The air conditioning was set to level 4, but there was still barely any cold air and the airflow was very weak. What's going on? After a day, it went back to normal. It's really frustrating.

When you don't feel cold, open the hood and check if the air conditioning pipes are frosted. That was the case for me. Later, I went to the 4S shop and adjusted some data, and it was resolved.

Try changing the air conditioning filter.

Battery cooling