Leaking purple fluid indicates that you should check your:

Coolant is checked when leaking purple fluid . Generally coolant is green and orange and in some cases it is in purple color. You can smell the coolant leaking. There are three common causes for coolant leaking. Those are Leaky Radiator Cap or Internal Leak or External Leak.Coolant leaking Sweet Smelling (toxic). If your car is leaking coolant, it will run normally until the coolant level gets too low.