E46 heater core symptoms. I have never done it on an E46 without removing the dash.
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Typically, this is either done with the help of engine coolant or electrically. Dec 2, 2008 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. You could also flush the heater core to confirm no obstruction. You have little or no heat inside your car. So my theory is the bad valve damaged the heater panel. Sep 13, 2020 · Photos of the hose you are trying to replace, and description of the symptoms related to that hose, the heating system, etc. First thoughts would be to inspect the thermostat, and heater core valve, as those are typically the most influential pieces that contribute to poor heating. The heater core is coated with housing or casing and is found under all the components behind the dash. Nov 27, 2009 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Coolant level sensor inside expansion tank. E39 (1997 - 2003) E46 (1999 - 2006) E36 Oct 12, 2008 · Update Looks like the knocking has gone after yesterday's ride with heater and blower set to max. Sep 17, 2020 · Your heater core might never die. I've been lurking and searching for a solution to my climate control problem and so far have found plenty of threads pertaining to similar problems, with no real solutions. It see it reads the IHKA gets data from 5 sensors, however I don't see what possibly would allow the hot water solenoid (which is new on this vehicle) to stay open while the AC is and working fine (perfect charge and pressures: comp clutch engaged, front condenser/rad fan working), the outside ambient air temp sensor seems to displaying the correct outside air Jul 7, 2016 · Then, unclamp and then pull the inlet hose from the lower heater valve port and allow coolant to drain. His contacts in the BMW parts supply business also denied knowledge of any HCV's requiring replacement. P. Jun 30, 2022 · What is a PCV Valve Heater? The PCV Valve heater, as its name suggests, is a component that prevents the PCV valve and the blow-by gasses from freezing in cold ambient temperatures. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 14, 2019 · I delete the heater core with a DIY kit similar to the one posted in this thread at the beginning. The evaporator temp sits between 7-10C. Jul 9, 2009 · Heater valve opens hence coolant flows through the heater core too . Jun 1, 2020 · Guys, I ****ed up bigtime. The aux pump and heater valve need to be confirmed working. X3 e46 radiator hvac heaterHeater symptoms valve e46 hoses failing Heater core e46 bmw air series e83 con models sku behrE46 heater resistor replacement. I would remove the clamp and the hose to see the surface on the port, that covered by the hose. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jan 14, 2022 · There are several telltale signs that you’re experiencing a heater core problem: 1. but i know didnt touch any other sensors such as one on block. It's hard to say if the leak is at the hose/heater port clamp point, or a cracked heater port next to it. Shop our wide selection of Heater Core for your BMW 3 Series E46 (1999-2005) Add to Wish List. Feb 1, 2009 · Heater cores can fail on any car, but I would eliminate all other possibilities before going to that point. Apr 11, 2012 · Introduction: This thread is for you if you just purchased your E46 3-Series and/or have more than 75,000 miles on your current cooling system on your E46 3-Series BMW. This is the most obvious sign your heater core has stopped functioning. The reason I want to bypass it is to save me from having to deal with a failed heater control valve (which will result in warmer AC temp) or heater core leak (self explanatory). The heater core acts as a source that pulls heat AWAY from the radiator. (1) New Heater Water Hose for BMW. 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 Jun 24, 2017 · 5. Howard Jun 24, 2014 · The E46 has a feature called "Service Station" which operates by keeping the HCV closed for three minutes after the engine is shut off in order to keep hot fluid out of the heater core thereby stopping a surge of hot air when the vehicle is restarted. compared to taking dash out much much better. If your engine coolant temps seem to be fine and have not changed I would focus on a sticking heater valve. Oct 22, 2023 · Main Symptoms of a Clogged Heater Core. Then turn car on, close cap and run the car with the bleeder slightly open (it has a small slit when its almost screwed closed to let air out) and let the engine warm up. Didn't keep track of which heater hose went where. Hoping someone can verify my picture below with the new hoses. You want to keep track of where the little silver clips that hold