I think my A/C evaporator is leaking?

Check static charge pressures - have they changed? Is a/c system still cooling as it should? UV sensitive dye can be added to system then an ultraviolet light can be used for leak detection.

Hello, an odor alone is not a good way to determine leakage or not. Recovering the refrigerant and vacuum testing the system for leaks would be the best initial effort. Adding oil to the system is typically done when compressor replacement is performed.