BMW E46 Fanatics Forum banner

expansion tank

  1. General E46 Forum
    Hey guys, I have a slight leak at the bottom of my expansion tank. This seems to be the only place I am leaking coolant. All belts look dry and great. I am leaking where the lower hose connects into the bottom of the expansion tank. I am wondering besides the expansion tank, what should I...
  2. General E46 Forum
    Sorry if this is an easy answered question but I am in the process of replacing my expansion tank and I can not get it back in. I tried to get it on with the radiator still in the car but it wasn't happening. As of now the radiator and the bracket that holds the expansion tank and the expansion...
  3. Driveline, Engine & DME Tuning
    Ok guys I have a 2005 325I and I'm most definitely getting fluid transfer from the transmission to the coolant. My question is do I replace the transmission cooler itself or the expansion tank mount? I'm leaning more towards the mount because that's where the trans fluid and coolant meet, but I...
  4. General E46 Forum
    Hey all! We just replaced the coolant expansion tank and temperature gauge on my 2005 325xi after the tank cracked and lost all it's coolant on the side of the highway. We were on the side of the road for a while and must have run the battery low with the hazard lights flashing while waiting for...
  5. General E46 Forum
    Hello, everyone. I have been following everyones posts for the past 7 months since I picked up my 3 series, Lol just now im officially registered. Just last week , parked at a meeter with engine idle, then Kaboom, smoke started to come out. Shut engine off, notested coolant leaking...
  6. General E46 Forum
    Ok. So it finally warmed up enough in the Chicagoland area to start looking at where I might be leaking coolant from. 20 degrees. With hands freezing and air box/filter removed, I came across this. I cannot see anywhere else where there is coolant leakage. Expansion tank replacement needed? The...
  7. ///M3 Forum
    I'm about to replace my expansion tank and was thinking about buying this kit from ECS tuning: http://www.ecstuning.com/BMW-E46-M3-S54_3.2L/Engine/Cooling/Expansion_Tank/ES2602634/ Has anyone purchased and installed this kit? If so, what was your experience? The price seems fair for what you...
  8. General E46 Forum
    Without a doubt, the biggest pain in the ass in our cooling systems is the plastic expansion tank, which is fickle as a motherf*cker. I'm starting this thread with the intention of finding a solution to improve on the cooling system after my car decided to take a dump on me. Specifically, let's...
  9. General E46 Forum
    Hello. About two weeks ago my low coolant light came on. I opened the expansion tank cap, and it was very low. I filled it with distilled water, as I did not have any coolant whatsoever, yet alone bmw coolant. It was good for about 5 days. I drove about 30 miles to an amusement park, and of...
  10. General E46 Forum
    I have a 1999 BMW 328i 5 spd. Bought the car around 60k miles 6 years ago. The stock expansion busted sometime years back. I ordered a new one from Autohausz 4 years ago and busted yesterday. Waterpump,hoses,belts, radiator was all changed 4years ago too. Should I change all of those parts again...
  11. General E46 Forum
    After replacing the radiator, I came across this mystery part. Looks like a rubber grommet of some sort and I cant figure out where it would go. Only clue is that the expansion tank seems to be leaking now from the bottom. Any help or clues as to what this is or where it came from?
  12. E46 Xi Forum
    I need to buy an expansion tank and motor/ trany mounts along with other odds and ends? Is there one place I can go ?
  13. ///M3 Forum
    Can driving 4miles with an expansion tank separated at "weld" seam damage the engine? Hi folks, Recently I was sitting at a red light I heard a popping sound, right after the light turned green I pulled over and saw some dripping of what looked like coolant close to the passenger-side front...
  14. General E46 Forum
    This post 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. The BMW E46 3-Series is among certain BMW models that are known to to suffer from cooling-related failures, often times catastrophic due to...
  15. Parting Out
    NAME: Abrahim LOCATION: Conroe,TX EMAIL: [email protected] PAYMENT PREFERENCE: (i.e. - paypal, cash, etc...) ------------------------------------------------------------------ PRICE: $50 + shipping ITEM: Used OEM Mass Air Flow Sensor in working condition PICS: PRICE: $30 + shipping ITEM...
  16. General E46 Forum
    Hi guys, I have a 2002 325i with 47k miles that has developed a severe coolant leak.:woot: It emptied the expansion tank in about 3miles. I got it up on jack stands and ran it for a hour. The only leak i noticed when it was running was a few drops under the Expansion Tank. These are my...
  17. General E46 Forum
    i got a 2000 323ci, Few weeks ago my car wouldn't heat up:banghead:, figured thermostat was failed in open position, changed the thermostat, got it from BMAPARTS.COM, replaced the thermostat and the car worked just fine until few days later the expansion tank cracked:ben: on the side and i...
  18. General E46 Forum
    Hello, I recently bought a 2000 323i, car is in tip top shape very clean only 100k miles and very well maintained. Car is 5 speed and drove it fine. The other day my coolant light came up so i bought 50/50 and filled it up. Unaware about bleeding, today i was driving and i see a bunch of smoke...
  19. Engine & Performance
    I am trading in my BMW for a new vehicle next week and have a bunch of parts laying around still in the boxes they were shipped in, that I need to get rid of. I have an entire XI Koni/Eibach suspension kit NIB for sale in a different thread, but I also have: BRAND NEW IN BOX: ECS COOLING...
  20. General E46 Forum
    So I have a an e46 with the original water pump and expansion tank. I have a 167000 km on the car so I'm sure it's overdue for a new one. I don't have any problems for now. But I'm sure they will soon appear. Based on what I've read, it sounds like I have to replace more than just the water...
Top