Looks like it's probably the EGR cooler. You have the ALH 1.9 and there are two coolant hoses that connect to this exhaust cooler.
It could be just the hoses that are leaking. That would be the easiest and less costly fix.
If the cooler itself is cracked and leaking then your looking at replacing it.
The part number is 038131513 and will be around $500.00 to replace
Check the hoses first and then trouble shoot the cooler itself.
Here's a diagram of the part.
Good Luck

 

thanks for the info, but i saw water coming from some apparatus behind these pipes. see the photo again. that object with rhe gree screw coming out of it

 

Locating a coolant leak



The aluminum thingy is the Intake Manifold which does not have any coolant circulating thru it. The little black thingy being held onto the Intake Manifold by the little green bolt is the electrical/vacuum control unit (N18 I think)for the ASV (Anti-Shudder Valve). Coolant does not circulate thru any of those items!

I believe the poster with the photos of the EGR cooler has answered your question. Likely, there is a very small hole that sprays a very small amount of coolant up in the area your are describing which then drips off!

 

Heater core? Where does the coolant go through the firewall to the heater core?