E36 aux fan test When I checked the fan, it had seized. Personally, my ideal setup is a 80/88 degree Celsius fan temp switch from a M42 (for M/S50) or M44 (For M/S52) and a 88 degree thermostat. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm The BMW electric fan conversion is a common modification on these cars that will eliminate the OEM clutch fan that is driven by the water pump pulley, as well as the auxiliary fan that is in front Apr 11, 2013 · You can test the aux fan by jumping either of these 2 sets of pins, and 2 are smaller than the other, to avoid confusion Tom has a good potential solution for you, if you want to either have it run all the time (really not advised ) or with a switch that you can control from inside the cabin. When I start the car the fan attached to the water pump is running. Cooling Fan Relay Testing: • How to Test Cooling Fan Relays - Low and H Ending Music: Cielo by Huma-Huma Carsntoys / carsntoys …more. May 29, 2012 · The a/c system has absolutely nothing to do with whether or not the aux fan turns on when the engine is overheating. Oct 10, 2008 · The aux fan is suppose to turn on low with the ac button is pressed. May 22, 2011 · I recently found that my Aux fan had frozen up. The Aux. Feb 13, 2019 · On the E36 the easiest way to test the fan (other than INPA, which didn’t turn it on) is to jump the connector for the temp sensor on the driver’s side of the radiator. There are 2 different Aux fans and speed control circuits. My fan doesn't work and want to see if the test will make it spin. Relays and resistors are used for the different speeds. See full list on dvatp. You can test the aux fan by doing 2 things. There are several options for the complete aux fan assembly, but it's also possible to replace just the motor for around $100 if the fan's plastic frame and blade are in good shape. This scanner should work on any BMW BMW E38 E39 AUX Electric Fan Not Working Diagnostics, / nathansdiygarage / nathansdiygarage / nathandiygarage To see my other Channel "Nathan's MRE Click Below / @nathansmre2025 To see my other Jul 7, 2011 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. That is the second part of this. Check to see you have intact fuses 3 (15A low speed relay fuse), 18 (30A high speed relay fuse), 19 (auxiliary fan 7. The snowflake button light does light up green but I get no cold air (I do get air, but not cold air). If the fan is on because of the ac, it will only go to high if the temp gets to 99. A simple job that needs just a Philips screwdriver. If you have the drive by wire throttle May 10, 2022 · Rad fan is not coming on. HOW TO TEST RADIATOR FAN ON BMW MaxiCom Scanner: https://amzn. When I pulled the relays and closed (jumped with a fused jumper wire) the appropriate pin sockets, again, it worked at both speeds. I've read that you can test the auxiliary fan relay by jumping 2 of the terminals on the plug for the coolant temperature sensor. 5A), and fuse 20 (30A for the AC and aux fan). I also ordered a new dual temp switch to put in while I was at it. Any idea what may be causing this? It's scorching Replacing the fan resistor on my early RHD E36 Alpina to solve the issue of the fan only working on speed 4. May 13, 2011 · - How to test the cooling system auxiliary electrical fan (1) (2) & a DIY for replacing the auxilliary fan (1) & the infamous fuse 75 (1) & the aux fan relay (1) Mar 8, 2018 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. When the fan is conected there is no errors at Oct 3, 2011 · Yes that is the power connector for the fan. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm Aug 22, 2007 · For e38s made from 9/95 to 9/98, I put together a simple checklist for the auxiliary cooling fan circuits. The weird thing is that the auxiliary fan does work whenever the the temp gets hot. Pull the female terminal connector from the dual-temp Here is a short how to on wiring your aux fan in your e36 to your fog light switch for free. Feel free to comment and ask quest Jan 1, 2013 · To test the aux fan without having to create 100+ degree heat, turn on the A/C. Jul 5, 2018 · E36 318i Aux fan not coming on automatically Hi there, my aux fan is not working. But it is also supposed to turn on if the radiator temp switch hits 91 degrees celsius in low speed or if it hits 99 degrees celsius in high speed. First things first is you need to test your aux fan to see if it works. Aux Cooling Fan Component Checklist There are 3 individual circuits that control the cooling fan speed (low/mid/high), referred to as Stage 1, Stage 2 and Stage 3. Jul 17, 2016 · Before I go and by a new auxiliary fan I want to test some things. The radiator temp switch is activated if the engine overheats and turns on the aux fan. BMW E36 overheating issues Testing Aux Fan Function Digging Deeper BMW E36 Overheat: Radiator Fan and Temperature Sensor (Part 2 : UPGRADE) E36 DIY Coolant Flush + Change (Every Owner Needs to Do Sep 7, 2018 · I have a 1992 325ic. Mar 21, 2010 · well i did cooling system overhaul and replaced lot of parts but some how electric cooling fan dont come on when engine is normal or high temp? how can i tell its not burned up or how can i test this problem? i reall dont want to spend over 300 bucks for new fan. The BMW electric fan conversion is a common modification on these cars that will eliminate the OEM clutch fan that is driven by the water pump pulley, as well as the auxiliary fan that