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Dash removal for heater core

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  • Dash removal for heater core

    Yes I did a search all I've found out was that its supposed to be easy repair.

    I'm sure I have a leaking heater core. I can smell coolant and my windows got some kinda haze on em.

    I was wondering if the whole dash has to be pulled to get this done?

  • #2
    2nd post in this thread have the step by step process for replacing/removing the heater core.

    Best of luck!

    http://www.s14.net/forums/showthread...eater+AND+Core

    I should also add...

    REPLACE THE O-RINGS on the heater core -> heater pipe connection. If you don't, there is a very good chance you will end up with your feet soaked in hot coolant once the engine gets up to temp/pressure.
    Last edited by UNHCLL; 12-21-2006, 05:13 AM.
    Chris L.

    Spray paint and tire shine doesn't equate to a "restoration!"

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    • #3
      You don't touch the dash just the center console. Take the old one out and determine which type of core and valve you have first. Then order replacements with new O rings. It's kind of a bitch to get to the 8mm bolts so it helps if you have the tools and aren't too big.

      88 M3 - LACHSSILBER/M TECH
      89 M3 - ALPINEWEISS II/SCHWARZ
      85 323I S52 - ALPINEWEISS/SCHWARZ
      91 M TECHNIC TURBO - MACAOBLAU/M TECH


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      • #4
        Originally posted by UNHCLL
        2nd post in this thread have the step by step process for replacing/removing the heater core.

        Best of luck!

        http://www.s14.net/forums/showthread...eater+AND+Core

        I should also add...

        REPLACE THE O-RINGS on the heater core -> heater pipe connection. If you don't, there is a very good chance you will end up with your feet soaked in hot coolant once the engine gets up to temp/pressure.
        Thanks!


        When mine went bad:

        -Excessive fogging of the front windshield, coupled with a more "dirty fog" covering of the inside window glass. Also had a coolant smell when the heat was turned on and fan was blowing.

        - Small puddle of coolant under the car (below transmission) when the car was running with the heat on

        -Slow but steady consumption of coolant. (Very slow... maybe half the bottle in 2-3 weeks of daily driving)


        Replacement:

        Drain radiator
        Disconnect hoses in engine bay that pass through firewall
        Cover drivers floor/tranny tunnel with plastic and keep a bunch of towels handy
        Remove center console
        Remove D.Side floor vent tube
        Undo 3 or 4 screws on heater core
        Remove/Loosen 2 tubes that come down through firewall
        Slide out old HC - be ready to absorb spilled coolant
        Slide replacement in
        reverse procedure
        add coolant... bleed system with Heat turned ON and engine running.

        All done.
        It took me less than 2 hours maximum.

        HTH,
        Chris

        ______________

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        • #5
          If you want to remove the dash anyway and have questions, let me know.
          www.ubertechnik.com

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          • #6
            Removing the dash isn't that bad! Getting back in doesn't look fun! Just did min last night
            Project M3 - Part Sell Off

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            • #7
              Yeah don't lose the bolts!! Replaced mine and lost them. Went to order and had to wait like 4 days. Apparently there were only 33 of them in the country.

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