Hi people. Since it’s cold again early I ask myself the question why the ventilation is only so lukewarm. Outside temperature -3 degrees , inside vlt. 10 degrees , motor to 90 degrees . The air conditioning automatic stands at 24 degrees , the blower on automatic . The ventilation should now really bring power , but it püstst so lukewarm that you don’t notice much . What is this?The interior filter is new . When I set to manually the blower puffs plentifully .