Hello together, after a long unsuccessful search with many keywords, I hope on this way for the right tip. Drive a V70 XC year 99 with MANUELLER air conditioning. To the problem: Heating usually stays cold, from all ventilation nozzles comes almost no!! Airflow. Only with fully turned up heating controllers left and right comes then some lukewarm air. If you run this for too long, comes from the dashboard with the lightest twists (e.g. bend drive Krei If it does not happen, then the ventilation channels that have become too hot are probably. If the controller is manually operated on, the disc, head or foot space simply does not change!! Fan runs around correctly, also permanently with proper power, but has the impression that the air flow is simply blocked by the closed flaps. From the flap box it does not go any further….Keyword temperature jam. The heat exchanger is new, pollen fi Of course, I also replaced the only actuator (with a kind of screw wheel) with a used air conditioner. I also paid careful attention to the same installation position. I was already 2x with the dedicated friendly, he meant now it can only hang the flaps but why and why, also did not know at first. The much quoted learning did not work in any case. So now I have (too) written/ described a lot, much You still have an igniting idea. Otherwise I only have the 3rd visit / try at the friendly one. Thank you in advance! Greeting from the district GT