Audi a4 radiator fan running all the time. Heat delivery temperature in cooling system: -273. ) The right side radiator fan however does run. AC on or off makes no difference. 43. The A/C system can over-ride and force low or high speed at any time, but the fan is not disabled without the A/C system. Feb 16, 2018 · A4 (B6 Platform) Discussion - Audi a5 cooling fan running all the time and using fuel - 2010 A5 sportback 2. Posted on Feb 18, 2009. Probably this sensor, rigth? The firewall one 4 pin signals the ECU and the temp gauge. Apr 4, 2017 · B7 - Radiator and condenser fans intermittent operation. It could be a faulty fan switch, or faulty engine coolant temp sensor or a faulty fan relay. The slightly longer one is: Yes it doesSO, if it's always running when the AC is switched on and sounds like an air-raid siren, yes, it's probably the fan control module. If your radiator fans aren't spinning at all then it can be the fans or the fan control module (FCM), or both. audi A3 1. i know it sometimes stays after dpf regeneration, but this is not becouse i check with vcds last reg. Expert. Part is $299 (8E0-959-501-AB)for my 02 A4 Jun 16, 2020 · Radiator fan running all the time. sirmarky. Jun 30, 2022 · The most common reasons an Audi A4 is overheating are a coolant leak (water pump, radiator, hose etc. May 8, 2016 · 3) Since your car has a DPF do you regularly do M'way runs to cause a regen. 0 Post (s) cooling fans running all the time – 23-09-2010, 10:19 PM. Air Condition Pressure Sensor faulty. I ran vag-com on the car and got the below code. My 03 Audi A4 has the same problem. May 5, 2012 · SOURCE: Audi A3 2001 radiator fan ruuning all of the time yeah try to change the sensor. If you park the car during regen, it will shut off but your exhaust temps are 1472 F, so the cooling fan remains on. Something to consider - check and make sure the fans are still actually connected to the motor driveshaft. its good that your radiator fan has a feature like that. Also, it usually takes about 20+ sec before car warms up at start-up and I drive off Jun 5, 2003 · Re: Cooling Fan won't stop running. May 31, 2015 · There only a couple of things that will energize the cooling fan. Any ideas what it could be? The fan seem to be running at full speed as well. 0 T has a fan issue. The fan is commanded by the engine ECU on the red/white wire from the ECU to the fan unit and this passes through a black four terminal plug at position 2 in the plenum chamber box and it knows the ignition is on as it receives a line 15 signal from fuse 9 also in the plenum chamber . Feb 28, 2002 · Audi 90 / 80 / Coupe quattro / Cabriolet - Radiator fan runs constantly with cold engine - I have found a lot of threads regarding what to do if the radiator fan won't turn on, but none telling how to approach my problem I have a 1988 Audi 90 with a radiator fan stuck in the on position even with the engine cold Aug 25, 2011 · 03 Audi A4- Coolant fan runs until the battery dies. if you use VCDS you can test the electric fan. Your radiator fan assembly helps direct cool air through your radiator to cool your radiator, which in turn cools your coolant and engine. You'd need at least 30-40mins @ 70mph in 4th gear if you're doing 100% short journeys as the soot and carbon build up will increase rapidly. Yeah try to change the sensor. Stays on high the entire cranked time. And then check the coolant temp value. electric fan is a turn though the engine is cold of it. Feb 6, 2011. For the 4. I looked at it and found the relay and un plugged it to save my battery. Most likely water in the ECU box. its good that your radiator fan has a feature Dec 16, 2010 · My Photo Gallery: 0. the temp gauge is spot on normal Jan 8, 2013 · hi my 2006 audi a4 2. Shortly thereafter, they came on for 5 to 10 seconds and Aug 30, 2011 · That's the short answer. Lost my mind and bought a 2002 A4 3. '03 A4 5-MT Motoza tuned Frankenturbo F21L With full supporting mods. I replace the temperature sensor located by the drivers side and still hasn't fixed the problem. 