HELP please have a leak.

Hi my son has a 2007 a3 sline 2.0 tdi 170bhp he has been getting alot of water in the driver's side footwell when we have rain, been out to his car and i saw this, what is in pics does anybody have a clue where the bar that has rust on it goes to as i think that is where the water is getting in because of the rust.
The question is where does this bar go to or how the water maybe traveling down then getting in and soaking the driver's floor any help would be grateful thanks sorry forgot to ask where are the water drain holes/bungs


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That's the steering rack column bar, ideally needs stripping in that area to trace leak with a hosepipe.

It must be traveling from the top as usually the rack seal is solid.

Whereabouts are you based?