YES . I've asked the dealer to drain all the old freon , clean the system by flushing the condenser coil and regas with new freon. The car is now nice and cool , my advise is to try something simple like this rather than going to the expensive solutions like water valves etc . The freon tends to lose 20% of its capability due to moisture contamination each year

 

The same was recently done but did not help.

 

There is separate fuse for the side dash air vents. If it's blown, everything works except the side and middle vents. They will blow warm air.Check your owners manual and examine the fuse situation.

 

If the fuse is OK:

Just a shot in the dark (haven't experienced the problem myself), but all sealed refrigerant systems are basically the same and easy to rule out when that portion of the climate control system is "sound".

Even without a DTC code, I'd be searching for an electronic, electrical or mechanical "control" problem...starting with mechanical: the temperature control flap motor and flap behind the dash/console...not too hard to access, if you want to eliminate it as a problem. A visual inspection might be worth a try...even with a perfectly functioning "sealed circuit", the cold could be prevented from getting routed to the right place due to a flap motor or flap malfunction.

Granted, this (and other controls)should throw a code, but not impossible...sensor circuits can fail...and if your system is NOT working, with no codes, something failed.

Plus if you didn't personally run the diagnostic, there's always a possibility that an idiot DID