Can a garage be fined for leaving refrigerant in an AC system which it knows is leaking?
No. Once a garage has informed the owner of a vehicle that there is a leak in the AC system responsibility is transferred to the owner. Owners can decide to leave the repair shop with the car and any refrigerant that was in the system when it came in. Under the law, the owner is then knowingly venting and will have to have the AC fixed before any more refrigerant can be added. Regardless, a tag must be placed on the car with the results of the test.