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FF PTU Design Flaw.

Discussion in 'FF/GTC4Lusso/F12/812S' started by officeline, Aug 17, 2019.

  1. baguns

    baguns Karting

    Sep 19, 2012
    225
    Glendora, CA
    Got the car 6 months ago and I got 2 years warranty. It’s been such an awesome car. If it is a serious ptu issue and it needs to be replaced hopefully it won’t take too long


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  2. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    Def. id hope it is the ptu! Replace the sucker


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  3. baguns

    baguns Karting

    Sep 19, 2012
    225
    Glendora, CA
    For those of you that had the 4wd atf low oil pressure, manitteno failure messages, did you notice any oil leak?


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  4. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    nope never had any leaks on mine
     
  5. FFantastic

    FFantastic Formula Junior
    Silver Subscribed

    Mar 23, 2015
    759
    UK Riviera
    I know you can eliminate the 4 wheel steering by putting the car in 'snow chain mode' via the setup and it doesn't effect the driving mode or power output........for what it's worth.
     
  6. baguns

    baguns Karting

    Sep 19, 2012
    225
    Glendora, CA
    Dealer diagnosed the error codes and basically there’s a braided line that was faulty and needed to be replaced (which also caused the small leak). Doesn’t appear to be a PTU issue. I’ll pick up the car in a few days and will get more details.


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  7. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    Ha - now that you mention it P1 In stamford found the same thing in my car / the wire was squashed or something- that cured the 4wd error that was coming up on the screen. Hadnt u mentioned it i dont think i wld have remembered

    I never had a leak though
     
  8. baguns

    baguns Karting

    Sep 19, 2012
    225
    Glendora, CA
    Warning light and small leak due to “high pressure steel braided line from PTU pump to PTU valve ruptured. Replaced high pressure pipe kit. “

    About $1800 for labor and parts, covered under warranty so all is good :)


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  9. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    from my service record:
    "REPLACE CRUSHED VAC HOSES UNDER INTAKE MANIFOLD, REPLACE SECONDARY AIR HOSES."
     
  10. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    from my service record:
    "REPLACE CRUSHED VAC HOSES UNDER INTAKE MANIFOLD, REPLACE SECONDARY AIR HOSES."
     
  11. uhn2000

    uhn2000 Formula 3

    Oct 15, 2011
    1,687
    Toronto
    Full Name:
    Joe
    Yeah lets not panic on this, everyone I know that has an FF (2 peeps) and Lusso12 (5 peeps) have had zero PTU issues. I have personally also put 22,000kms on my previous FF and about 14,000kms in 2xLusso12s. Hopefully this is not happening everywhere and Ferrari has figured out a longer term fix for those affected.
     
    timjen88, otakki, FFantastic and 2 others like this.
  12. baguns

    baguns Karting

    Sep 19, 2012
    225
    Glendora, CA
    Sounds like the problems that we had are different, though threw the same error code? I’m no wrench, but does the ptu need a vacuum/air hose?


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  13. ttforcefed

    ttforcefed F1 World Champ
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    Aug 22, 2002
    11,590
    yes most likely different... So i spoke to my independent:
    “The wire was shorted to ground, which causes an error, and anything on the network for the engine ecu, starts to wig out.”

    So if this happens it gives the same error as a bad ptu - 4wd or wet mode error. Definitely worth checking before concluding the ptu needs replacing.
     
  14. SE16

    SE16 Karting

    Apr 13, 2007
    85
    UAE and London
  15. ttforcefed

    ttforcefed F1 World Champ
    Rossa Subscribed

    Aug 22, 2002
    11,590
    I wldnt worry about it - low probability it happens. Whats the price on the kit?
     
  16. gilly6993

    gilly6993 Formula 3

    Aug 20, 2009
    1,982
    Longmeadow, MA
    Full Name:
    Eric
    $20K+


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  17. Jas

    Jas Formula Junior

    Mar 2, 2005
    988
    Kent, UK
    Full Name:
    Jas

    Really is that it? Only 200 globally?

    How do Ferrari make money on such low volumes?
     
  18. Jas

    Jas Formula Junior

    Mar 2, 2005
    988
    Kent, UK
    Full Name:
    Jas

    No reason to use PTU in an SUV, when the whole reason Ferrari designed this complex 4WD system was so the engine could be installed low in the car.

    A conventional 4WD system makes more sense in an SUV anyway.
     
  19. [gTr]

    [gTr] Formula Junior

    Mar 11, 2008
    577
    London, U.K.
    I too agree that PTU will not reappear in any future Ferrari. I believe they will adapt the 4 wheel drive system from the SF90S for the FUV.
     
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  20. Jas

    Jas Formula Junior

    Mar 2, 2005
    988
    Kent, UK
    Full Name:
    Jas
    Yes, and I find it odd that Ferrari intend to do that - if that is *all* they do. Because then it would not be a proper full time 4WD, on this SUV. Perhaps they will have traditional full time 4WD, plus the SF90 system on top. There is no technical reason that can't be done. (Super heavy though.)
     
  21. Caeruleus11

    Caeruleus11 F1 Veteran
    Rossa Subscribed

    Jun 11, 2013
    9,100
    My guess is the SUV will use some form of hybrid like we see with SF90. They might have a new technical innovation that allows the system to function at higher speeds (it has to disengage around 125 MPH on SF90). On the other hand, if you're doing 120+ MPH, I don't know how useful the AWD system would be.
     
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  22. Elasto

    Elasto Karting

    Aug 27, 2014
    73
    Vienna, AUSTRIA
    Full Name:
    Andreas
    If you are doing 200k on the German Autobahn in the rain, you will be glad to have a full time AWD.
     
  23. REALZEUS

    REALZEUS F1 Veteran

    Feb 16, 2011
    5,713
    Bournemouth, UK
    At those speeds the AWD system doesn't make a difference. The difference is under hard acceleration.
     
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  24. Alimal

    Alimal Rookie

    Jun 24, 2019
    3
    Full Name:
    Alonzo Ali Nassiff
    So I sent my ff up to the dealership with a couple of error codes (manettino failure, 4wd failure etc....). This was after placimg a new battery to no effect. So now they say that the PTU needs to be replaced. Car has 21k miles on it. Has anyone else gone through this?
     
    yamashek likes this.

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