My id4 with heat pump has stopped blowing cold (air conditioned chilled air). Instead it is just standard temp regardless of whether air con is on/off in any any driving mode. Been 2 VW dealerships. 1 didn't have the right machine wo cope with the high pressure co2 system and the 2nd has re-gassed which has done absolutely nothing. Has anyone come across this and also had it fixed? Can't believe VW sell a car that they can't or don't know how to fix. Any help appreciated.