Coolant squirts out form a sensor(?)

[g4gt]

Hi,

I have a big problem with old Audi 80 (91', 2.0 + LPG). I have a big coolant leakage from this place:

it literally squirts out all coolant from this place.

Can any body help me with this problem? I need to change this housing or just a gasket or something else?
Thank you for your help.
 

[James]

You need to take that part out and have a look to see if there is a gasket etc or if it needs replacing.

 

If you're not sure, take the part out and take a couple of photos of it so we can see.