Technical Change dualogic oil fluid pumping from the top?

[kompica]

Hello.
I know that its not a right way to change fluid but i am interested in that option od change fluid.
I want to open reservoir cup, pump old fluid out and pump same amount of new fluid in and close the cap.

After i Open the cap i try to push 5mm pipe in but it cant passed down, becouse of some filter?

Is there a way to pass pipe through a filter or where is hole in reservoir where i could push pipe down and how?

Thanks.