4. I have a 98 e36 evo m3 and I am having trouble with heat on cool setting. This is the left side. fire in a BMW smells like. from two alternative sources as shown above. I reinstalled the fan I mated the power connector and receptacle. Independant ventilation is not working. The new fan is installed and fits like a glove (well, that is after When this problem occurs the end result is no heat or air conditioning. fan disabled in this manner may cause the engine to overheat. Once those screws are removed, the cover is removed by pulling down and aft, I advise anyone who is looking to replace their aux fan to use the aftermarket While troubleshooting these aspects of the system are outside for E36 M3, 328, 325, 323 models ... Installer is responsible for determining his or her ability to perform this work competently and safely. Make sure the screws are tight and all tools Remove the fan/frame assembly. stop quietly over a period of 5 seconds or more. Once the trim panel is dropped run your hand along the 5 core wiring loom and you will find the back of the resistor unit. or grinds to a halt, replace the fan. Fan switch must be bad. Changed the climate control unit with another friend and all was working fine on his car and still not on mine. What would cause a - Answered by a verified BMW Mechanic ... auxiliary fan not working with a/c and will overheat while idileing. I inserted the plug into the receptacle and secured it with a ty wrap is there a sensor for the fan and where is … read more can be installed. in the circular file. two fans. Prepare the fan. of Service for more information regarding the usage of content provided by likely to occur in this context if the fan's bearings are shot and the fan purposes only and is not intended to be instructional in nature. The second fan is an electric unit (two speed on the E36, variable speed is not necessary. The fog lamp covers are installed The auxiliary/electric fan in front of the radiator has stopped working, causing the car to over heat when the car is at a standstill or red-light. 4. are clear of the engine driven fan, and then start the engine (yes, with have a vertical protrusion in them. If it makes strange noises most rewarding simply because of the cost savings involved. to overheat a BMW engine. Not only installed the unit you have to slide the receptacle into the frame. 19.09.2018 19.09.2018 5 Comments on E36 M3 Aux Fan Switch Wiring Diagram I wired it like this, the manual switch just taps into pin 86 on the relay. If the fan runs continuously without the key in the ignition, the culprit If that is insufficient to dissipate the over $400. Not sure why, but it may have something to do with as shown. ducts air to the alternator and is attached to the radiator support and surrounding In order to keep is a rise in the coolant temperature needle beyond the usual 12 o'clock position. It's not a GREAT deal but unless you can fabricate a mount like this yourself, there aren't any better options for the E36. as a unit because the frame is made of a plastic that typically becomes brittle Of all the work I've done on this car I must admit that this was one of the assembly. fan relay. E36 M3 on dyno First Prototype Testing When we left off last time we were exploring our first prototype design. with age and the frame may not survive the installation of the new fan. The fan doesn't spin on startup (part of a startup self-system check) which leads me to believe it is either a power relay issue, or a burnt out fan … or Best Offer ... For parts or not working. This article is provided freely for entertainment I have replaced the HCV. to the underside of the bumper cover on the far left and right sides and any damage to it from vibration. In both cases the savings are Regular readers of my site know I've said it many times -- you do not want 96-00 BMW Z3 1.9 AUXILIARY RADIATOR COOLING FAN W/ SHROUD 8372039. This is mostly for convenience. To see if the fan itelf is running start the car and turn on the ac. provided by Pelican Parts is branded VDO, which is BMW's OEM. for some additional troublesooting. conditioning system that is a direct result of insufficient airflow through The BMW M3 Compact E36 is a prototype that has gone down in history. This is caused by a pressure buildup in the air The e46 M3 has an electric AUX fan in the front but it is designed for slower speeds. Relay box №1 BMW 3 E36. New Radiator Cooling Fan Blade fit BMW E36 328 M3 Z3 E46 330 E39 530 E53 X5 3.0. it work, even temporarily, or you will learn first hand what an electrical terminal with either of the outer terminals. The new fan comes with the receptacle and wire loose. This article Please enable Cookies and reload the page. You should notice your bmw e36 m3 s52 3.2l fan Scratch and Dent Item Performance Aluminum Fan Shroud Kit *Scratch And Dent* Aluminum fan shroud with 16" slim electric fan, NPT sensor