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Thread: No heat

  1. #1
    Join Date
    Dec 2014
    Location
    Bayside ,ny,us
    Posts
    1
    My Cars
    2002 bmw 325i

    No heat

    I have an 2002 325i,I feel like I need to tell you everything cause it might help,have the car about two years car was leaking oil I would frequently top it but I went on long trip didn't pay attension they car overheated pretty bad the car was bone dry of oil and antifreeze put in oil and fluid car had heat that day but then next day lost heat,since than I changed water pump,thermostat twice,bled system still no heat,if someone can help I'm hearing it could be your heater core to first try reverse flush before putting in new one can someone tell me which hoses I should reverse,would like to try that before taking on the job of changing core thanks so much

  2. #2
    Join Date
    Oct 2013
    Location
    SF Bay Area
    Posts
    873
    My Cars
    '05 330 ZHP slosh box
    Are you saying the car has:
    - overheated badly due to leaking oil
    - bone dry of oil
    - antifreeze was put in where the oil goes

    If that's all true... Wow

    2005 E46 330 ZHP Imola Red
    2004 E46 325 M56 Steel Metallic Blue - Sold

  3. #3
    Join Date
    Apr 2011
    Location
    Mcloud, Oklahoma
    Posts
    3,098
    My Cars
    '99 323is, '00 323i 528i
    No, he's describing two simultaneous problems...oil leak and an overheat, which left both systems empty.

    Did the coolant blow and leak out somewhere?
    Does it now run at normal operating temp consistantly?
    What does your ambient (outside) temperature show?

  4. #4
    Join Date
    Jul 2010
    Location
    CA
    Posts
    47
    My Cars
    BMW E46 2000; E61 2007
    Did you do the bleeding on an incline (nose up)? If not, then try that first.

    If there is air trapped in the core, then you won't get heat.

  5. #5
    Join Date
    Apr 2017
    Location
    Sd
    Posts
    1
    My Cars
    325 I
    Wait when you say bleeding incline nose up do you mean when you pull the plug on the radiator? I had to replace my radiator, my battery, my alternator, spark plugs, 02 sensor, timing belt all after they repoed my car when it was 3 day weekend. So i got screwed. Now my heat is blowing like the ac. Is on.
    Also somehow they broke my sunroof too. Ideas?

  6. #6
    Join Date
    Mar 2017
    Location
    Norwich, Connecticut.
    Posts
    486
    My Cars
    E46 wag. E36 convertible
    First off....your inattention, or ignorance, may have a following for the additional issues also related to engine seizure...including 'heat' that you bring here to this BMW forum, and or any automobile forums with those situations that can allude to your current state?

    My first quest for you....if one of your tires go's flat.....do you know that there should be a spare tire in your trunk..and if so, can you perform the task of replacing the flat tire with the spare tire provided?
    Last edited by Eaglesail; 04-27-2017 at 06:16 PM.

  7. #7
    Join Date
    Dec 2013
    Location
    Chicagoland area
    Posts
    4,372
    My Cars
    EXOTICS
    Perform a cylinder leakdown test to check for damage from overheating.
    No oil or coolant, can't believe that engine is still alive!

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