A/C amount of 134A

[Canadian Expy]

Dose anyone know how much 134A a 2002 EB with rear A/C would take to fill?

Also is there common spot where they leak or is it a crap shot?
I'm heading down to PA this weekend and I want to pick up some 134A to get the A/c working again. I'll fix the problem then recharge.
I check last night and the system is empty

 

[stamp11127]

Link didn't work. I'll post the correct one soon.

This works:
http://techchoiceparts.com/refrigerant-and-oil-capacities

 

[Canadian Expy]

Link didn't work. I'll post the correct one soon.

This works:
Find your vehicle's refrigerant or oil capacity || TechChoice Parts

Thanks