functions:

Fig 1: Identifying A/C Pressure Switch

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

1. Switches the coolant fan to the next higher level when the pressure in the refrigerant circuit increases (approximately 16 bar).

2. Switches off A/C system if pressure is excessive (approximately 32 bar), e.g. because of insufficient engine cooling.

3. Switches off A/C system if pressure is insufficient (approximately 2 bar), e.g. loss of refrigerant.

NOTE:

A/C Pressure Switch -F129- replaces the A/C Refrigerant High Pressure Switch -F23-, A/C Refrigerant Low Pressure Switch -F73- and the Magnetic Clutch High Pressure Switch -F118-.