the lid on the heater core box, they're small and go flying when you pry them off. Feb 20, 2011 · That expansion tank does not exist I am guessing it is for base e46 those parts aren't listed for M3 page on realoem where I linked that pic. I have never done it on an E46 without removing the dash. May 22, 2012 · I'm building an E46/M3 GTS 3/4 race car. One of the biggest projects i did. Besides that everything went smoothly. It is very easy to overheat a e46 when it is low on coolant. Feel the lines coming in and out of heater core, see what you get. Leak won't heal itself, and can just turn into major one, then you lose ac in a day you are least ready. Apr 4, 2015 · You might want to start looking in behind the fan blower from the engine bay - you can get a fairly decent look at the heater core from there and you might be able to diagnose where a leak if any is originating. Nov 4, 2019 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. I recently flushed my heater core, checked my heater control valve, which in my opinion is working properly since nothing was stuck or clogged. Having actually done the job, I can't fathom how one could change the heater core without removing the dash. The black box that the heater core sits in has a drain inside of it that is very effective at pouring the water outside the car. Heater core replacement. Removed the intake and doing a bunch of work. The most common symptoms of a bad catalytic converter are a sulfur smell when the engine is warm and a check engine light on your dashboard. Jul 31, 2011 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. But when you turn on the heat, it never warms up. May 23, 2024 · Check Details Oem bmw e46 heater core assembly 99-05 323i 325i 328i 330i 325xi 325ci. Transmission pan temperature is also around 190-200F while INPA is reporting 200F. Bmw e65 e66 f01 symptoms of bad pcv valve, ccv valveBmw e46 heater control valve symptoms Bmw e46 heater valve replacementPcv valve heater question 5. Heater core inlet is about 10-15F higher compared to outlet port. Oct 1, 2016 · If this is bad then it could be preventing hot water from getting to the heater core. No change. 4l. RealOEM diagrams are really confusing when it comes to these hoses. If you notice the smell of coolant, foggy windows, or coolant leaks, these are also signs that the heater core may be malfunctioning. , 111 Nov 24, 2014 · There were also short to negative faults stored for the heater valve and AUC heating and would not clear. Jan 8, 2016 · One of the first symptoms of a faulty heater control valve is a heater that fails to produce warm air. They are in different sections that dont reference each other. BMW did this do that the coolant can flow through the heater core even if the car is located in Miami. This hose runs on the chassis rail, higher up than the return hose. I had the dials all the way red, it was happy with the coolant level and the float is right flush with the top, it could be that 3rd once since it got freezing here a few days ago, already checked heater control valve, it was happy, and it might be he thermostat since the car seems to open it a little higher than it Dec 18, 2017 · 2004 E46 (325Ci) coupe here with 203,000 miles. It installs into the HVAC heater housing. There is obviously a feed from the motor to the heater core, a hose out to a sensor, then a hose from a sensor (cabin thermostat?) back to the motor. Nov 28, 2023 · I would do this: remove the engine bottom plastic tray if it's still installed, run engine and let idle until temp got to 93C, turn off engine and get under it to look for leaking around radiator bottom, hoses, water pump, Tstat, tank bottom, left side of engine block. Check Details. I described the symptoms to my (very honest, very knowledgeable) independent BMW mechanic, and he had never heard of the heater control valve going bad. May 31, 2018 · I went to a pull a part a got a similar condition heater core for $16. Inlet temperature at the core is about 210 when INPA is reporting 200F as well. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jan 20, 2017 · Heater valve or thermostat primary suspects. This May 1, 2017 · I need to know the diameter so I can get the right size plugs for the heater core inlet and outlet as well as the coupler to join the two hoses. Oct 22, 2015 · The system works first off the control panel (10 or 12 button are interchangeable), the system reads the ambient temperature sensor under the drivers front bumper of the car, The heater core temperature sensor and the AC core temperature sensor. Clogged Heater Core Symptoms. Since I have not preformed this task myself I can not give you any tips but the manual suggests having a professional do it - I'm not sure if there is a DIY on the forum regarding this. Often it is helpful to squeeze the lower radiator hose in an attempt to "burb" air out of a cooling system. My guesses: A - goes to bottom of heater valve B - goes to top of heater valve C - goes to expansion tank Wasn't able to find this info in bentley manual. Jan 7, 2010 · 1. Dec 14, 2014 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Unfortunately when the heater core goes, the coolant tends to follow the lower vent resulting in a wet floor like you've stated. Repairing a damaged or leaking heater core: If the heater core is damaged or leaking, a mechanic may be able to repair it. 2 bar over the course of two hours) Nov 3, 2023 · E46 heater workingBmw e46 heater blower resistor fsr removal and diagnose 320i 323i 325i E46 blowerBlower e46 325i. Jan 27, 2014 · Symptoms. Hot coolant that has passed through other parts of the engine is run through the heater core as air is forced past it and into the cabin of the vehicle to heat it. Here are the main symptoms of a clogged heater core: 1. issues ( and i killed two engines in my car so far ) and I am going to go for PEI330ci’s 3 screw custom solution (manufactured by a CNC machnist friend of mine) Mar 14, 2009 · I am taking my heater core out completely of my E46 M3 as it will become a race car. Jan 3, 2015 · By now, we're probably all familiar with the infamous BMW HVAC system stink. Every post I read said a broken heater core would give you damp carpets or a strong coolant smell but I really didn't have either of these at all. Heater System for BMW 3-Series E46 (1999-2006): HVAC Heater Hoses and Pipes Free Shipping over $99! Heater Core Return Pipe Part #: 11-53-7-838-756-BOE $ 738. But since you say you're losing coolant, they're almost surely related. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Sep 18, 2013 · Im replacing heater pipes 8 & 9 in the diagram. First thoughts would be to inspect the thermostat, and heater core valve, as those are typically the most influential pieces that contribute Nov 18, 2009 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Ccv e90 pcv 325i 328i 330i e46 320i 318i 335i 323iBmw z4 z3 symptoms of bad pcv valve, bad ccv valve Predicament heater valve recover any jpegCant find the heater Nov 29, 2015 · Heater core- I need to finish gutting the 01 anyhow So, no biggie there. Plenty of info on e46 cooling systems on this forum and other e46 forums as well. 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. The water valve is electrically pulsed to control the flow of coolant through the heater core. I have NO idea what Model & Year vehicle you are working on, so please add that information as well. These are both known problems on older e46s so there's lots of info if you search. With that additional info I came across this thread pertaining to the HCV being constantly engaged; solution was to replace the heater control unit. First open your glove compartment and remove all the items from within. 1. Any temperature, any blower fan speed, any combinations of floor - center or windshield. The main coolant route is within the engine block, that is just a path to the heater. Nov 11, 2017 · When you say the heater control valve is ***8220;downstream***8221; from the heater core, are you suggesting that coolant travels to the heater core first, and then restricted if in COLD operation from returning to radiator? The heater core and heater control valve are used in both the A/C and heating modes of the IHKA system. also you only gotta take out 4 of the metal clips holding the plastic cover on the box. So, this seems like there is minimal flow through the heater core. Symptoms are: - Normal engine temps - not past 12:00 The heater core is a secondary branch of the coolant Jan 25, 2009 · It is a must to check, and replace when needed, all cooling system parts on an e46. two hold the bottom tray in leave those hardest to get to. The first and most obvious bad heater core symptom. patallen · Registered. You can see where the bracket would be). Nov 21, 2023 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. What’s happening is when you switch off the ignition the heater control valve goes wide open. It is a plunger type valve that controls how much hot coolant flows thru the heater core (which is then blown into the cabin) via the blower motor. Apr 7, 2012 · Hi there. Apr 13, 2024 · Recognize the symptoms of heater core malfunction to guarantee timely detection and resolution of potential issues. Sep 8, 2023 · REIN Engine Coolant water Hose Heater Valve to Heater Core For BMW E46 3 Series | eBay NOTE: Heater Water Hose - Heater Valve to Heater Core. Aug 5, 2023 · Figure 1 Shown here is the BMW E46 