top up engine coolant level error

Good evening, friends, I get the top up engine coolant level error at 307 for a couple of weeks, it doesn't always burn, sometimes it does it when I go 2 km or when I pass through the blah blah blah. Water is not missing even max. above the line. Did anyone have this breakdown? Do I need to replace the sensor or have it oxidized? Can I disassemble the sensor myself? thank you in advance for the answers.

You probably need to replace the coolant cap. Of course, try cleaning the sensor first. You can fix this problem with cheap labor in the industry.

https://www.youtube.com/watch?v=soxjcva15jk

the same mistake had been with me. overheating faulty