pjblade1

Hi Trevor. Thank you for the welcome. There is something defiantly wrong with demist operation. I have always had temperature display set at 16 degs, both on my old 3 series & this x3. Even though this temp is set low. The moment you push the demist button, it fires hot air toward the windscreen. But recently, the only way to get hot air to the screen is to higher the heat setting on the display. It never used to require any adjustment with regards the heat setting. I am thinking it has to be the secondary water pump/valve unit, or the thermostat. The temp gauge always used to sit vertical, & now doesn't quite get to vertical. I don't want to spend out on the wrong part, as bmw parts are pricey

Hi Guys. I have an E83 X3 3.0 sd. Since i have had the car (& also on my old E46) when you press the windscreen de-mist button on the heater console, (engine temp at normal running) it throws hot air to the windscreen regardless of temp setting on heater console. But recently, it will only push cold air to the windscreen. I can get hot air by increasing the temp on the heater console. But shouldn't have to do this. Anyone have the same issue & diagnosis please ?. winter is coming, so want to get fixed asap. Coolant level ok temp gauge sits at normal most of the time, but has on a few occasions not got to where it normally sits. (normally vertical 12 o clock) sometimes 10 o clock