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  1. Coolant Bleed

    General E46 Forum
    Hey everyone, I have had my fair share of coolant issues with my old e46. I am pushing 240k and I love the car, it's just once a year just about for the last three years I have a coolant system failure. Tis the season and today I left my car running in between deliveries to charge my battery as...
  2. [Help] Replaced Coolant Expansion. Still Overheating

    General E46 Forum
    I had a leak coming from the coolant expansions which is why I thought that the car was overheating, so I replaced it. Now its still overheating after ive filled it back up. What else could it be? Do I need to bleed the system?:banghead:
  3. Expansion tank leak or radiator end cap?

    DIY: Do It Yourself
    Or both?
  4. ECS Tuning Expansion Tank Kit

    ///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...
  5. E46 Expansion Tank for 5 Speed 323Ci

    Miscellaneous BMW and E46 Parts
    I had some cooling issues a few months back and I bought a lot of extra parts trying to figure out what the issue was. Found the issue and fixed it, now I have extra parts, like an new expansion tank, BMW Group part number 17117573781. I am looking for a short shifter for a five speed, willing...
  6. DIY: Stewart Water Pump + Expansion Tank + Coolant Change + 2 Tensioner Pullies

    DIY: Do It Yourself
    Here's my complete DIY.. EMP Stewart Components + Expansion Tank + Coolant Change + Tensioners After 2 years, I decided to do a complete coolant change. So I took the opportunity to replace my expansion tank as well since it was leaking a bit from the top part. Coincidentally, my water pump...
  7. OEM Expansion Tank Questions/Concerns

    Driveline, Engine & DME Tuning
    In preparation for completing an overhaul to my cooling system, I was wondering, what is the capacity of our OEM expansion tank? I plan on replacing it with an aftermarket aluminum unit of some sort (hopefully that way i won't have to worry about cracking). Also, what size fittings does the...
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