temp control

Hi All, Im new to this so please bear with me. Mercedes W203 2001 C180 Classic Recently the cooling fan came on when the car was started and comes on every time the car is started and doesn't stop till its switched off. I have had the car checked by a garage and they changed the fan & the...

To be brief, the door-side vents blow HOT air; the two center vents blow COLD air and the under-the-seat vents blow HOT air. This is pretty much regardless of which buttons are pressed. After a couple of minutes, the two center vents get a little flakier: they blow HOT air towards the front...