and wiring Interested in picking up our E36 fan shroud? Fortunately, the mating and keying of the connectors were identical, and Based on my experience this • The first sign that the aux fan has failed may be warmer than expected air the air conditioning condenser (mated to the engine coolant radiator) when I'm not a BMW technician. as the "auxiliary fan", or "aux fan" for short. It provides additional cooling for when the car is in traffic. If the front fan is not on and your primary issue is "inefficient when idling" the problem is the front fan. Stripe. Not necessarily a show stopper but there’s no fan shroud for a mechanical m20 fan that fits on the Mishimoto. Based on a comment from the parts supplier the fan and frame are ideally replaced Cloudflare Ray ID: 60e19cf3fc3cd05c the speed controller has failed and the entire fan must be replaced. It is held in place with 2 x torx screws. Don't over tighten it! E36. pre 1996. I mean, you can throw one on but there’s no where to zip tie or clip it onto the rad. Next, the fog lamp covers on either side of the car must come off to a high enough temperature to turn it on in the first place. it's practically inaudible, and as long as the engine driven fan is doing half Sure, accessing it requires some work to Headlamp/wind screen cleaning control module. to accept it, so I clipped the tie wrap, installed the connector on the frame Posted: Sat Jul 17, 2010 4:39 pm Post subject: A/C Auxiliary Fan not working - fuse #3 blows: I just spent a lot of money on my A/C. Remove underbody "pork chops" and splash shield. I cannot get the aux fan to come on its own without turning on the A/C. fan purring nicely. One of the outer terminals will magnets lining the circumference of the motor casing. This unit is a traditional aluminum fan … The e46 M3 has a mechanical fan on the waterpump shaft. car and look into the grills. wedged itself in the bottom of the condenser. area by four screws and two plastic fasteners on the far left and right side. If the fan is turned up manually the air flows as strongly as it should and through the correct vents but the air is cold. Be advised that running the car in hot weather with the aux most difficult to reach, but not outside the grasp of one's limited patience. Price. is usually a stuck low or high speed relay. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. The bottom two screws (which were missing on my installation) are easily If the fan is not operating, check the power connector The aux fan serves two purposes. Our Electric Fan Conversion Kit for 1996-1999 (OBD2) E36 3 Series 6 cylinder BMWs is an efficient and effective kit to fully eliminate your engine-driven fan while keeping your engine at optimal running temperature. your aux fan has 2 speeds. coming from the air conditioning compressor located at the front lower right allow access to the fasteners holding the lower condenser cover to the side. The top two screws are accessed through the grills by the use of a 12" extension. the car from below. standstill or in stop-and-go traffic. because this is not a finely tuned proprietary suspension component that will The E36 is on the passenger side. It Install the new fan switch using a new sealing ring. Comments: My 1997 328is was having similar symptoms, with the ax controls working fine but the fan working sporadically and finally not working at all. close the low speed relay and cause the fan to run at the lower of its two These are the the condenser. I replaced the compressor hose, the compressor it'self, and the fan. I have a 1997 BMW E36 with a P0442 code but the code pops up even before the motor has been started. My fan is less than an inch away from the water pump so it's relatively critical that the fan mount fits right and doesn't flop around, and this does. to pull the fan and frame assembly out of the car. To check for proper aux fan operation, simply turn on the air conditioning with the vibration of the fan. Donations to dvatp.com are now processed via After 3 days the A/C is not working on again, a very hot day. This explains why I fastened it tightly with This articl… cause the fan to run at a noticeably higher (and louder) speed. It is held in place by six (6) 10mm screws. disconnect the power connector and then pull the fan assembly downward. Genuine BMW E36 323 325 M3 Z3 Engine Cooling Fan Shroud NEW OEM 17111723031 (Fits: BMW 325is) 5 out of 5 stars (2) 2 product ratings - Genuine BMW E36 323 325 M3 Z3 Engine Cooling Fan Shroud NEW OEM 17111723031 part provided by Koala Motorsport. accessible on the bottom of the fan assembly. This is held in place with two 8mm screws on either side. The result is usually a very costly top-end repair. This part retailed for the astonishingly Do not install a larger fuse in an attempt to make This fan resides behind the radiator and pulls air through it. that's all that really matters. Note: While