water reduction problem

307 1.4 hdi , when I go on a long road, water decreases, no water decreases at short distance, there is no kidnapper.

as if it were a situation related to cooling system, it may be missing from pipes or connection points. or spare water tank cover. You have to check the pipes, as if there are looseness in the crack torn clamps.

I changed the lid of the water tank so I will try bidet on the long way. I hope it is from the cover

I hope my teacher may be confused because he was under constant pressure on the long road. But as I said, check the hoses like that.