......had to join in on this one,have been reading posts for some time .The dreded climate control ....yes mine failed as well (reported May)could not turn off the heat on drivers side and its been a bit hot of late with cabin temp of +40c the car has been undrivable.Four visits a total of 12 days and the heater now can be turned off, cool!well no because the air con does not blow cold now mmmmmm regass degass regass nope the whole lot has to come back out,this as well as a 4 day recall to fix rear brake pipes 1 day for air bag reprogram 1 day abs recall .So if you have this done check that the air con can blow ice cold .Am I still pleased with the C4 well this is now in the balance.........C4 VTR+(5 Door Artic Silver)05 17.000 miles.