Just thought I would ask the following as I cannot remember coming across this before:- I have a 2015 640d - Mileage at 24k. This week I have experienced that when I adjust the Climate control between 16-27.5C, the air being blown out is the same throughout (A/C is OFF, Centre Hot/Cold wheel between front vents set in the middle). As soon as it sets to 28C then hot air blasts out. Anyone else come across this? Also - not sure of this affects the above, but 2 months earlier the Dealer had taken out the dash completely to fix a previous issue. I have extended warranty on the car with the same dealer, and booked it in for a check on the above issue- any advice would be welcome.