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  1. E46 (1999 - 2006)
    I have an 05 330xi that's had constant cooling system troubles. After I overheated back in November and stalled out, I replaced most of the hoses, the expansion tank, the thermostat, and water pump. I keep having persistent leaks dead center. No fluid on the pulleys so it definitely seems to be...
  2. E46 (1999 - 2006)
    Thanks for excellent posts on replacing components of the cooling system. They were great in process and parts list. After reading them, I ordered the parts from prominent suppliers specifying some parts to be OEM. See parts list below. Today I received the Coolant Expansion Tank. How can I...
  3. E39 (1997 - 2003)
    Q: What is in the Bar's Stop Leak product and what will it actually do in an E39 that overheated? Normally we have a canonical thread for what every common fluid does in the E39, but today, while trying to help someone with a head-gasket/cooling-system/cracked head leak, I typed /bars leak F3...
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