Technical Specialist 1.2 TDI
If there's a refrigerant leak, it's most likely that the condenser is faulty as it is the most lightly built component with a large surface area. Your A/C man should have added some dye which shows up green under UV light, as an aid to finding the leak. The condenser is mounted in front of the radiator - you need to remove the bumper to replace it. Also renew the dryer at the same time.