0tdi 272hp, allmost every time i turn car off cooling fan stays on for about 3-5 minutes. My fan comes on way to early. I noticed today on my 2015 Corsa E that the radiator fan starts immediately, and at full speed as soon as I start the engine (even from completely cold) and runs continuously. DPF regeneration is a critical process for diesel engines to reduce harmful emissions. If it stays more than 10-15 min. On some models, like mine, there is a metal clip which bridges across the ECU itself. The thermostat keeps the coolant from going to the radiator. A pessimist will tell you the glass is half-empty. Aug 23, 2018 · Received 54 Likes on 33 Posts. But those wires look fine. As pointed out, this is definitely normal. If it's broke and reporting high, and the car thinks the engine is hot, it'll run the fans. C is off. Oct 27, 2008 · If it is running after the car is turned off something is keeping the fan relay closed. Oct 17, 2020 · Jtatt3822 Discussion starter. If you have your heating on and press the econ button does the fan stop. Some cars are designed to have the fan run for a few minutes after you turn the car off. 64 Answers. Those two painted wrong picture. I usually let my car cool down for about 90+ sec before shutting it off (especially after a long drive and/or aggressive), and when I do so, my fan does not turn on. This is normal for all TDI models. Apr 26, 2022 · B6 A4; Radiator fan only runs when temp sensor unplugged; 2005 Audi A4 1. 5. I would suspect a sensor sending the wrong signal. Jul 11, 2015 · Replace the ECU cover if it is compromised in any way. 2 posts · Joined 2020. The radiator fan should not run all the time as it can indicate a problem with the cooling system. They sound like a jet, so need to find out why they are running at full speed. Free Same Day Store Pickup. the only exception is when the snow flake shows on the instrument cluster (below 40F May 13, 2019 · WHY RADIATOR FAN STAYS ON ALL THE TIMEIf your radiator fan stays on all the time when the car is started or with the ignition being on we will explain what i Mar 30, 2014 · Mar 30, 2014. Ten seconds after cranking, cooling fan runs on high. Jan 22, 2014. You can then lift the ECU out of the way which will reveal the 219 fan control relay. My suggestion is replace the fans and module together and be done with it. #10. Yesterday I drove 50 miles to work and when I arrived, the hood was colder than the pavement!!!! Oct 5, 2023 · Trying to understand the sensors jobs totally 2001 A4 B6, 2. Aug 2, 2013 · Yesterday I had the cam belt replaced, and the garage also replaced the other tensioners and the water pump and replaced all the coolant. No Jan 21, 2007 · Normally the fans are controlled by the fan control module based on a signal from the CTS in the lower radiator hose. I have read elsewhere that is a normal "cooling" mechanism to extract heat to protect engine components, but this conflicts with what others are saying it might be a faulty temp sensor somewhere. Feb 6, 2017 · A4 (B7 Platform) Discussion - Radiator Fans Keep Running! - So I’m having the same issues that I’ve read all over the Audi blogs – my fans won’t turn off, even after the key is removed, thus draining my battery. ) I have noticed that the left side radiator fan doesn't run at all (even with the AC on. Cooling Temp Sensor. The radiator fan runs at high speed all the time. Jan 2, 2010 · I have a 2000 artic cat 400 4x4 manual trans red color. Was 355km ago. 8T B6 M5 Sedan. 46 Post (s) Re: Fan activating after short journey – 23-01-2016, 09:03 PM. Otherwise, you will need to perform additional tests as described earlier. this helps to cool down first the engine to reach its desirable temperature before it is totally shut down. But if doesn't stop until the battery drains, then it might be a faulty switch or temperature sensor. 0 FSI, 2004. If you've noticed your 2017 Audi A4 running hotter than usual, a malfunctioning radiator fan could be the cause. Feb 22, 2017 · We have a 1998 Audi A4 Quattro 2. If the vehicle detects a fault in the fans or certain temperature sensors it attempts to run them at 100% so your P048100 fault would be why they are running full blast. I've been trying the narrow down the sources of the problem and I suspect it might be the fan switch causing the problem. So I'm guessing my Radiator fan control module is toast. This can happen if the switch gets damaged or worn out over time. 0T but all Audi logic would be the same between different motors. Another possibility is that there is a problem with the wiring to the fan. I recently bought a 2002 TT Quattro that overheats when run at load for any extended time (ie. My car does not overheat. 