575 Shock Control Module | FerrariChat

575 Shock Control Module

Discussion in '456/550/575' started by cmaxcliff, Jan 7, 2024.

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  1. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    Being new to Ferrari ownership, 2 years, I continue to learn. My car had the 201674 module and after reading threads here I started to look for a stiffer version. PA roads have many peaks and dips, not good for floating suspension. I found one from a salvage car used on eBay but that was junk and was returned. I called the local Ferrari dealer and they quoted $6000 plus. I waited some months and look again at the aftermarket parts suppliers and saw that Europarts had them(not really) for 1700 pounds. I emailed to confirm that they had it on the shelf. They did not but they said that they just confirmed with Ferrari that it was ready to ship from them. I ordered it on the Europarts website. I then received an email from Europarts stating that I needed to pay an additional 1700 pounds as a "surcharge" which is better described in the US parts world as a core charge. Core charge I understand but surcharge didn't sound good, doubling the price. The 205619 they sold me is listed as new and it certainly looks new with no sign that it was ever installed before. Odd that a new part has a core charge but I guess that is what Ferrari does in this case. Europarts shipped the part not long after and all was good, until the US Customs Homeland Security decided that I was an "Importer" with a capital I and demanded either an EIN or my Social Security number be provided to FedEx. I am not usually a person that gives out my SSN to a potentially nonsecure office. Ultimately I had to to get the part. I am probably on all the terror alert lists now. I think Europarts did a good job and I just need to get used to the Ferrari parts world.

    The good news is that the 205619 is a major improvement. Test driving it in the snow was "fun" but even then the difference was dramatic. I own lightweight sports cars and I don't care to make the 575 into a track day go kart but I didn't like it cresting hills like a Buick either.

    Next project: my very experienced Ferrari mechanic says that my AC is fine but I doubt that the anemic output of mine is ok. How good is the AC in your 575?
     
    Qavion likes this.
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    Not much difference between 201674 and 205619. My 201674 was even labeled FHP.
     
  3. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    My car has the Fiorano suspension and came with the 201674. Testing in the snow(dusting really) is more than a little bit limiting but I was able to crest some rises and hit some dips at enough speed that would previously make the car float, I think. Wednesday is supposed to be clear and warm so I will thrash it a little on dry roads.

    I chose the 205619 based on your posts mentioning reduced float which was my only complaint. PA roads are crude compared to most states and what you do not want is harshness but neither do you want floating while cresting blind hills. We will see.
     
  4. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    My posts compared 205618 and 205619 to very early shock ECUs like 183960. Neither 205618 nor 205619 was ever fitted to production 575Ms. They just incorporated most of what was learned in the evolution of the shock ECUs before AN 52556.

    You sure you had 201674 and not 201673? My FHP 575M was one of the last half dozen built before AN 52556 (AN 52428) and came with 201673. 201674 was originally fitted to UK 575Ms.
     

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  5. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    You are of course correct, I had the 201673. My car is AN 51620 and has Fiorano suspension.

    Your previous post:
    "Bruce- Yup, you need shock ECU 201674, 205618, or 205619. All should fix the float. Even though the parts catalog says 201674 and 205619 are for RHD, it makes no difference and both work for LHD or RHD. Mine has 201674 and is LHD. Five minute job for your tech to change it out under the passenger side cheek panel carpet."
    is correct based on the short test drive I have done. I see why you questioned me saying that there was a difference 201674 vs 205619. Sorry for the confusion.
     
  6. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    Cliff- Makes perfect sense. Those three shock ECUs are all an improvement on 201673.
     
  7. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
  8. dsd

    dsd F1 Rookie
    Owner Silver Subscribed

    Nov 19, 2006
    4,262
    Northern Virginia
    My AC blows very cold. It just has weak fans. When I crank the blower up all the way cooling is great (this is in DC where it’s hot and humid). However, at full tilt the AC drowns out the engine— it is loud.
     
  9. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    Thank you.
     
  10. wrgray68

    wrgray68 Karting
    Rossa Subscribed

    Sep 5, 2014
    195
    Kansas
    Full Name:
    Walker Gray
    I've heard multiple people mention the core charge from Europarts. Do you send them your old part prior to them releasing the new part? or post delivery?
     
  11. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    They return the core charge amount when they receive your old part back(hopefully). I mailed mine Monday so I do expect a credit when they get it.
     
    wrgray68 likes this.
  12. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    Ferrari apparently does reflash the shock ECUs (or has someone do it for them). My 201674 was reflashed by the factory from 197211.
     
  13. cmaxcliff

    cmaxcliff Rookie

    Jul 5, 2021
    36
    Chester Springs PA
    Full Name:
    Cliff Murray
    The new one that I received had never been installed. The area under the mounting nuts was absolutely virgin. It makes you wonder what is being done with the cores they are collecting since I have not seen a source for rebuilt units.
     
  14. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    They probably would not bother reflashing them until they ran out of stock or were close to it.
     
  15. wrgray68

    wrgray68 Karting
    Rossa Subscribed

    Sep 5, 2014
    195
    Kansas
    Full Name:
    Walker Gray
    I'll be interested to hear your thoughts on the swap after you are able to drive it more. This is a change I'm considering for my car. I have the older 183960 ECU.
     
  16. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    Walker- That swap will make a very large difference from 183960. Early 575Ms with FHP were even delivered with 183960, but the heavier springs and rear anti-roll bar helped somewhat. Still worth upgrading, even from 201673.
     
  17. wrgray68

    wrgray68 Karting
    Rossa Subscribed

    Sep 5, 2014
    195
    Kansas
    Full Name:
    Walker Gray
    Yep, the MSW sway bar is something else I'm considering. I still need to replace the rear shocks so I'll do it all at once. I did confirm that all 4 of my shocks were leaking. Again, that was surprising considering the reputation those shocks had as being pretty sturdy.
     
  18. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    13,956
    MO
    Full Name:
    Omar
    Odd they charged a core charge. I bought HGTC ECU 210578 for my parts achieve and they didn't charge me a core charge I am aware of? I bought through ferrparts if that matters.

    My FHP car came with 202954 and seems fine (though I am running extremely stiff semi-race tires so that might further mitigate some of float) so I never installed 210578.

    In truth, I wish I could buy the old 550 Bilstein shock ECUs, core charge or not. :(
     
  19. Ffre92

    Ffre92 Formula Junior

    May 26, 2014
    691
    NY
    When I was shopping for 205619 in 2019, some sites wanted core returned. I passed and eventually purchased from eurospares without need for core return
     
  20. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,145
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    All the post AN 52556 shock ECUs work fine. Plus, they have an input from the steering position sensor that gives lead into turn stiffening much quicker than the lagging accelerometers. They incorporated what was learned on the earlier ECUs with customers doing the OT&E. No difference between LHD and RHD in the parts catalogs, either, for the late shock ECUs.
     
  21. Timmo

    Timmo Formula Junior

    Aug 26, 2017
    674
    Continental Europe
    How does the original 175949 unit found on 550s with FHP compare with all these updated units?
     
  22. Auraraptor

    Auraraptor F1 World Champ
    Lifetime Rossa Owner

    Sep 25, 2002
    13,956
    MO
    Full Name:
    Omar
    550 system is completely different design with bilsteins and never suffered from the float found on early 575s. As such both 164646 and 175949 (FHP) are quite good.

    I am trying to source 175949 for a project if you know anyone with one please let me know….
     
  23. Timmo

    Timmo Formula Junior

    Aug 26, 2017
    674
    Continental Europe
    Yes sorry, different technology between 550 and 575.

    Myself has a 175949 on his car but he am not selling, sorry.
     

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