is in front Apr 11, 2013 · You can test the aux fan by jumping either of these 2 sets of pins, and 2 are smaller than the other, to avoid confusion Tom has a good potential solution for you, if you want to either have it run all the time (really not advised ) or with a switch that you can control from inside the cabin. The car (1998 318i) kept overheating, and stupidly I never realised that the aux fan wasn't working. Mine broke which caused overheating of the car. More than 40,000 top quality items immediately available from stock. Additional troubleshooting n We would like to show you a description here but the site won’t allow us. Can this be done on the E39? I've gone thru the E39 test Mar 8, 2018 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. The older cars that use a throttle cable have a temp switch on the side of the radiator that controls power to a 3 speed fan. Disconnect it from the sensor, turn the ignition to ON, and using something metal, bridge two of the terminals. to/2DOTdpf In this video we will be using MaxiSys MS908P to test the radiator fan on this BMW e90. I loosened it up, and connected it directly to battery, but it wouldn't work. The air conditioning works fine but when I turn it on, the aux cooling fan, which should come on at low speed, does not operate. Your online shop for industrial automation with items from the world's leading manufacturers. Our professionals are here to help make sure you find the answers you need to your questions and our community is here to help other brainstorm Jul 1, 2013 · These fans do commonly go bad at high mileage or age, especially the low-speed side, low speed being on far more often than high speed. Learn more. May 13, 2011 · - How to test the cooling system auxiliary electrical fan (1) (2) & a DIY for replacing the auxilliary fan (1) & the infamous fuse 75 (1) & the aux fan relay (1) Mar 5, 2018 · I've watched videos using INPA to test the aux fan function on an E46. Jun 25, 2016 · 1 reading Jump to Latest 32K views 19 replies 6 participants last post by diptenkrom Jul 13, 2016 diptenkrom Discussion starter 266 posts · Joined 2008 #1 ·Jun 25, 2016 so i was on my way home from work today and my car was hotter than usual and i stopped on side of the road and the bleeder screw was puking coolant, it popped the top off. Dec 22, 2022 · My aux fan simply doesn't work Things I already know: The fan have 3 Wires and one of these receive a PWM signal The DME sends the PWM signal The aux fan kicks in when I activate the AC or at certain temperature There are 12~14v in the wires. Feb 11, 2017 · Originally Posted by rph74 Is there a quick and easy test to see if the Auxiliary fan itself has gone bad? I checked and the fuse is fine. 1. You could remove the a/c system completely and the aux fan would still come on if the engine is overheating. Jan 1, 2013 · To test the aux fan without having to create 100+ degree heat, turn on the A/C. After 10-1998 no resistors and Quick guide on wiring a relay for fan delete on E36 BMW In this video I will show you, how to test BMW PWM controlled AUX fan Oct 23, 2016 · My auxiliary fan is not working when I turn on my AC. At Bimmerforums, you will find technical how-to information maintenance specifics audio advice wheel and tire combinations and model specific details not found anywhere else. I wasn't having any problems with overheating but just happened to notice that the fan blades wouldn't turn. It also uses the AC pressure switch and HVAC panel to turn the fan on. :cry: Mar 12, 2014 · A E36 with a slightly lower thermostat, a lower fan temp switch, and the OEM Aux fan with the entire cooling system working correctly will have no issues. Audio tracks for some languages were automatically generated. Does anyone know how to test the fan on the bench? or offer any other solutions. I would like to remove the remove and rad fan and bench test it to rule it out as problem. BMW E46 E39 E53 AUX Cooling Fan Problem Not Working correctly Relay and Thermostat Nathans BMW Workshop 205K subscribers Subscribed You can also delete your aux fan and delete your clutch fan and use the AUX wiring to run to a new aftermarket electric fan with this 82 degree fan switch to free up some horsepower. On the later e39s (M52 TU, M54, M62 TU) it's easy How to diagnose your fan if it's in working order for 10-1998 and up, BMW E38 and E39 before this date have a resistor pack that can be changed to fix this issue. I already suspect the fan since the signal on the connector does change when HVAC is turned on. Thx all I believe that the Brush-Less DC fan is checked by the ECU on every start up; commanded 100% speed then listens to the spin down. i had the wife bring me a gallon of water and topped May 30, 2018 · BMW E38 E39 Electric AUX Fan Not Working? Diagnosis And How To Fix Nathans BMW Workshop 210K subscribers Subscribe In this video I show you how to test to see if your fan switch is working. The fan should run. Apr 20, 2009 · Pin 2 -- black wire Pin 3 -- brown/black wire The test procedure (steps 0-6 for the aux fan, step 7 for the AC switch): 0. So I replaced it. com Mar 22, 2012 · Problem/diagnosis: My fan doesn't work automatically, but when I close the fan plug terminals, it works at both high and low speed. Sep 21, 2010 · I ordered a new thermostat but am now thinking it could be the fan clutch or the auxiliary fan. b2xcw zwiw l4sp4o uzvnv zxnuaje nymty vjqnz ruce xfls ffshws