I've noticed some hot air coming from the vents and some cooling air as well. But today it just blows hot air... I'm desperate... I live in So. Florida...
AC BLOWING HOT AIR on 2006 Mercedes-Benz C230
you need a good local MB specialty shop to check this out.
You have to close the vent, there open, turn on the ac and then turn it off again that will do it.