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Thread: The Random E46/ZHP Question Thread

  1. #7161
    Join Date
    Nov 2017
    Location
    Seattle
    Posts
    515
    That extra mpg lost is one thing. I guess what I am more concerned about is the longevity an quality of the a/c system. My understanding is the system needs to dry out a bit before turning off the engine to inhibit growth of mold and bacteria. Also could be bad for the compressor, leading to premature failure? Someone correct me if Iím wrong.


    Sent from my iPhone using Tapatalk
    ~ 2005 330ci ZHP Silbergrau | Black cube | Leather ~
    Current Mods: Akebono brake pads, Bilstein B4 Rear Shocks, Beisan Systems VANOS Rebuild, G.A.S. DISA O-ring, StopTech SS brake lines, Subwoofer tennis ball mod, Switchback Angel Eyes (turn signal), Zimmermann drilled rotors.
    My project thread ---> http://www.zhpmafia.com/forums/showt...into-a-reality

  2. #7162
    Join Date
    Jan 1970
    Location
    Branford, CT
    Posts
    15,720
    Just use Auto, guys...
    BP
    2005 330i ZHP / 6MT
    Imolarot / Naturbraun



    It's not the car you drive, it's how you drive it.

  3. #7163
    Join Date
    Jul 2018
    Location
    Campbell, CA
    Posts
    168
    Quote Originally Posted by az3579 View Post
    Just use Auto, guys...
    Yeah I set it to auto and never touched anything aside from the vent dial since I got it.

    Sent from my SM-G973U using Tapatalk


    2004 BMW 330i ZHP Auto - 96k Miles - Silver-gray - Black Leather
    Dinan CAI + Stage 2 - Dinan Strut tower - Cross Drilled brakes
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  4. #7164
    Join Date
    Nov 2013
    Location
    Bay Area
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    2,947
    Quote Originally Posted by papa_g View Post
    That extra mpg lost is one thing. I guess what I am more concerned about is the longevity an quality of the a/c system. My understanding is the system needs to dry out a bit before turning off the engine to inhibit growth of mold and bacteria. Also could be bad for the compressor, leading to premature failure? Someone correct me if Iím wrong.


    Sent from my iPhone using Tapatalk
    Bacteria where?

    Iíve never once heard of this.

    I try to limit my AC use simply to prolong the life of the components, but use it when I need to.

    The AC system is all original in my 1995 Miata. Itís been recharged twice in 25 years. Everything still works.


    His: 2005 330 ZHP Imola Red - 1995 NA Miata
    Hers: 2004 330i ZSP
    2004 325 M56 Steel Blue Metallic - Sold
    Stephen's DD & AutoX/HPDE Build Thread
    Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
    DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
    Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM


  5. #7165
    Join Date
    Nov 2017
    Location
    Seattle
    Posts
    515
    Quote Originally Posted by stephenkirsh View Post
    Bacteria where?

    Iíve never once heard of this.

    I try to limit my AC use simply to prolong the life of the components, but use it when I need to.

    The AC system is all original in my 1995 Miata. Itís been recharged twice in 25 years. Everything still works.
    Iíve heard of mold/bacteria growing in the dryer and on the evaporator from condensation. Can be responsible for nasty smelling a/c.
    On my ZHP I had a broken compressor, and leaks in the condenser and a/c lines. Donít know why the system failed before it even hit 85k.


    Sent from my iPhone using Tapatalk
    ~ 2005 330ci ZHP Silbergrau | Black cube | Leather ~
    Current Mods: Akebono brake pads, Bilstein B4 Rear Shocks, Beisan Systems VANOS Rebuild, G.A.S. DISA O-ring, StopTech SS brake lines, Subwoofer tennis ball mod, Switchback Angel Eyes (turn signal), Zimmermann drilled rotors.
    My project thread ---> http://www.zhpmafia.com/forums/showt...into-a-reality

  6. #7166
    Join Date
    Nov 2016
    Location
    Charlotte, NC
    Posts
    2,696
    The manual suggests leaving the A/C toggled on and the climate control in auto throughout the winter as it will use it for defrosting.

    It's also good for it to cycle some over winter to keep the seals from drying out.

    The mold issue that has been brought up is when you run the a/c for a while and the vents build up condensation before you shut the car off. The only way to combat this is running the fan without a/c for the last 5-10 minutes of your trip to dry out the vents.

  7. #7167
    Join Date
    Nov 2017
    Location
    Seattle
    Posts
    515
    ^this. Well, all in all I learned something new. Going to make friends with my auto button now
    ~ 2005 330ci ZHP Silbergrau | Black cube | Leather ~
    Current Mods: Akebono brake pads, Bilstein B4 Rear Shocks, Beisan Systems VANOS Rebuild, G.A.S. DISA O-ring, StopTech SS brake lines, Subwoofer tennis ball mod, Switchback Angel Eyes (turn signal), Zimmermann drilled rotors.
    My project thread ---> http://www.zhpmafia.com/forums/showt...into-a-reality

  8. #7168
    Join Date
    Jan 1970
    Location
    Southern California
    Posts
    17,186
    If I do run a/c, I always try to run the fans w/o a/c before I shut off.

    Sent from my SM-G955U using Tapatalk
    Randeaux/Rando/John/jr - '06 Cic ZHP; Southern California
    "ZHP or not, I still like you"


    ZHP Performance Package, Cold Weather Package, Leather, Jet Black/Black/BlackCube, NAV
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    Note: Actual car no longer resembles signature picture

  9. #7169
    Quote Originally Posted by stephenkirsh View Post
    Bacteria where?

    Iíve never once heard of this.

    I try to limit my AC use simply to prolong the life of the components, but use it when I need to.

    The AC system is all original in my 1995 Miata. Itís been recharged twice in 25 years. Everything still works.
    Dang. Now you have me wondering if I get dust collecting in the system, would the fungus that causes "valley fever" be able to grow in there?
    (/checks cabin air filter . . . )

  10. #7170
    Join Date
    Nov 2014
    Location
    Portland, OR
    Posts
    9,283
    Quote Originally Posted by tristero View Post
    Dang. Now you have me wondering if I get dust collecting in the system, would the fungus that causes "valley fever" be able to grow in there?
    (/checks cabin air filter . . . )
    Mmmm coccidiodomycosis!

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