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+---- Thread: ZF8HP45 values help (/showthread.php?tid=57391)
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ZF8HP45 values help - sqorpius - 03-10-2019
Hi all,
Got a question regarding the filling pressure and rapid filling time for the ZF specialists out here. I've got the following values read out from my ZF8HP45 tranny, connected to a N55 engine (435i F36), and was wondering if they still are within ZF margins. Or anything odds shows up, let me know! Many thanks in advance.
Filling pressure, Clutch A -167.00 MBAR
Filling pressure, Clutch B -120.00 MBAR
Filling pressure, Clutch C 39.00 MBAR
Filling pressure, Clutch D 108.00 MBAR
Filling pressure, Clutch E 146.00 MBAR
Rapid filling time, Clutch A 29.00 MS
Rapid filling time, Clutch B 33.00 MS
Rapid filling time, Clutch C 16.00 MS
Rapid filling time, Clutch D 5.00 MS
Rapid filling time, Clutch E 26.00 MS
Many thanks!
RE: ZF8HP45 values help - ferbmw - 03-10-2019
Here you have some technical info I got some time ago from ZF. Hope this helps
RE: ZF8HP45 values help - sqorpius - 03-10-2019
Thanks! But it seems the values inside the PDF only show for the 6HP ZF, not 8HP, or are they the same?
RE: ZF8HP45 values help - ferbmw - 03-10-2019
(03-10-2019, 16:06 PM)sqorpius Wrote: Thanks! But it seems the values inside the PDF only show for the 6HP ZF, not 8HP, or are they the same?
I used these values after a gearbox reset of adapation values for my F30 with ZF 8HP. It worked.
RE: ZF8HP45 values help - Alexandru.k_24 - 03-10-2019
(03-10-2019, 16:15 PM)ferbmw Wrote:What do you mean by "i used these values" ? The adaptation values are some read only values, that are directly affected by the wear of the transmission / atf.(03-10-2019, 16:06 PM)sqorpius Wrote: Thanks! But it seems the values inside the PDF only show for the 6HP ZF, not 8HP, or are they the same?
I used these values after a gearbox reset of adapation values for my F30 with ZF 8HP. It worked.
RE: ZF8HP45 values help - Enabled - 03-10-2019
If you read them with ISTA, generally ISTA tells you the ranges.
RE: ZF8HP45 values help - weby - 04-10-2019
Rapid filling time
under 10ms = perfect
10 - 20ms = good / ok
20 - 30 ms = warning
30-50 ms = bad
50 ms = dead!
did you use the lastest EGS software?
RE: ZF8HP45 values help - sqorpius - 04-10-2019
Nope, car is still on original i-level. Do you suggest doing i-level update?
(04-10-2019, 08:52 AM)weby Wrote: Rapid filling time
under 10ms = perfect
10 - 20ms = good / ok
20 - 30 ms = warning
30-50 ms = bad
50 ms = dead!
did you use the lastest EGS software?
RE: ZF8HP45 values help - ferbmw - 04-10-2019
(03-10-2019, 19:15 PM)Alexandru.k_24 Wrote:(03-10-2019, 16:15 PM)ferbmw Wrote:What do you mean by "i used these values" ? The adaptation values are some read only values, that are directly affected by the wear of the transmission / atf.(03-10-2019, 16:06 PM)sqorpius Wrote: Thanks! But it seems the values inside the PDF only show for the 6HP ZF, not 8HP, or are they the same?
I used these values after a gearbox reset of adapation values for my F30 with ZF 8HP. It worked.
used as a reference
RE: ZF8HP45 values help - florinu - 04-10-2019
you can reset the adaption via ISTA+ . Also if you didn`t have te latest version of EGS software , you can update it with Winkfp or ISTA-P . The easy mode is with ISTA-P