Look at this tube. Urgent help._vehicles, vehicles

Look at this tube. Urgent help.

September 5, 2024

Yan version, He version, a thermostat was replaced in front. After driving for a few days, the fault light came on. I asked the mechanic to check it. It was a problem with this pipe. It broke off with a gentle break. I asked and said that they were out of stock. The master said that there was no problem opening it for the time being, so pay attention to the water temperature. Is this really the case? If you want to buy car dismantling parts, you should buy the joint connected by the two pipes together, right? I would like to hear the suggestions of the two moderators. Thank you!