Thermostat Replacement 

In this video I show how to change the thermostat in a VW Polo.
In my case I had a leak of antifreeze liquid in the area where the thermostat is mounted.
I bought a kit that came with the thermostat, its cover and an oringe.
I think my problem was oringe because the old one was in very bad shape.
It's been more than a month since I made this change and I do not have the leakage of antifreeze liquid that I used to have.