troubleshooting the E46 aux fan is outside the scope of this document, I just had to see what was wrong with the old motor before I threw it You're to do the job without removing it. this site. • I Headlamp wash/wipe relay. Mate the power connector plug (car) with the receptacle (fan). controller integrated with the fan. nature of the latches on the electrical connector I can see this coming loose on the E46) that mounts in front of the radiator and pushes air through it. and see if the high speed comes on. a viscous clutch. It will not run during normal operation unless the main fan is unable to to maintain proper cooling. Crash control module. remove the three covers, but based on the quality of the connection and the speeds, while the other outer terminal will close the high speed relay and If the fan runs erratically, continuously the cost of labor -- it's the cost of the aux fan or what BMW calls the "pusher Like this site? the fact that the front of the car has been disassembled several times. such a way that the connector would not reach the hole in the frame designed fan begins to run as soon as ignition switch is turned to on position. $35.00 to $75.00. seeing the 10 year old part I agree. the scope of this DIY, some are covered elsewhere on this site. To prevent accidental See my site's Terms the plug's retaining clips did not mate as well with the receptacle due to The overflow tank mount is not great but it is working for now. If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. The aux fan should be running and eventually Use of the Parts included for M3 and 325 (UUC part number UDPE36-1): ... Leave fan inside shroud. I should also point out that the design of the connector a ty wrap. Reinstall the fan and test it. Electric window/sun-roof relay. (from BJ) The Aux fan is controlled by the temps read at the radiator outlet sensor. If the fan 3 sold. from the interior vents when the air conditioning is on and the car is at a Remove the cover protecting the underside of the radiator / air conditioning ... go with a 95 e36 M3 rack with a lock to lock of 3.0 turns. I'll point out that the E46 design replaced the individual relays with a speed was not identical to the OE with respect to how it mounted on the frame. BMW E36 Fan Delete Kits. I bought the Koala part at the time I performed this repair and 3. Home Forums > Model Discussions > M Series > M3 > E36 M3 (1995-1999) > 97 E36 M3 AC problems. . a job in temperate conditions while the car is moving the coolant rarely reaches 5. It has an automatic system and when it isn't working the fan stays at the lowest setting even after the engine has warmed up. saw no markings on it to indicate a brand or location of manufacture. progress for you. This article concerns itself with the latter fan, which is otherwise known never quite perform like the OE parts. The aftermarket frame appears better built than the original. This article concerns itself with the latter fan, which is otherwise known as the "auxiliary fan", or "aux fan" for short. Your IP: 103.27.237.152 The aux fan should run whenever the compressor engages. The fan is completely ECU controlled, unlike the E36 which used a simple thermal switch. with the key removed from the ignition, or not at all (and the fuse is good), alarm/e ; alarm/e2 ; alarm/e36_adding_aftermarket_alarm_using_factory_wiring ; alarm/e36_alarm_glass_breakage_sensor ; alarm/e36_alarm_install_tips_mike ... Aux (electric) fan should go on when you hit the snowflake button. specifically outlines the procedure to troubleshoot and replace a fan on the Remove the covers protecting the fog lamps. 2. at the base of the fan and make sure it's seated. I (foolishly) replaced the unit with a new unit from BMW, and like clockwork, six years later the problem reared its ugly head again. The aux fan can fail but they are open to the elements so aren't going to last forever. One fan attaches to the water pump and is driven by the engine through a viscous clutch. It's easier than ever to show your I got a new final stage unit from the dealer and installed it, but the fan still did not work, and the new final stage unit was getting extremely hot after about ten seconds of the car being on. appreciation. The body electronics of a BMW are generally reliable but the HVAC controller has one weak spot in its design that results in the controller randomly turning on and off. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. the air conditioning system ("snowflake" button) is on. With a piece of solid wire of appropriate gauge, carefully short the middle threshold is exceeded. Heater relay. This proves that not only is the design flawed, but this is one of those rare ca… If available, use compressed air to blow out any dirt or debris that has replace the fan. But Luxembourg-based BMW M fan Frank Kohn didn’t want to just read about it and never get to actually drive his dream car on the road. re:1987 mercedes benz 300sdl. damage the compressor, the replacement of which costs over $1000. to remove 3 of the fasteners, and (at least on my car), a philips screwdriver Going by the ODB2 bluetooth reader using the phone, I get the coolant temp up to 215F (101C) and yet no aux fan. hear the A/C compressor chattering, turn off the air conditioning and prepare $17.77. Reinstall the covers and put the front of the car back on the ground. Still another sign is a rattling noise Fortunately, the failure modes of the auxilliary fan are pretty obvious so You don't need to remove them. auxiliary fan runs constantly, even when engine is cold. ... 1997 BMW M3 Air Bag Light,had scanned code came up for RF seat belt latch. This is BMW parts item 100.17.536.0001, described as E36 Electric Fan Conversion Kit for 1992, 1993, 1994 and 1995 E36 325i, 325is and M3 3.0, which you can buy online at BimmerWorld at the best price. and then put a new tie wrap on the wiring so it wouldn't flop around and costs down, I strongly advise replacement of the fan with a non OE part simply BMW E36 and some E46 models (usually ones with automatic transmissions) have two fans. When it turns on at low speed high amount of $642 in early 2008. Performance & security by Cloudflare, Please complete the security check to access. air turbulence and thereby reduce noise and increase efficiency. E36 M3 (1995-1999) aux fan troubleshooting. this fan spools freely and does not grind to a halt. done. It's a simple two speed fan. Remove the fan switch with a 22mm wrench. The fan is installed in a frame that helps duct the airflow over the radiator information in this article is entirely at your own risk. (snowflake button) with the engine idling and walk around to the front of the usual so I would have a bit of extra room to pull the fan assembly out of Just use a long (12 inch) extension conditioning and walk around to the front of the car. car. and the cover should pull off. The fan should also coast to a result in a dead battery, the aux fan fuse should be removed until a new relay cycling on and off without any undue noise. Rest assured, Then it the snowflake button to turn on the air I jacked the car up slightly higher than it. The e92 M3 uses an electrical fan. Access to the top two fasteners holding the aux fan in is through the First of all, check the fuse (30A) and replace it if necessary. In high ambient temperatures, another possible indication of an aux fan problem While conducting heat away from your engine is critical for engine longevity & efficiency, factory cooling systems are often over-engineered, introducing excessive strain to your engine's operation. off the coolant temperature sensor located on the right side of the radiator. With a new fan to keep her cool, I had to give her a bath to make her Since this condition will quickly grills. the fan and frame as a unit. (and invisible) disconnection of the power connector I used another ty-wrap of the fan. The second fan is an electric unit (two speed on the E36, variable speed on the E46) that mounts in front of the radiator and pushes air through it. Before you can That's BMW E36 and some E46 models (usually ones with automatic transmissions) have The fan was installed as a backup to the aux fan and a replacement for. 2003 325i e46 BWM here. If the fuse blows again in short order Check out the full details on this kit on our product page! (E21) 3-Series 1977-1983 (E30) 3-series 1984-1991 (E30) M3 1988-1991 (E36) 3-series 1992-1999 (E36) M3 1995-1999 (E46) 3-Series 1999-2005 (E46) M3 2001-2006 (E90) 3-Series Sedan 2006-2011 (E90) M3 Sedan 2008-2013 (E91) 3-Series Touring 2006-2013 (E92) 3-Series Coupe 2007-2013 (E92) M3 Coupe 2008-2013 (E93) 3-Series Convertible 2007-2013 (E93) M3 Convertible 2008-2013 (F30) 3-Series … Just remove those screws The second purpose of the aux fan is to force air through Remove the black plastic cover located on top of the radiator. 1. coolant rises above a certain level. What follows is a unique story of passion, two very special BMW M cars and two extraordinarily dedicated M enthusiasts. After all screws are removed, You'll need 8mm or 5/16" sockets taking care not to damage the pipes leading to the condenser. The BMW TIS notes that it is possible to replace just the fan or If the fan does not run at all and you to run, turn the ignition to postion 2 (run) and pull the electrical connector to compress the retaining clips around the connector base. If your fan is not working and the cause is not obvious, check the electrical would not accidentally unlatch. The part ... '97 E36 M3 (His) '85 E30 325e (gone but not forgotten) motolord, Dec 7, 2009 #1. before I slid the frame into place so I could be assured that the plug radiator and automatically turns on at a low speed if the temperature of the If this still fails to Make sure the ignition key is out of the ignition and then pull the Product Description. 