355 a/c recirc & transaxle filter cleaning ? | FerrariChat
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355 a/c recirc & transaxle filter cleaning ?

Discussion in 'Technical Q&A' started by Marcelo0131, Nov 18, 2009.

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  1. Marcelo0131

    Marcelo0131 Karting

    Oct 14, 2009
    90
    Stanton, CA.
    Full Name:
    Marcelo
    #1 Marcelo0131, Nov 18, 2009
    I've got a '99 355 f1 spider.
    First issue i don't understand is the recirculate function only works with the a/c stop buttoned depressed. As soon as i release the stop button the recirc door swings down and is longer active with the recirc. button. Is this a normal function, i hope not. I would like to have the a/c recirculate the cold air..
    Possible fixes.

    Second
    Does anyoune clean the filter in the gearboxes when doing the oil changes in them. i'm planing on doing a oil change in the near future. Need to know if i can get to it and do i need some replacement gaskets..
     
  2. ernie

    ernie Two Time F1 World Champ
    Lifetime Rossa Owner

    Nov 19, 2001
    22,620
    The Brickyard
    Full Name:
    The Bad Guy
    #2 ernie, Nov 18, 2009
    Last edited: Nov 18, 2009
    You may need to check the actuator arm inside the trunk, under the trunk lining. Check to make sure it isn't broke or stripped. You may also need to take apart your a/c ecu and clean the contacts??

    A search of the archive yielded this:

    As for cleaning the gearbox filter. The 355 gearbox is similar to the 348 gearbox. There is a plastic mesh filter that is on the inside of the gear box. The only way to get to it is to crack open the bearing side cover, on the gearbox oil pump side, and take it off. Plus the only thing that filter does is help prevent large bits from getting into the gearbox. It's nothing like an oil filter for the engine. So don't waste your time trying to "clean" it.
     
  3. Marcelo0131

    Marcelo0131 Karting

    Oct 14, 2009
    90
    Stanton, CA.
    Full Name:
    Marcelo
    #3 Marcelo0131, Nov 18, 2009
    Ok on the trans filter..
    As far as the Recirc motor, It's working as i just replaced the motor with a new one.
    The problem is when the a/c stop button is released to activate the a/c the flap will move to the non recirc position and can't be made to move with the recirc button.
    Depress the stop buton (a/c off) the recirc button becomes active again and will cause the flap to move in the wanted position.
    Help .. going to need it this summer. i know the ac will blow alot cooler with it in recirc..
    Thanks


    hen the stop button is depressed its functions
     
  4. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #4 Rifledriver, Nov 18, 2009
    The filter screen in engines and transmissions (Almost all of them have them) in cars are generally not meant to be cleaned as a service item. They really are designed to limit further damage in the event of a catastrophic failure and are meant to be cleaned during that repair or to inspect for debris in the diagnosis phase.

    Prior to the 360, Ferrari transmission filter screens required removal and at least partial disassembly of the transmission to access it. That includes your 355 so if cleaning it means that much to you, you have a big job in front of you.
     
  5. Marcelo0131

    Marcelo0131 Karting

    Oct 14, 2009
    90
    Stanton, CA.
    Full Name:
    Marcelo
    #5 Marcelo0131, Nov 18, 2009
    No not that big of a deal. Just didn't want to miss it if it was easy to get to.
    Still got this dang a/c recirc function bothering me.
     
  6. eulk328

    eulk328 F1 Rookie

    Feb 18, 2005
    2,800
    Full Name:
    F683
    #6 eulk328, Nov 18, 2009
    Last edited: Nov 18, 2009
    Did you look at the Air Conditioning section in the owner's manual? It states that if the recirculation button is released and the external temp. exceeds 70 (21C) and the internal temp. is less than 77 (25C) the A/C ECU selects recirculation. If I'm "looking" at the situation correctly, and your ambient temperature is as stated, then it seems like normal operation.

    All-in-all I don't like how the system operates. I would be quite happy with full manual control and no "climate control" and the associated complication that goes along with it.


     
  7. Marcelo0131

    Marcelo0131 Karting

    Oct 14, 2009
    90
    Stanton, CA.
    Full Name:
    Marcelo
    #7 Marcelo0131, Nov 18, 2009
    Don't have a owners manual. But that explains it i guess....
     

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