My daughters car has a slow leak at the line that you can see looking through the passenger wheel well. Leaking on the control arm. Looks like rubber then goes to a metal line and that metal line it rusted pretty bad as in a bad spot for dirt and salt. It's right under the steering boot. Anyone repair this before and know the part # I need?

 

here's the pic

 

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If you are looking in through the passenger side wheel well, my guess is #20 power steering oil cooler below?
In not, point out which one it is.

 

Thanks did not see a line on top or bottom in parallel with it but will look more tomorrow and pull the wheel off. Kinda looks like #16 but will investigate more tomorrow.