At the speed of 60km/37 mph temp = 54C/129.2F. At the speed of 120kmh/75 mph temp = 58C/136.4F. In this case temp didn't matter much. If I was stopped for a minute and coolant temp stated 54C, the heat was better than steadily moving at 60 km/h. 2009 328i Heater Blows Cold. Hello all, new to BMW, and the forum. I searched for this issue first, but didn't really find much. My heater worked fine last winter, but this year I'm getting warm air (Not warm enough) from the passenger side vents and cold air from the driver side vents. Heat turned up all the way, all knobs set to the red zone Passenger side heat is turned on by a junction box via a relay under the pass seat. You may need to run 2 new wires. Check the yellow pass side connector under the seat. Pin 1 and 5 are needed to turn on the heat. Also check that all the thick wires line up between your car harness and the new seats. BMW E90 blowing low or no heat. First off, DO NOT replace the heater core due to low or no heat unless you are sure it’s leaking. It’s a huge waist of money and only do so if flushing fails remove the blockage which is unlikely. My 2009 328i sedan with just under 65,000 miles experienced this issue and seems to be more common with the e90 A short example of our working day. On this video we replace the broken aux heater from BMW 330e into a new one. Disclaimer:Bemu Expert Oy does not take any Do not open the coolant expansion tank cap during the venting procedure. 1. Connect battery charger. 2. Switch on ignition. 3. Set heater to maximum temperature and turn fan down to lowest speed. 4. Press accelerator pedal for 10 seconds to floor. Engine must not be started. 5. The venting procedure is started when the accelerator pedal is My 2007 328i has been recalled for the "blow by heater" recall, aka PCV heater. I am hoping that this involves the removal of the valve cover, because my valve cover gasket is currently leaking and therefore I am hoping the recall will solve this problem as well. My Bentley is a bit confusing on this. My car has the plastic cylinder head cover If the O 2 sensor heater circuit’s negative wire goes directly to ground, look for a short-to-power problem. Usually the heater circuit in this case is controlled by a relay. Remove the relay and retest the circuit. If the light comes on again, locate the short-to-voltage in the wiring harness with the relay removed. Vgp9t.

bmw e90 heater not working