F430 Important E-DIFF information - Page 2 - Ferrari Life
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post #21 of 29 Old 12-05-2019, 06:56 AM Thread Starter
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4. Check minimum and maximum tank fluid levels

4. Check minimum and maximum tank fluid levels

The minimum fluid level inside the tank is reached when the hydraulic system is fully pressurized while the maximum level is reached when the system is entirely depressurized. Temperature has pretty much no effect on these fluid levels. At maximum pressure of about 52/53 bar, the fluid should be a couple of mm above the internal tank white disk. Use the Smart eMT ECU to build up the pressure at 52/53 bar and check the minimum level inside the tank which should be right above the white disk inside the tank. Depressurize the system by applying 1A current ON/OFF pulses on the control valve as explained before. When the pressure drops below 42 bar, start checking the fluid level inside the tank. If the fluid reaches already the top of the tank while the pressure is still above 0 bar, remove the excess of fluid. With the system been totally depressurized, the level of fluid should not overflow and should be leveled right below the tank neck. If you had to remove or add fluid in the tank, redo entirely this procedure up to the point you obtain the correct minimum and maximum levels.

Last but not least, I recommended already since several years many workshops I work for to use a real hydraulic fluid like the Liqui Moly LM1127 instead of a ATF fluid. This makes a big performance difference on the entire hydraulic system: https://www.scuding.com/Shop/en/cont...ecommendations

Minimum fluid level at maximum pressure:
Name:  Scud Ing Swiss Max pressure fluid level.jpg
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Maximum fluid level at 0 bar pressure:
Name:  Scud Ing Swiss 0 pressure fluid level.jpg
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Last edited by StefVan; 12-05-2019 at 07:03 AM.
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post #22 of 29 Old 12-08-2019, 09:17 AM
 
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Hello Stef,


thank you for sharing your knowledge with us. I will order a new valve and replace it, the fluid was already changed to LM.
What is your experience with the valves, are they reliable once new ? I got a information from a 430 owner who got 3 new valves mounted at a offical F-Dealer during the same day once they found one which was working. Maybe they used the wrong (=old) torque spec. for mounting ?
Should the valve be put into hydraulik fluid for a minute before mounting to make sure there is at least a minimum lubrication during the first actuation ?


Best regards,


Bruno
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post #23 of 29 Old 12-09-2019, 12:16 PM Thread Starter
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Hello Bruno,
You're very welcome. It's very good you're using now LM1127.

Usually, the new E-DIFF control valves are reliable, I never had a new failing one in my hands. No doubt that if they aren't tighten correctly, the internal actuator will fail. 9NM is the absolute maximum, and even at 7NM, they won't leak or cause pressure loss. Normally, a new E-DIFF valve comes in a sealed package which is lubricated inside. So your new valve should already come completely lubricated and ready to be installed. If it's not the case, I would not accept the part.

Best wishes,
Stef
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post #24 of 29 Old 02-06-2020, 09:32 AM Thread Starter
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Since the above E-DIFF posts, several workshops faced the same E-DIFF issues and asked me if I could develop a specific E-DIFF solenoid valve tester which can be easily and safely powered from a 12VDC source like a battery. After several prototypes and many tests made, the final product and firmware are now close to be released. As already many workshops are using the Smart eMT F1 Relay ECU - Advanced V3 to diagnose and maintain the F1 system, this eMT ECU goes very well together with the new E-DIFF tester tool to accomplish such maintenance tasks by setting the eMT ECU in the Maintenance or Pump Off modes. In these modes, with a simple press on the Monitoring module button, you can directly activate the pump to build up the hydraulic pressure at the desired level.

The new E-DIFF tester tool will allow to make the most important maintenance tasks without needing an expensive diagnostic tool or to be used together with a simple diagnostic tool like the Launch X431 PROS MINI just to visualize the hydraulic pressure:

  • Check hydraulic pressure drops
  • E-DIFF bleed without needing to start the engine
  • New E-DIFF valve break-in procedure
  • Fast hydraulic system depressurization
  • Expel trapped air bubbles in the E-DIFF back in the return hose towards the fluid tank
  • Check of minimum and maximum fluid tank levels
  • 10 steps progressive E-DIFF lock force checks with the corresponding hydraulic pressure drop checks

Stay tuned
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post #25 of 29 Old 02-10-2020, 07:17 AM
 
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Wow, great info. I have an 07 F430 and recently I'm getting flashing ediff, suspension and the magneto is stuck . after driving it a while it goes away. pls advise. tx
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post #26 of 29 Old 02-10-2020, 11:22 PM Thread Starter
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Thank you, what E-DIFF error codes do you have? How long is your pump priming?

Quote:
Originally Posted by mkpt358 View Post
Wow, great info. I have an 07 F430 and recently I'm getting flashing ediff, suspension and the magneto is stuck . after driving it a while it goes away. pls advise. tx
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post #27 of 29 Old Yesterday, 05:26 AM
 
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Can someone confirm if this is still true. Is getting the genuine Ferrari F430 accumulator equivalent to getting the FIAT part (which can only be ordered from Europe it seems)?

The three part numbers I have seen are:

1. Part# 247346 on algarferrari.com
https://algarferrari.com/store/accumulator-34219
2. Part# 58552368 (with ?requirement for 58552368-s Union Kit) from Ricambi
https://www.ricambiamerica.com/car-d...or-bottle.html
3. Fiat Part# 71751195 from Ebay in Europe (no USA sellers apparently)
https://tinyurl.com/t87bcxb

I am getting confused as to which is the right one to buy. Any help would be appreciated.

Thanks.
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post #28 of 29 Old Yesterday, 11:52 AM Thread Starter
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They are all the same. See my recommendations: https://www.scuding.com/Shop/en/cont...ecommendations

Just take the Fiat/Alfa Romeo/Lancia pressure accumulator #0071751195-001, that's what your F430 needs, 100% same specs 0.35l/92bar. I can't count anymore how many owners I helped with this but I never heard of 1 single issue (and there is no reason why there should be one).
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post #29 of 29 Old Yesterday, 01:20 PM
 
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Quote:
Originally Posted by StefVan View Post
They are all the same. See my recommendations: https://www.scuding.com/Shop/en/cont...ecommendations



Just take the Fiat/Alfa Romeo/Lancia pressure accumulator #0071751195-001, that's what your F430 needs, 100% same specs 0.35l/92bar. I can't count anymore how many owners I helped with this but I never heard of 1 single issue (and there is no reason why there should be one).
Iirc..the one for bmw is the same as well

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