How to fix the cool air blowing from the Audi A7's vents?

My Audi A7 is blowing cool air from the vents instead of warm air. How do I fix this problem?

First, check your coolant levels to ensure they are at the recommended level. Low coolant levels can cause the air in your vents to blow cool. If your levels are low, top up your coolant and see if that resolves the issue.

If your coolant levels are fine, then the issue could be with your thermostat. A faulty thermostat can cause the air in your vents to blow cold. Have a mechanic inspect and potentially replace your thermostat.

Another possible cause could be a problem with your heating system's blend door. This door controls the mix of hot and cold air that comes through the vents. If it's stuck or malfunctioning, it could be the reason for cool air blowing. Have it checked and repaired if necessary.