Windshield washer reservoir not filled completely

[Charlot]

Hello,

On my Mirage ES year 2019, when I fill the windshield washer reservoir, the tank will not be filled as the fluid builds up to the neck's opening rim. See on my photo.
The fluid will go down in the tank only after a few hours.
Why is it like this ? Is it because I reach the maximum capacity of the reservoir ?

Thank you.

[Mitz]

...
Why is it like this ? Is it because I reach the maximum capacity of the reservoir ?

best answered on this thread

windshield washer tank fix (won't fill completely)

[Fummins]

What Mitz said. They're all like that. I just bent a metal coat hanger, heated up the end with a torch and poked a hole just below the top of the jug from inside the filler neck. It's probably explained in the linked post above.

[Eggman]

On my Mirage ES year 2019, when I fill the windshield washer reservoir, the tank will not be filled as the fluid builds up to the neck's opening rim. See on my photo.
The fluid will go down in the tank only after a few hours.
Why is it like this ? Is it because I reach the maximum capacity of the reservoir ?

Sure hope your washer fluid tank isn't cracked. Have you noticed any unexplained puddles under your car?