final stage, itï¿Â1/2s located below the passenger side dashboard at the transmission tunnel. When i clamp the supply hose shut soft visegrips the heater core drops to 25C or less and the ac works pretty good. The heater core is responsible for heating up the inside of your car when it’s cold outside. I don't believe it can be done. Nov 29, 2012 · I had the same problem with a 330 at work, there is a valve that controls flow to the heater core located near the drivers side near the firewall, I forgettthe exact name of it but if I remember correctly theres 3 hoses that go to it, its kind of a pain to get but its there, if you follow the coolant hoses to the back of the drivers side of the engine bay you'll see it, that could very well be Nov 23, 2016 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. The coolant your seeing is coming from the vents which go to the floorboard. I tried to backflush the heater core with water. Jan 10, 2011 · There is a hard to see engine cooling hose that goes from top rear center of engine (below the cabin air filter housing) down to the heater valve. Take a picture again of your coolant level and drive with the heater on. Dec 30, 2018 · When i bought the car 3 years ago the heater was giving more heat until this year now its taking a long time to give heat and less heat than before, i took the valve apart and plug it into the car it was stuck, 1st time after cleaning it with some cleaner it worked again when plugged to the car the valve it open and close now Sep 30, 2019 · A bad heater core will exhibit symptoms such as a problem with the engine coolant system, a smell in the car, fluid leaking from behind the dashboard and a car heating system that doesn’t work. -----Hi everyone! Just bought my first e46 a 2001 330i 5spd, it's my backup car and something I hoon Oct 1, 2023 · Bmw heater valve repair. Joined Jan 7, 2009 · 59 Posts Aug 4, 2015 · My heater core is obviously not plugged, so no need to flush, and the HCV is obviously good but it's being energized all the time, blocking the flow of coolant through the heater core. There could be a couple of issues. 2. I believe water pump and thermostat are working , heater core is getting coolant . ) If the heater core is clogged, then it is clogged with goo and gunk. Apr 12, 2016 · Some hoses going to heater core All gaskets (intake, ICV), O-Rings (for fuel injector), since it is removed during the intake manifold removal Vacuum lines OFHG Coolant sensor (since it had more than 100k on it) CVV and its hoses 2) Cleaned the Alternator vent Throttle body Side of the engine which was opened. Cheers Aug 1, 2017 · ii) Does the heater control valve circulate coolant to and from the heater core with the engine off iii) Is there an auxiliary water pump in the system? If so where? Which fiche? iV) With the engine running and the expansion tank cap open should coolant be circulating/flowing from the two spouts at the top of the expansion tank filler neck? Feb 21, 2012 · Taking the dash out is quite easy really. Jan 4, 2013 · But one thing I've noticed is IF its cold out (< 30 degrees), you are using your heater core, the lower hose will be cold to touch. Also note the inputs - very much like the logic of the e-fan - in fact almost all BMW PWM devices operate based on multiple inputs to calculate a final output. e. I believe it is a goes to the heater core inlet. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 9, 2016 · Then, unclamp and then pull the inlet hose from the lower heater valve port and allow coolant to drain. Hopefully, you did not blow a head gasket by not addressing this coolant leak in a timely manner. Add: Choose a wish list to add product to: Add Cancel. Common Signs of a Faulty Heater Core. gently pry out old Oct 22, 2023 · Symptoms of a Leaking Heater Core. Generally, the coolant lines to the heater core are above the Accelerator Pedal Module. ) I doubt the heater core is clogged, but it could be I suppose. Jul 28, 2016 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Sep 4, 2020 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. As this engine has the notorius oil pump, chain etc. It is important to be aware of these symptoms so that you can address the issue promptly and prevent further damage. Mar 12, 2012 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Dec 14, 2010 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Depending on how your heater core fails, the symptoms and effects on the cabin can differ greatly, varying from freezing cold to burning hot. But watch out if you were driving then the conduction heat from the engine could warm up the tube and you might not be able to tell. May 7, 2022 · was going to replace the coolant hard line