E90 / E91 / E92 / E93 2011 BMW 550 heated seat not working. 2011 BMW 550i front driver seat heater and back seat back heater stop working Looked at fuse box and 68. Plug-extra wire to heater wire 69. Plug-heater wire to fuel pump wire 70. Connection for heater 71. Ballast resistor in heater 72. Thermoswitch (parked car heater) 73. Heater motor 74. Overheating switch (parked car heater) 75. Heater plug for parked car heater 76. Heater 77. Fuel pump 78. Plug - on-board computer to remote control 79. Ratings: +0 / 0 / -0. The Rear Window heater/defroster in my 2008 E92 will not work when the battery is low on charge or old. I understand this is a common issue related to the Intelligent battery sensor which ceases to supply certain services when the battery is below a certain level of charge.however I installed a new battery lately but the Hi there,i replaced my water pump,thermostat and radiator last Week bmw e90 323i 2006 msport manual 111000km.The automatic fan was coming on and made a hell of a noise followed by orange temp warning,then red.Been driving fine,no fan noise,no warning heat lights whatsoever for the last week until today on my way home..amber,followed by red The issue is the the cables attaching the fuse box are bad and corrode causing the connection to drop. This causes the complete no power but when you go to the battery all is fine. The way you confirm is next time this happens, open glovebox, remove fuse panel, grab the fuse box and shake it. fu1L. I just replaced my coolant pump and thermostat in my E92 BMW 320 N43 engine.It is a 4 cylinder variant.The procedure is the same as the written guide but most of the work can be done from the engine bay as 4cyl variants engine block is shorter.Only the two E12 bolt of the pump had to be unscrew from the bottom of the car. Staff member. Oct 29, 2018. #2. Yep. common E90 issue. Something must be loose. Open you boot and give the inside of the trunk (the board) a slight knock. See if the light comes on (even just for a short span of time). You may need to solder the connection (if you're not willing to buy a new light). If you have subwoofers in the boot then that Cables would bind and stick, causing all kinds of problems. So manufacturers switched to small electric motors called actuator to vary the blend/air mix door positions. Drivers changed air temperature far more often than they change the mode (defrost, floor heat, dash vents, etc.), so the temperature actuators generally fail first. 1. The passenger side blend door is working, but maybe not reaching full stroke. I am skeptical this is the case since both actuators are actuating for the same times and there is heat. 2. The heater core is clogged and is somehow bias to one side. Judging by F30 heater core pictures, it looks pretty simple. ***8220;If your car***8217;s [insert option name here] does not work, check your VIN on the BMW decoder to see if [option code] is actually included in the build.***8221; Alignment here: The Definitive Alignment Thread

bmw e91 heater not working