Hello I have a problem again… Although a few weeks ago I made the engine almost new with my Omega (2.5 V6) Now that it’s so cold outside I have the following problem that the heating doesn’t want to be so right anymore…. I thought that I still have so much air inside but that can’t be right now… Have a climate control and if I put it on high and put the ventilation only on “4” then comes out lukewarm air, but as soon as I put it on car mathik is over and everything gets cold again, but the engine is at operating temperature…. When I drive on the highway and drive under full load it almost doesn’t heat anymore or it just comes cold air… Maybe someone can help me. Greeting Mike