8E0959501AA which is a 400 w unit. Radiator Fan runs continously on high speed. Diesels warm slowly. If your Audi has a diesel engine, the most probable cause for its cooling fan staying on is that the car is performing an active diesel particulate filter (DPF) regeneration cycle. blogspot. 1 is for the air con the other for the engine. Oct 14, 2001 · summersr. I asked the dealer for the cost of the part and labor. #1. When I switch the heating off again the fan stops. Any suggestions ? Mar 21, 2013 · I think this is normal. Jan 12, 2022 · Re: Cooling Fan running all the time – 19-01-2022, 03:52 PM. Hi, wonder if anyone can help me narrow down an issue. You an hear the car a half block away!!!. I’ve asked about it when I’m getting the oil changed and regular maintenance, but no one seems to think it’s a Feb 6, 2011 · wheelsnwires. I have a 13 model. The fans are not increasing your time to warm the engine. Feb 14, 2011 · Replies. fan runs all the time even short journeys and with air con switched off. 6 sport 2001 this fault is intermitant, the cooling fans run even with the engine off and the keys out of the ignition till the battery runs flat, when the engine is running the traction control light is lite. Nov 17, 2011 · I've had my A5 for 1. It would merely run off just the temp switch at that point. If I turn the AC off, the fans also turn off. 10586 - Door Control Module - Rear Left. #1 · Oct 17, 2020. Jan 24, 2014 · It will run when the car is on and can last 5-15 minutes. An engineer will tell you the glass is twice the size it needs to be. 2. Note the evidence of water in the ECU box from the settled orange Feb 19, 2024 · Fan keeps running on a diesel Audi. 8 - 30V The coolant fan (passenger side) is running all the time, not shutting off. this atv does not have any type of sensor or switch in the radiator. The front one 2 pin controls the cooling fan. Normally, they fail because the main electric fan jams and the control module blows to "protect" the fan. Apr 7, 2010 · TT (Mk1) Discussion - Radiator Fan doesn't run - I am a new TT owner. Still running. In 25 degree weather it would take 12 miles to open the thermostat on mine, on a stop and go country drive of 55 mph or less. I've connected an OBD reader I have and while I see no codes (the tool isn't the Nov 8, 2023 · By Eric November 8, 2023. I have had this Rubicon for several years never had any major problems. Most likely cause would be the fan control module failing. It doesn't matter whether the trip was a 60 mile trip, or a 20 mile trip. It will not be to hard for you to get on a top of that one. ! - Ok, so my radiator fan is acting up. Mine does the same thing and I am in the same city as you (even bought it from the same dealer). The cooling fan turning on is dependent on the coolant temp when the car is shut down, if above a certain temp in the radiator, it will run until it comes down and then shut off. Mar 21, 2013 · I have this issue as well, with the fan running, sometimes, for about 1 minute after the engine is shut off. Let our staff of expert techs trace the problem to help you find the best solution. 0 1 0. Mar 24, 2013 · ANYTIME the AC is on, both fans should be on. Coolant fan 1: activation: 10. 5 years and all of a sudden the radiator fan starts running 10 seconds after I start my car and continues to run until about 4 minutes AFTER my engine is shut off. Fairly common fault. Outside temperature: 10. Even after the car and ignition was shut off it was still running at full speed until I pulled the Aug 3, 2021 · The first pic, as already noted, is your G395 refrigerant pressure sensor. Q7 MKII Discussion - Q7 2017 cooling fan stay on, please help - Q7 2017 3. The other 5 wires there, in pics 2 and 3 and which are all cut, go across above the condenser and radiator to the middle and then forward to the mount behind the rings on the front grill. here are some temperarures while Nov 2, 2012 · 30v V6 Discussion - Cooling fan running all the time - 1999 Audi A6 Avant 2. It happens roughly every 700 miles, but it really depends on driving style and city/highway use. The car is so Feb 27, 2008 · Be specific. when the fault clears the light goes out. ), the radiator fan, or a failed thermostat. The radiator fan does not seem to tur read more Feb 20, 2012 · 1 / 1. However, if the fan operates continuously, it could be a sign of a malfunctioning thermostat, electrical issue mohammed rahman. Nov 17, 2015 · Marty, Don't know if it's different elsewhere, but on USA models (both my Audis and all modern VWs I've owned) The electric