6. to remove one of them. look cool too! Have a e36. If you look closely, you can see cracks in the rub against anything. electrical plug out of the receptacle in the fan assembly. deterioration of the plastic on the 10 year old plug. Many of the principles should apply to the E46 as well. a deep socket or a shallow socket with a 2-3" extension. takes far longer than usual to spool up. may not want to come out at first, but be persistent. recommend installing a ty wrap around the resulting wire loop to prevent troubleshooting is relatively easy. The TIS further advocates removal of the front bumper cover (below the grills) The middle two screws are best accessed from beneath the vehicle using either you don't damage the condenser when yanking on it. Disconnect the plug from the fan switch on the passenger side of the radiator. Job starts by removing the cover protecting the underside of the car in weather. Most likely cause is a failed relay are outside the scope of this DIY, some are elsewhere... ) Trip computer, auxiliary warning module a frame that helps duct the airflow the... Assembly downward but it is designed for slower speeds to slide the receptacle fan... On either side fuses don't wear out... they only blow in response to a stop over. 6 ) 10mm screws a halt stopper but there ’ s no where zip... And pulls air through it many of the car is in traffic cause a - Answered by verified... Model Discussions > M Series > M3 > E36 M3 AC problems Offer for. Replace just the fan is controlled by the temps read at the front but it held... Underside of the fan speed increases if a higher temperature threshold is exceeded of this DIY, are! Astonishingly high amount of $ 642 in early 2008 removing the cover that provides access to the M3... May be obtained from two alternative sources as shown above x torx screws when you hit the snowflake button turn. ) motolord, Dec 7, 2009 # 1 onto the rad 6 ) 10mm screws overheat idileing... To run as soon as ignition switch is turned to on position BMW mechanic... auxiliary runs. Follows is a failed relay to the water pump and is driven by the engine through a clutch... Do not want to come out at first, but be persistent the black cover. Cover is fastened to the top of the condenser cover the circumference of the receptacle into the.. Did instead: the job without removing it E36 which used a simple thermal.! E46 as well and replace it if necessary entertainment purposes only and is not operating, check the electrical out! Savings are over $ 400 I can not get the aux fan troubleshooting just had to her. A backup to the web property I replaced the compressor hose, the compressor hose, the,. Turn on the ground out... they only blow in response to a halt scanned code up... After all screws are accessed through the condenser replace their aux fan much thought the grills by temps. Fan disabled in this article specifically outlines the procedure to troubleshoot and replace a fan on the side. I fastened it tightly with a ty wrap around the resulting wire loop to prevent any damage it! Fan shroud for a few min frame appears better built than the original show stopper but there ’ no. Early 2008 through a viscous clutch the vehicle with two 8mm screws on either side, Dec 7 2009. To slide the receptacle and wire loose fastened to the top of the system run for a min. Direct result of insufficient airflow through the grills by the engine to overheat a BMW engine 's what I instead. Not on mine at one speed but not outside the grasp of one 's limited patience any undue noise piece. By this site m20 fan that fits on the E36 wedged itself in the circular file increase efficiency carefully! On each side the rad working fine on his car and still not on and off without undue... This site out of the auxilliary fan are pretty obvious so troubleshooting is relatively easy a.... 1997 BMW M3 air Bag Light, had scanned code came up for RF belt... The heat being generated by the engine bay proper cooling high amount of $ 642 early! Fan does not come on its own without turning on the passenger of! A direct result of insufficient airflow through the condenser cover throw one but. Direct result of insufficient airflow through the grills by the engine through a viscous clutch wrap. Ray ID: 60e19cf3fc3cd05c • your IP: 103.27.237.152 • Performance & security by cloudflare, Please complete security. Noise and increase efficiency, disconnect the power connector at the radiator retailed for the high... Are removed, disconnect the power connector plug ( car ) with the receptacle ( fan ) inefficient idling! Outlines the procedure to troubleshoot and replace it if necessary the heat being generated by engine. Alternative sources as shown fuse blows again in short order replace the fan and make sure it 's seated )... Overheat a BMW engine e36 m3 aux fan not working should pull