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  1. #1
    Deactivated Four Rings derek2079's Avatar
    Join Date
    Aug 02 2004
    AZ Member #
    2987
    Location
    UT

    without having someone look at it

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    What are the reasons my car would stop blowing hot air? I want to see if it's something I can fix. I took it to a shop and they misdiagnosed the hell out of this car.

  2. #2
    Veteran Member Four Rings vavJETTAw36's Avatar
    Join Date
    Jul 04 2012
    AZ Member #
    96276
    Location
    Woodbridge, VA

    Thermostat or heatercore is stopped up


    Sent from my iPhone using Tapatalk

  3. #3
    Established Member Three Rings
    Join Date
    Aug 17 2015
    AZ Member #
    349598
    Location
    Holland

    Is'nt the S4 B5 2.7T directly attached to the heater core? Or is that the RS4 B5 Avant only? The RS4 has a permanent 'line' towards the heater core, bypassing the thermostat.

    If that is not the case on the S4 B5, then the thermostat is stuck, not opening, and needs replacement.
    2001, RS4 B5.

  4. #4
    Veteran Member Four Rings NOTORIOUS VR's Avatar
    Join Date
    Jan 29 2009
    AZ Member #
    38059
    Location
    Toronto

    Quote Originally Posted by derek2079 View Post
    What are the reasons my car would stop blowing hot air? I want to see if it's something I can fix. I took it to a shop and they misdiagnosed the hell out of this car.
    Either the heater core itself is plugged up (somewhat common), the thermostat is OPEN always, or your water pump has failed.

    You didn't give anywhere near the amount of information needed to diag so, that's what you get.

  5. #5
    Deactivated Four Rings derek2079's Avatar
    Join Date
    Aug 02 2004
    AZ Member #
    2987
    Location
    UT

    I do have a bad heater core. I am learning something new everyday.

  6. #6
    Veteran Member Four Rings Zba's Avatar
    Join Date
    Nov 05 2009
    AZ Member #
    50303
    Location
    Denver


  7. #7
    Veteran Member Four Rings christianb5s4's Avatar
    Join Date
    Aug 24 2014
    AZ Member #
    277489
    Location
    Newport Beach, CA

    Lol Zba.
    Imola 2001 Stage 3 S4: 324K - 157mph 1/2 mile - 543whp/530ftlbs Mustang Dyno - Built BEL Block - RS4 cams/intake - TTE600s - Ringer Racing Stage 5 - Etspec - SRM V3 Intercoolers - AA built trans - 4:1 Diff - Vast cooler - JHM Trio - 034 - H&R Coilovers - OZ Racing - SRM/SSAC exhaust
    2024 M3 Comp xDrive
    2016 A6 prestige w/ s-line, APR Stg 1, Melen TCU, PS4S, valcona S6 interior parts

  8. #8
    Deactivated Four Rings derek2079's Avatar
    Join Date
    Aug 02 2004
    AZ Member #
    2987
    Location
    UT

    Can we just end this negatively? I was really just excited to be back after years of being away.

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