SEAT Workshop Service and Repair Manuals > Leon Mk2 > Heating, ventilation, air conditioning system | Heating, air conditioning | Air conditioner | Repair work on refrigerant circuit which may only be carried out in suitable workshops by specially trained mechanics, vehicles | Overview - components in the refrigerant circuits for front and rear seats | Checking air conditioning system pressure switch F129

Checking switch unit > < Repairing refrigerant circuit for front seats

Checking air conditioning system pressure switchF129

Checking air conditioning system pressure switch -F129-

t	The pressure switch can be removed without extracting the refrigerant from the refrigerant circuit.

t	Visual check: ensure that O-ring 10.8 mm x 1.8 mm is seated in groove.

Switch unit between contact -T4d/1- and contact -T4d/2- of the connector housing switches off air conditioning system magnetic clutch -N25- when refrigerant circuit is insufficiently filled or pressure is too high:

Opens below 1.2 bar and closes again above 2.4 bar (switching threshold).

Opens above 32 bar and closes again below 24 bar (switching threshold).

Heating, ventilation, air conditioning system
Heating, air conditioning
Air conditioner
Repair work on refrigerant circuit which may only be carried out in suitable workshops by specially trained mechanics, vehicles / erview_components_in_the_refrigerant_circuits_for_front_and_rear_seats/">Overview - components in the refrigerant circuits for front and rear seats
Checking air conditioning system pressure switch F129

Checking switch unit > < Repairing refrigerant circuit for front seats