1997 Porsche Boxster died while driving.

[xX2pro4uXx20]

Originally Posted by blue62

Sounds like something is going on.
Have you refilled the system lately????
Like drained it or had it very low and refilled it???
Are you sure it's the cap leaking???
Have you tried a new Cap?
They can be problematic.
The rubber seal gets old and cracks.

Yeah I filled it yesterday. Took the full jug to fill it. And honestly, I filled it slightly above the max level but it was even leaking before I filled it. I haven't tried a new cap yet and someone previously said that the cap my car has is a problematic one.

[blue62]

Originally Posted by xX2pro4uXx20

Yeah I filled it yesterday. Took the full jug to fill it. And honestly, I filled it slightly above the max level but it was even leaking before I filled it. I haven't tried a new cap yet and someone previously said that the cap my car has is a problematic one.

Yes sounds like you should replace the cap.
Let us know if that fixes the issue.