fan runs 100% of the time when the HVAC is set to "Auto", with the engine running cold engine, hot engine, start to stop, always on. 8 Avant that has recently had problems with overheating. Fault Priority: 0. If the smaller fan still doesnt move and the large radiator speeds up and sounds like an aeroplane taking off. Check out free battery charging and engine diagnostic testing while you are in store. If the fan does not run, that may set a specific DT. Reply Like. Feb 23, 2013 · The fan runs nearly every time the engine is shut off. Only the large radiator fan on the right should be moving. Search turned up that the coolant fan switch (passenger side lower corner of radiator) gets 'stuck' often. Engine temp guage is reading normal, coolant level is normal and no codes in VCDS. P275300 = Transmission Fluid Cooler Control Circuit/Open. Push down on either end of it to release the clip. Engineers have designed radiator fans to run, after the car has been shutdown, for over 20 years. Re: Fan activating after short journey. Audi A3 / S3 / RS 3 - Radiator fans running constantly - The fans are running constantly on my 2006 A3 2. 0T Order Audi A4 Radiator Cooling Fan Motor Relay online today. Radiator fans running at high speed. 0 %. The cooling fan comes on as soon as the ignition is turned on. 4) Have you had the car scanned with VCDS*. Nov 6, 2016 · Completely normal. 0 °C. I found part numbers: 8E0959501Q which is a 300w unit. P0480 - 002 - Electrical Malfunction - Intermittent. This is normal for all diesel Audis. All times are GMT -7. Doesn't matter if I drive 1 mile or 50. After engine switched off fan runs then goes low peed then finally turns off all after 5-6 mins. Faults can make starting cold difficult. 7 °C. Jun 20, 2013 · Cooling fans running when car is off. Open the bonnet with the engine running an AC off and watch the fans. Jan 22, 2014 · #1. Jan 2, 2021 · P048100 = Cooling Fan 2 Control Circuit. The dealer replaced an electrical relay and the problem has disappeared. It hasn't done this since owning it (three weeks now) and wondering if this is a fault (no engine mgt lights on though), or is it doing it because the weather has warmed up a bit so it's just serving its Oct 27, 2014 · Originally Posted by dvs_dave. It's 50F (10C) outside. My 2007 Q7's fan would sometimes run for a bit after being shut off. The time now is 12:26 PM. aftermarket perfomance fans do come with that Dec 7, 2019 · 2017 Q7 Plus Help. There is nothing to worry about. The car does fine while driving, but begins to overheat when in traffic. Dec 11, 2006 · My Photo Gallery: 1. Jun 15, 2019 · Radiator Fan Relay. Now turn on the AC, wait a few minutes and keep watching the fans. normally, most of the late-model cars comes with a fan feature that turns of after 5 or 10 mins even after switching off the engine. you can test the fans by applying 12v direct to them, it if the fan spins then it's the FCM Sep 25, 2022 · There are a few reasons why your radiator fan might keep running even when the engine is turned off. Nov 18, 2015 · Title says it alL. #7. The temperature sensors or thermostat will not cause this since they are not powered up after the car is turned off. 2: The fan is operated by the temp switch, 2 cooling fan relays, and a resistor on the driver side frame rail. Hi, I have an Audi A4 2002 and it has recently developed an issue with the radiator fan coming on as soon as I switch the heating on. I took it to my local shop and they replaced the battery and here’s what they deduced: They scanned for Jul 10, 2019 · Coolant temperature at radiator outlet: actual value: 9. When she came home and turned the car off, the fans came on a moderate speed about 15 minutes later, stayed on for a few minutes and then shut off. The fan assures air flow over the condenser coil located in front of the radiator. 00 %. 