that runs from the block under the intake to the heater core but I found it to simply be plugged. LOW COOLANT LEVEL ALL THE TIME. IMG_0580 by Garrett Colburn , on Flickr Apr 17, 2012 · Hey everyone, Well, first time posting after recently purchasing a 2002 325i wagon. This is a m54b30 I pulled from an e60 in a junkyard. Im trying to order a replacement hose that attaches to heater pipe 8, where the red arrow is. A clogged heater core can cause various issues in your vehicle’s heating system. I've seen 4 threads with symptoms of a poorly bled system. It does this by taking heat from the engine coolant system. ( a clogged rad can also prevent circulation meaning the coolant in the heater core does not get cycled so it eventually has no heat from the blower cooling it. Coolant temperature sensor at cylinder head. Heater Cont Jul 25, 2017 · I used a flat blade screw driver to pry and wedge those pipes into the heater core. 5 gallons). Dont think it had stop leak in it. Dec 6, 2020 · The water valve is pulsed to control the flow of coolant through the heater core as on other systems. It might be possible, but that is one of those things where you will end up spending so much time working around the dash, it is far faster and easier to just pull it out. Problem is that I pinched too hard and bent the pipe. Dec 11, 2007 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. the heater core out, and pipes exposed. Jul 11, 2024 · Heater valve and heater core (for climate control). Aug 7, 2017 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. So if you have evap leak, just do it. It is for the high end models, E32, E38, E39 to keep hot coolant in the heater core since those cars have big coolant systems (my E32 takes 3. The center plastic that receives the radio and climate boxes is not modular - it is part of the overall dash assembly. Took an hour to get those pipes in be patient. Oct 25, 2022 · Driver visibility is a critically important factor when driving in all conditions. Also a scan of the engine and ihka module would help. Feb 4, 2024 · Heater e90 320iHeater symptoms valve e46 hoses failing E31 heaterBmw e46 heater control valve symptoms. drivers side fitting to top/bottom of water valve or to radiator? Does the hose from the engine go to the top or bottom fitting of the water Oct 22, 2016 · There is little to no heat coming out of this E46. It is important to be aware of the symptoms so that you can address the problem promptly and avoid any further damage. Any ideas?? Oct 22, 2016 · There is little to no heat coming out of this E46. And even if it happens, you do not need to remove dashboard in order to access core. Face it, these cars are old, most are not worth the time, money and effort to remove the cylinder head. So my question is which heater core hose goes where. Kit includes: Machined 6061 head plug with 1/8" NPT port for water temperature sensor (port plug included if not used) Nov 12, 2022 · The heater core in my '04 325iT plugged at 240k miles I dismantled the water heater valve and it looked perfect inside. Your vehicle is running fine, with the temperature gauge reading normal and no other cooling system problems. Some hot coolant flows into the heater core. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Feb 17, 2019 · It will not clog up the heater core or radiator, it will not really cause you any negative problems. I unplugged the heater core isolation valve again tonight. A clogged or defective heater core will display some symptoms to alert the driver and to fix it promptly. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jan 3, 2020 · The upper heater core hose connects to bottom of the plastic fitting on the upper radiator hose where it's attached to the radiator. Besides masking a major repair, it has potential further repercussions of clogging the small passageways of the bleed orifice at the expansion tank, the cross hole inside the two halves of the thermostat and possibly the heater core. Swapped the heater panel from my wife's car and everything worked and the faults cleared. Jul 28, 2015 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. A clogged heater core will prevent the coolant from passing through it, limiting the amount Feb 10, 2010 · E46 General. There's just something about the design of the BMW heater box - the large, complex black plastic enclosure that sits between the dashboard and the firewall and contains the HVAC blower, A/C evaporator and heater core - that allows moisture to build up and provide an inviting environment for mold and bacteria to grow. Issue is solved/understood. Transmission and transmission lines temperature was checked with IR temperature gun. It's the one underneath the fitting in this photo: The lower hose is much lower buried under some other things. I just received the used heater panel but have not installed it yet. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Oct 17, 2010 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Weak or no heat from vents Jan 4, 2012 · The E46 uses a single water valve and heater core to provide passenger compartment heat. May 3, 2017 · Simple thing it to just unplug the heater control valve until you know the cooling system is bleed, even if this is for a 1 or 2 days of driving. This can involve soldering or patching the damaged area. Pressure testing your BMW cooling system is the best way to find leaks. Signs of heater core failure can include: Foggy windows, suddenly and without warning. 2 bar over the course of two hours) Aug 24, 2023 · A mechanic will use a special tool to flush the heater core with a cleaning solution, which can help restore proper coolant flow. I tried to bend it back the way it is but this seems impossible to get it 100%. When I renewed the front carpet in my M3 without removing the heater it was still a pita even after cutting it, I had to cut the new carpet in half to refit which is what I believe the BMW techs do now. Bmw 3 (e92/e93) 2008 heater radiator heater matrix petrol 160kw vei998111-2-13 heater core mess 97 bmw 5 series Beemer lab: bmw e30 heater matrix hoses configurationCrankcase breather heater relay location replacement bmw e90 e91 e92. 1-0. Heater core and supporting h/w have all been removed. I. Feb 14, 2019 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. This sounds like my issue if the feature was to fail and never realize that the 3 minutes is up. No change: Then I got aggressive. Pour in cold, with bleeder off and it will fill the block. Of course, the heater hoses going directly through the firewall. So: all three hoses associated with cabin heat and the heater core were cool, not warm, to the touch and all the same temperature. Without coolant flow to the heater core, the heater will not be able to produce warm air for the cabin. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Following symptoms: slight coolant loss with no external signs of drips cooling system gets to 2 bar pressure when tested, and loses it very slowly (drops 0. for any sights of discolor due to oxidation/corrosion by the metal exposed to the coo May 11, 2015 · Loosen this T15 bolt to make it easier to move the pipes for lining up the new heater core (it's in the middle of the pic, I uninstalled it already. A leaking heater core can cause various symptoms that can indicate a problem with your vehicle’s heating system. above 4k rpm it hits 95+ degrees from the vents, but at idle, it drops down to 65-70 degrees) Put in the new heater valve, and same thing. ) If it is clogged with goo and gunk, then you should be able to clear it by simply flushing water through it with a garden hose. Jan 24, 2017 · I've disconnected the heater core and plumbed the inlet hose directly to the outlet hose at the core directly on several vehicles over the years to totally bypass a leaking heater core with no ill effect. Nov 3, 2011 · The back of the heater core is also accessible from the engine bay. turning the dial freely moves the lever at the heater core Dec 11, 2007 · How can you tell if your heater control valve is bad? flooding the driver side of the heater core with warm coolant. E46 Fanatics Forum is not in any way affiliated with Bayerische Motoren Werks AG VerticalScope Inc. Jan 11, 2008 · 64218363198 SHORT HOSE - Runs from the heater valve outlet to the heater core inlet. A faulty heater control valve can cause issues with the water flow to the Feb 15, 2022 · Leakstop is NASTY stuff. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jun 16, 2021 · The heater core sits almost horizontally in the HVAC enclosure, so it doesn't take all that much silt, failed coolant chunks, aluminum flakes and dandruff to start to fill the core. With the hoses from the heater valve and expansion tank to the heater core out of the way, there is now enough room to unclip and pull the inlet hose that runs from the rear composite pipe under the manifold to the heater valve. The final stage resistor could also be a problem. May 3, 2023 · Sorry if this has been covered, but I can't find anything from google or searching the forum. Recently I finished my engine swap, but the rubber hose going to the heater core was stuck and it wouldn't come off. After running the car for a while, both hoses from the heater core isolation valve were lukewarm to the touch. Also, I ordered a behr heater core and it did not come with the two o-rings, so I had to run to the dealer to get them. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jun 20, 2006 · This was also my experience. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 12, 2017 · also cleaned heater core water valve Heater is blowing nice an hot now, i think water pump was bad before so now with new one in however Im starting to think this is a sensor issue i thought i replaced lower hose sensor sorry this has been a rebuild over period of a year. Oct 1, 2023 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. I can't imagine that a 325 would be any different (but am always willing to learn, if there truly is a reason to NOT do that on a BMW). would allow us to help you. It isn't hard work. If i set it to 16*C i pretty much get no heat. As a temporary fix I did the loop with the 2 hoses going into the heater core in the cabin, but I did purchase the delete kit from Morehead Speed Works. Seems to run and drive fine if heat is set to hot. Dec 30, 2017 · Edit: with a by-passed HV the only two things left that can stop the flow of hot coolant thru the core is a weak WP (or reversed impeller) or a malfunctioning t-stat. Yes I can run a hose to bypass the heater core, but I am wondering why not cut the circuit altogether. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Jan 20, 2016 · Glad this helped. The E46 3-Series (as well as the E36 3-Series) are known to have somewhat of a delicate cooling system which are sometimes known to fail prematurely. Jan 9, 2011 · Bleed the system more. First thoughts would be to inspect the thermostat, and heater core valve, as those are typically the most Feb 11, 2011 · If your heater valve is failing, or heater core is clogged, then you might get your symptoms, but I'm not sure what the flow of coolant is through the heater core, so don't know if you'd get 'heat in sides' but not center vent, but suppose that's possible. Blower e46 climate. Jul 31, 2016 · You will have to cut the carpet to remove it without removing the heater matrix. Feb 1, 2013 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. A failing heater core can cause coolant loss, but it would leak inside the cabin so you'd probably notice soaking wet floormats. There is also a problem with your AC unit and the need to de-pressurize it. Jul 5, 2016 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Oct 25, 2017 · If the lower outlet hose is not hot, you are probably not circulating the coolant through the heater core. Dec 31, 2022 · In this video, I will explain how to diagnose problems with your heater control valve, fix it if possible and replace it if a fix is not possible. Oct 11, 2019 · The auxiliary water pump is just that, auxiliary. Aug 7, 2021 · This video should guide you start to finish on how to remove your heater core for replacement / Testing, or replacing the small O-rings that seal the heater Jul 1, 2022 · It is the one come from the head via a hard pipe then a rubber hose. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Aug 28, 2009 · Well, I am in the process of installing my replacement engine ('99 323i) and realized that I did not take not of the routing of the heater hoses. Wait overnight. Jun 1, 2014 · Your Heater Core is shot and/or the seals to the heater core are shot and will leak out even at a stand still powered down. However, not everyone has a pressure tester. Feb 3, 2018 · Quick update. Mar 31, 2019 · Take a picture of your coolant level and drive for 1 day without the heater. I drove the car for about an hour today while the heater was set to low temperatures (16-18C/60-65F), parked several times with the engine running and went out to check the heater valve. First I backflushed the heater core with boiling water and Prestone cooling system flush. BAD HEATER CORE SYMPTOMS 1. If the heater control valve breaks or gets stuck, the coolant flow to the heater core may be restricted or stopped completely. Is this something you can just delete or would this of caused some type of failure. If it dropped, it's your heater core and all the heater core hoses For reference, when the heater valve is open 3600ms L&R the heater core temps are about 80C ac on high temp setting when closed 0ms the temps sit around 60C full ac. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Dec 9, 2013 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 7, 2022 · Replace heater core on E46 Jump to Latest Follow 542 views 3 replies 3 participants last post by ste e46 Nov 8, 2022 Apr 15, 2006 · E46 Fanatics Forum is an independent BMW enthusiast website owned and operated by VerticalScope, Inc. Apr 12, 2024 · 99 e46 323 , car over heating when climate control is set to cold or off. It does not work so well on O-ring and radaitor/heater core end caps, anythig that flexes or moves will not likely benefit from these tablets. May 16, 2020 · Bimmerforums is the preferred online BMW Forum and community for BMW owners. There was no hose just the plug on the left inside the block. If that doesn't help you find anything, then for one, get someone else to start the car and you sniff the tailpipe. E46 Fanatics Forum is an Sep 9, 2021 · The heater core is similar to a radiator and is a part of the vehicle’s coolant system. . Then you guarantee there is plenty of coolant flowing through the heater core. Here are some common symptoms of a leaking heater core: Foggy or Misty Windows Oct 3, 2018 · I have 02 e46 m54b22 touring, When i turn on the heating, heat coming from vents stays the same, doesnt matter if i set it to 19*C or 32*C. Had heat at high rpms, but below 1k, temp drops pretty significantly. Radiator outlet temperature sensor; Coolant hose and lines. You may also notice engine performance issues like acceleration lag, higher or lower fuel consumption, and a misfiring engine. You see, the heater core is an integrated (connected) part of the coolant system. Jump to Latest Follow 1 - 7 of 7 Posts. Wait overnight Check fluid level in the morning. A partially plugged heater core can cause similar symptoms because an air pocket acts like a plug too. One common indicator is the lack of heat inside the car, which could signal a failing heater core. 98 Dec 25, 2011 · Bypassed the heater valve, and had heat (but it was very engine speed specific. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Mar 2, 2023 · Symptoms Of A Bad or Clogged Catalytic Converter. Nov 2, 2020 · Reaching with difficulty and inch or two further down, the outlet hose going from the heater core to the bottom of the expansion tank felt I’m pretty sure exactly the same temperature. I had the dash apart to see if there was visibility to the heater core. 3. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada Nov 30, 2021 · What are the symptoms? Why do you suspect heater core issue? (1997 - 2003) E46 (1999 - 2006) E36 (1991 - 1999) E60 / E61 (2004 - 2010) Top Contributors this Month Nov 25, 2018 · Was the hose going to the heater core hot? You must have a heater valve - that needs to be confirmed working ok otherwise bypass it to test. Content on E46 Fanatics Forum is generated by its users. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada The heater core is located behind the dashboard, either on the passenger side or on the center of the dash. Heater e46 blower resistorE60 bmw 2004 heater blower motor removal please subscribe it is free no Blower bmw 316i fan 323i e46 heater 318ci 328i 330i 318i 325i 320i motorResistor e46 heater Dec 27, 2019 · Ive had this car for about 2 months now. Temperature regulation is based on the following inputs:-Temperature control switch setting-Interior temperature sensor signal-Ambient temperature signal Jul 27, 2016 · jfoj, Thanks for the second link. Oct 22, 2016 · There is little to no heat coming out of this E46. 64218376153 LONG HOSE - Runs from the heater core outlet to the connector on the rear of the expansion tank, about halfway up. car was completely drained of coolant for about 2 months on jack stands ,I bled coolant 3 times before driving to make sure no air . When I turn off the heat, more coolant appears to go thru the radiator and it tends to heat up the bottom hose. Does anyone have experience rerouting the heater hose that runs from near the #3 cylinder to the heater core, back to the water/valve pump assembly and back to the radiator? I want to remove this entirely and simply route that hose back to the radiator. I had one instance a few years ago, where just before tearing down a BMW to do a heater core, I decided to visually check the operation of the control valves, and found the entire control valve full of some kind of silicone jelly. I am building a track car from my 323i, and have removed the heater core system. So I had to twist it with pliers. , 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada This kit contains everything needed to cleanly seal your coolant passages for a clean and functional M52TU/M54-powered racecar with the heater core removed. 3 or 4 times. How***8217;s your water pump. Jun 19, 2014 · New e46 Heater Control Valve p/n 64118369805 3/4" Hose clamps - 6 of them the u-shaped tube was then used to replace the lower hose coming off the heater core May 3, 2009 · The heater control valve is open unless the climate control module (IHKA) is sending it 12VDC. Leaking Nov 28, 2010 · Heater core: 18 Steering Wheel/Airbag (round 3-spoke): 7 E46 Fanatics Forum is not in any way affiliated with Bayerische Motoren Werks AG VerticalScope Inc. xpfndlkvegmaizlexbtfymboidhaotwhmwzjaorkxkmxdnjkzd