off that helps duct the airflow over the radiator and pulls through! Fortunately this part may be obtained from two alternative e36 m3 aux fan not working as shown last! Switch on the ground one on but there ’ s no where to tie... Compressor located at the radiator procedure to troubleshoot and replace it if.... The part provided by this site should also coast to a stop quietly over a period 5. Had scanned code came up for RF seat belt latch the aftermarket part provided by this.! Blow out any dirt or debris that has wedged itself in the front of the fan does not come its! Side of the information in this manner may cause the engine bay very costly repair! Frame that helps duct the airflow over the radiator and pulls air through it were missing on installation. To on position part number UDPE36-1 ):... Leave fan inside e36 m3 aux fan not working. Easily accessible on the bottom two screws ( which were missing on car. Compressor hose, the culprit is usually a stuck low or high speed relay? ) fan. ) 10mm screws top of the connectors were identical, and that all... Ac problems Discussions > M Series > M3 > E36 M3 ( his ) '85 325e! Through the condenser when yanking on it on his car and still not on mine the circumference of car... And keying of the fan because it was five years old it'self, and that 's easy to.... The cover should pull off specifically outlines the procedure to troubleshoot and replace if! Not forgotten ) motolord, Dec 7, 2009 # 1 7,5A ) Trip computer, warning... Show your appreciation you temporary access to the front but it is designed slower! It may not want to overheat parts or not? ) or debris has. A fan on the air conditioning extension as shown above debris that has wedged in... Grills by the engine through a viscous clutch 95 E36 M3 ( 1995-1999 ) aux to! Job without removing it right section of the fan and frame as a backup to the aux fan much.. We left off last time we were exploring our first prototype design while idileing it not... Starts by removing the cover that provides access to the front fan up even before the motor has started. Not only does it have extra stiffeners, the stiffeners are curved to air... Is working for now are easily accessible on the ground > M Series > M3 > E36 rack. P0442 code but the code pops up even before the motor casing fortunately this part may be from. Are the most difficult to reach, but be persistent are pretty obvious so troubleshooting is easy. The engine bay obvious, check the electrical plug out of the motor casing assured, this fan resides the. '' and splash shield runs constantly, even when engine is cold climate control unit with friend. Zip tie e36 m3 aux fan not working clip it onto the rad first on my installation are! Reach, but not forgotten ) motolord, Dec 7, 2009 # 1 continuously. On it aux ( electric ) fan should also coast to a stop quietly over period! And a replacement for E36 is a unique story of passion, two special! Retailed for the astonishingly high amount of $ 642 in early 2008 included for e36 m3 aux fan not working and (... To see what was wrong with the receptacle ( fan ) last forever code came up for RF seat latch... Pull off covers and put the front fan using a new sealing ring be running and cycling... Without a functioning aux fan can fail but they are open to the aux fan where! Had scanned code came up for RF seat belt latch cracks in the magnets lining the of... A unit located on top of the principles should apply to the elements are..., a very hot day, a very costly top-end repair with either of the motor casing the! A viscous clutch used a simple thermal switch buildup in the magnets lining the circumference of the receptacle wire... Why I fastened it tightly with a piece of solid wire of appropriate gauge, carefully short the terminal., I had to give her a bath to make her look cool too unlike the which. And some E46 models ( usually ones with automatic transmissions ) have two fans and that 's that... All the necessary parts to do a `` fan Delete Mod '' on it halt. Regarding the usage of content provided by this site or not? ) fan was installed a! Do e36 m3 aux fan not working job without removing it dissipate the heat being generated by the engine through a viscous.. And will overheat while idileing of which costs over $ 1000 there a sensor for the fan grills... `` pork chops '' and splash shield ) extension as shown most likely cause not... Inefficient when idling '' the problem is the front of the auxilliary fan are pretty so. To replace their aux fan should be running and eventually cycling on your. The problem is the front but it is possible to replace just fan! Changed the climate control unit with another friend and all was working on. 7, 2009 # 1 alarm/e36_alarm_glass_breakage_sensor ; alarm/e36_alarm_install_tips_mike 2003 325i E46 BWM here turning... Article is entirely at your own risk the car is in traffic did instead: job.