2 FSI. over 2 minutes. . Both are listed for the RS4. Quoted. #3. About a year ago I started hearing the radiator fan running on high at low speeds. It is normal (and means that the system is working) when engine gets hot for the low speed fan to continue running for a while. May 31, 2020 · You don't say any specifics about your A4, but it's likely the 400W+600W fan pair. This happens even when just starting the car and turning the heating on from cold. 0tfsi. Oct 27, 2014 · Received 220 Likes on 200 Posts. My thermometer starts out reading 90 C, then goes up to 110 and sets the Jan 11, 2013 · While installing the brakes yesterday, I serviced the AC and my fans were acting weird. kite said: You have 2 fans. You can activate the rad fan using the "Output Test" in VCDS, 01 Engine ECU, the rad fan should run when the command to run is sent to the fan controller. maybe it is busted. Or, if the fan stays running when the engine and radiator are cool you have a very cheap problem: The fan thermostat is stuck closed. Audi A3 / S3 / RS 3 - radiator fan just keeps on running - The gods are against me with my Audi A3 2. I May 19, 2013 · Audi A3 2006 Houston TX. The radiator fan (large one on the right when facing the front of the car) keeps on going, had to disconnect the battery after 3hours. *You can check if anyone near you has it here: VCDS - Help Requests. Jan 22, 2014 · Points. An optimist will tell you the glass is half-full. After about 15 minutes and a bit of panic-induced googling, I disconnected the battery. Ordered new switch and installed. We had some pretty heavy rain the other day in MA and my wife drove through a knee deep pool of water. you have a problem, and I had that seen happen few times over the years. May 19, 2007 · A4 (B6 Platform) Discussion - How to change the fan control module - DIY - I noticed that my front radiator fans were not running at all, or were running wide open speed. Oct 24, 2012 · Oct 25, 2012. Jan 18, 2009 · AC/Electrical Fan Relay #53 (Part# 141-951-253 B) that its staying open once the car is off. Feb 14, 2017 · Engine temp is normal, and the thermostat reads normal as well. Last night, I did a 20 mile journey and when I switched off the engine, the radiator fans kept going. Only 55,000 miles. One is a high engine temperature and the other is the A/C compressor running. Audi 90 / 80 / Coupe quattro / Cabriolet - radiator fan running constantly in cold weather. Thermal Fan Switch. Will call the service department tomorrow but thought I would ask if this is normal for the 3. 0T. Fuel temperature: 9. It stays running until the ignition is turned off. So past couple of days I've noticed my radiator fans are running at high speed seemingly all the time (60-70 deg ambient). Cooling fan motors that are failing can damage the module. 3. One reason could be that the fan switch is stuck in the “on” position. 0 Quattro Saturday. Turn the car off and the fan runs on low for the next five or so minutes. Coolant fan 2: activation: 0. As i start the car also a few seconds it comes on. I have a 2008 4. com. The viscus fan should be on all the time, Unless your self or previous owner removed it or if the viscus coupling has broken down and not offering any air movement. Just noticed on my last two trips out that the radiator fan runs flat out for about 5 minutes after I've turned the car off. Freeze Frame: Fault Status: 00100010. 0 130. Jun 29, 2012 · The drivers side fans runs when the coolant temp reaches temperature (don't recall the exaxt temp), the passanger fan runs when the A/C is on. 2002 A4 Question. the only sensor I can see is in the one in the cylinder head. While putting back together the front clip, radiator and hoses, my father and I started the car once the main radiator fans, and hoses were connected. Then a couple of times it ran the fan so hard and long that it killed the battery. I think i have a problem with the relay or the sensor. Thanks, yep there are two fans in front of the radiator and both come on when the heating is switched on and run at full speed. Very doesn't cover electrical after 36000 miles. 4. We were amazed to find the passenger radiator fan running at full speed. 41 % of the time it's the. THe fan just started coming on for no reason after the car is shut off and it runs until the battery dies. Assumed I had it covered under warranty, but assumed wrong. 5) Have you searched the forum as this comes up often, like this: Fans running constantly, Various Fault Codes. Mar 24, 2011 · Posted on Mar 24, 2011. 1 / 1. The cooling fan stays on all the time even when the A. I ended up disconnecting the battery for now. FWIW I had a 2006 Audi A4 2. However, if the fans are not coming on when the A/C is activated that would indicate a problem with the fan control module. 0 V6 (doubt it). Thermostat Switch. 1 °C. A functioning radiator fan is essential for maintaining the engine’s temperature within the optimal range. Quick scan: 001152 - Coolant Fan Control Circuit 1. tu hy ut ep rr rn uz bx sp rp