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cooling

  1. E46 325i over heating

    General E46 Forum
    I burped my car yesterday and during the process of that it didn’t overheat but I’m not sure where the water and coolant went bc it would be full when I start burping but by the end there would be nothing in the reservoir, can someone help me, I replaced my thermostat, radiator, ac thermostat...
  2. Auto Transmission cooling lines

    General E46 Forum
    One day, about an hour away from home my fan blade exploded and cut my transmission cooler up so I acquired a new one. While uninstalling the line from the cooler I broke the quick connect fitting so I thought I could just throw some hoses over each end and clamp it and be fine. I was wrong. So...
  3. Purchase Evaluation Questions - Cooling and Lean codes

    General E46 Forum
    I currently own a 2002 325xi with 182,000 miles that is running very well (lots of work and PM since I bought it 5 years and 50,000 mi ago. I have done most of the work myself. I am currently looking (for a second car) at a 2004 325i at a dealer who is selling it as an "as is" wholesale sale...
  4. Brass bleeder screw - good idea, or asking for trouble?

    General E46 Forum
    Hi there, Been having some issues with coolant slowly disappearing from my e46...replaced the thermometer housing recently, after a whole cooling system replacement ~2 years ago (water pump, impeller, etc). I've replaced the rad cap in case that had any effect, but I'm wondering if replacing...
  5. 328i is overheating on very hot days in traffic although no coolant leaks etc

    General E46 Forum
    My 328i just started to overheat in this summer heat and we cannot seem to find any problems with the cooling system ALTHOUGH there is no auxiliary fan sensor box mounted on the shroud and I can't remember if there ever was one. Can't even find a cable to run to the box either if there was one...
  6. 335i e92 LCI Water Pump

    E90, E91, E92 & E93 - General Forum
    Hey guys, Does our forum have a sponsor that can help give a discount on an electric water pump? I"m afraid mine is starting to fail. Or can someone point me to where I can get a reasonably priced one? Need one asap. Thanks!
  7. 2002 316i clutch fan or electric?

    General E46 Forum
    Hey guys, I was wondering if a 2002 316i has a clutch fan or an electric fan? If it's a clutch fan, is it hard to switch to a temperature operated electric fan? And how would one do this? Any help is appreciated since I couldn't find any info while googling for it. Thanks in advance.
  8. For Sale:Bosch Cooling Fan Control Module

    Engine & Performance
    I have a Bosch Cooling Fan Control Module (1 137 328 115) that works on E46s. It is a Gen 2 type (latest) from a 2003 Ford Crown Victoria. It has no signs of corrosion and has tested out ok on my 2001. This should work well, if you have a 2001 to 2006 E46 (manjual or automatic) with a Bosch...
  9. Really Starting to hate E46's...

    General E46 Forum
    Hi everyone, not really active on the forum but do on time to time. So I got 2 330's. Both Sedans. 2001 and 2003. The 2001 I bought it high mileage, 270k Km. Apparently it was lady driven. This also happened couple of years ago, this was my first E46 not my first BMW. So i somewhat knew how...
  10. Engine cooling problems

    General E46 Forum
    So last night after I raced my friend I looked on my dashboard and my engine was over heating! I pull over and there is like a storm of steam coming out near the coolant tank. We let it sit for a while to let it cool down and there was this boiling sound we heard also. I was trying to get it...
  11. cracked block behind water pump

    General E46 Forum
    my water pump failed which caused my mechanical fan to fail which flung fan blades into my radiator and hoses. i got new everything but then when i took off my old water pump the block behind it is cracked. can't simply get new block so i may weld / jb weld / ***8230;? any advice would be...
  12. Strange cooling system problem

    General E46 Forum
    Hello E46'ers! I've come to the experts again for help. Let me provide some background knowledge. I have properly bled the system, and re-confirmed this many times. 20k miles ago, I overhauled my cooling system (done at 100k, I am now at 120k). I replaced the fan clutch, upper and lower hoses...
  13. Low coolant question... Weird

    General E46 Forum
    I topped off my car with water/coolant to the max needle point and after I drive my car for like a week I check the coolant in the morning to make sure it's good when the car is cold and the needle is all the way down every time. I thought it was a leak but when I unscrew the bleeder screw it...
  14. Cooling system issue

    General E46 Forum
    I have a 2005 335i and I cannot for the life of me figure out what's wrong with it. I'm new to the forum but I've been doing some searches and can't find a similar situation. It started with my expansion tank cracking which I replaced. Then about a week later my radiator cracked, so along with...
  15. Need help with two little things on late M54

    General E46 Forum
    Hi. My son and I just finished up the tear down/cleanup/rebuild of the intake system on his 04 325 Ci (late production M54 - so its the model without the secondary air vacuum system hanging on the end of the manifold). Everything thing went well, but I have a question about the small hard tube...
  16. Water pump failure, parts questions

    General E46 Forum
    Hey, over the weekend I had a water pump failure. Have some input on a few things i noticed before the failure which I will post to this thread tonight. Just want to get the questions out there so I can get parts ordered. Front bearing on pump is completely gone. I took the pump off. I...
  17. Looking for an aluminium expansion tank and racing thermostat

    Australia
    Hi Guys, Looking to do my cooling system and have found some cool products online! Mishimoto do an aluminium expansion tank that I would love to get my hands on or something similar. I have also seen some thermostats that let the system run cooler. Does anyone know of any local shops that sell...
  18. Manual E46 - ECU box cooling fan 12907570074

    Interior
    sold...
  19. HELP: Small Head Gasket Leak, what to do...

    General E46 Forum
    Hi All, Car: 2004 330CI / 125K miles. Recently my water pump blew out and the car began to over heat but NEVER reached the red mark. A mechanic fixed the pump and two days later my car over heated again this time reaching the red zone for a second before i turned the vehicle off. Had the car...
  20. No heat and intermittent coolant light

    General E46 Forum
    Recently I have been experiencing two issues with my car. I feel as though they could be related. 1. The heat pretty much does not work at all. Its been a gradual decline over the past month or so to the point that I'm not sure if it works at all. It definitely does not work when the car is...
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