456 - Air Bag Light | Page 3 | FerrariChat

456 - Air Bag Light

Discussion in '456/550/575' started by Ros456GTA, Dec 16, 2019.

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  1. Qavion

    Qavion F1 World Champ
    Silver Subscribed

    Feb 20, 2015
    11,532
    Sydney
    Full Name:
    Ian Riddell
    E10? Did you mean 10F? Even if 10F/36F, I don't recognise any of the colours on the plugs.

    F456 Instrument Plugs
     
  2. Cribbj

    Cribbj Formula 3

  3. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
  4. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    You can see the crap that had formed in the high pressure piston area.
    No idea what that is.

    The piston was well and truly stuck.
    The last picture shows the piston, it's retained by the spring clip.

    In my case the O ring had disintegrated and each time the piston went down the bore a small sliver of rubber was produced.
    So I assume that is what jammed the piston.

    So clearly something that needs a preventive service every 10yrs or so - I would say.

    All refitted.
    Have pedal travel now, but not much pedal pressure yet - will bleed the brakes tomorrow and see.
     
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  5. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    Yes 10F
     
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  6. Qavion

    Qavion F1 World Champ
    Silver Subscribed

    Feb 20, 2015
    11,532
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    Ian Riddell
  7. Cribbj

    Cribbj Formula 3

    Ian, I couldn't say; my knowledge of the 456 is very limited.
     
  8. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    #58 Ros456GTA, Jan 3, 2020
    Last edited: Jan 3, 2020
    Accumulators
    The rear suspension items have a different part number
    Brake Pump Acc 70000504
    Suspension Acc 158693
    Stamped on the Brake Pump unit it says 210bar 0.25L.


    In regard to the suspension.... I was speaking to a friend who restores American cars but once upon a time worked as a Ferrari mech...
    He said that although the Citroen units may have the same manuf part number they are not the same as used by Ferrari.
    He said if you fit the Citroen units in your 456 you get very hard suspension.
     
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  9. Cribbj

    Cribbj Formula 3

    Ros, do you know what the differences are between what you just posted and that link I sent on what Jason posted in the Cross Reference / Interchangeable Parts thread back in 2013? As I recall, those BMW 37211132043 accumulators worked well for Jason and he was pleased with the suspension feel.
     
  10. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    38,051
    Clarksville, Tennessee
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    Terry H Phillips
    John- Those have worked well for everybody who has made the swap for the self-leveling accumulators. I think the trick is you just need to add a washer to get everything to match.
     
  11. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    Pump
    So when I finished last night, I had pedal travel once again, but no resistance in the pedal.
    Was hoping that it was air in the system and bleeding would sort it.

    Another thing, was that the pump kept on charging even after 60secs.
    So I ran it in 1min bursts with a gap, to ensure it didn't over heat.

    But even after many cycles there was still no resistance in the pedal.
    Bleed the front end
    Now the pedal went hard with little pedal movement

    Things were not looking good - was starting to doubt the repair.


    Moved the car, and let it sit.
    Went to reverse it back into the working space, and behold power assisted brakes. !

    So that was about 30mins of mucking about with it before the power assistance returned.


    New Problem
    I think the accumulator has died.
    Every time I press the brake the pump now runs for a few seconds and then stops.
    Seems to be suggesting that it was not able to store pressure.
     
  12. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    Whilst waiting for the accumulator
    Got on with fixing the cam covers...
     

    Attached Files:

  13. Cribbj

    Cribbj Formula 3

    Common problem with our 456/550/575M engines. What adhesive did you use that actually "stuck" to the covers?
     
  14. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
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    UK
    Full Name:
    Ros Tagard
    a little super glue to get it held in the correct position
    cable ties for the abs plastic
    metal staples - to tie the pieces together
    and a soldering iron with a flat tip for melting the plastic

    then went at it like you would tig welding.
     
  15. tazandjan

    tazandjan Three Time F1 World Champ
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    Jul 19, 2008
    38,051
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    Terry H Phillips
    Cambelt covers? Cam covers are aluminum.
     
  16. Ros456GTA

    Ros456GTA Karting

    Dec 16, 2019
    68
    UK
    Full Name:
    Ros Tagard
    referring to the plastic covers on the front of the engine.
     
  17. Renars

    Renars Rookie

    Sep 12, 2019
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    Renars Plinte
    Hello to everyone,
    I have Ferrari 456M GTA, 1999 year with OBD2 diagnostic port.
    I have a problem with airbag ligt on the dash.
    It came one after I removed the interiot to redone it (also stering wheel and dashboard) and I had to turn on the power ON for a while.
    When the interior was folded back, the airbag lamp came on, off course. The problem is that I dont have a proper scan tool to remoove the error.
    I tried Launch diagnostic and some others, but I can reed only the engine codes, nothing more.
    I also dont have a Ferrari dealer in my contry so that is a problem for me and I have no idea how to solve this yet.
    I saw there is some Ferrari scan tools on ebay for arround 200 eur, but Im not shure the will help me in this situation.
    Maybe there is any other way how to clear the AIRBAG error code.

    Thanks in advance!
     
  18. yelcab

    yelcab F1 World Champ
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    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    You need someone with a Factory Ferrari SD tool or a Leonardo Tool. The airbag ECU of that era does not connect to the CAN bus and therefore cannot be seen by any scanner connected to just the OBD2 connector.

    It is possible (not sure) that you can connect the Launch scanner to a custom connector that talks to the airbag controller and read / clear the error that way.

    There is always the piece of black tape over the red airbag light.
     
  19. Renars

    Renars Rookie

    Sep 12, 2019
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    Renars Plinte
    Ok. Thank you. The black tape is not an option for me ;)
    I did a lot of job to restore the car and this is basicaly the last thing to do.
    But how the Ferrari SD of Leonardo scanners are connected to the car? If they are using OBDII port to read all the cars equipment, then you just need the scanner
    that can access these control safety and comfort units? There is a guy in England - Ratarossa. Maybe you know. Youtuber, and he was using some cheep scanner to reset the faults on his 456.
    I need to find a way how to reset the AirBag light :) The last thing to do.....

    Image Unavailable, Please Login
     
  20. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    38,051
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    The WSM says to diagnose the airbag system with an SD-1 through the OBDII connector. The SD2 and SD3 both have an SD1 emulator mode, but whether any of the cheaper scanners can do this task depends on what they copied from real diagnostic tools. Earlier OBDII Ferraris relied on a combination of SD tools and serial connectors. Should be an expert out there who knows.
     
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  21. Renars

    Renars Rookie

    Sep 12, 2019
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    Renars Plinte
    Thank you for your answer. I guess I will try to buy this cheep scanner and if it fails to clear this error, I will send it back.


    .
     

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