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+--- Thread: EGS / Valve Body virginize question (/showthread.php?tid=9101)
EGS / Valve Body virginize question - Blinddz - 07-28-2025
Hey everyone,
I’m swapping out the transmission on my 2017 F30 340i (B58) and picked up a donor 8HP from a 2016 model. The original unit had issues clutch B/E faults and erratic shift behavior so I’m doing the full replacement.
My plan is to reuse the valve body/mechatronic from the 2016 box, but I’ll need to virginize the EGS (TCM) before flashing/coding it to my car.
Has anyone done this successfully on the F3x chassis?
Specifically:
- Can the 2016 EGS be virginized via Tool3, Ista-p or esys, or do I need to clone the original one?
- Once virgin, is E-Sys VO coding enough to load the correct CAFD and get it accepted by the DME?
- Do I need to match firmware versions or flash via ISTA/P afterward?
Any insights, steps, or gotchas from those who’ve done similar "retrofits" would be super appreciated.
Thanks in advance ?
RE: EGS / Valve Body virginize question - Cro - 07-28-2025
The egs isn can be reset, or if you have the option to clone it its also on the table
afterwards a flash and code are okay to do
RE: EGS / Valve Body virginize question - Memedalji_ - 07-29-2025
(07-28-2025, 02:34 PM)Blinddz Wrote: Hey everyone,
I’m swapping out the transmission on my 2017 F30 340i (B58) and picked up a donor 8HP from a 2016 model. The original unit had issues clutch B/E faults and erratic shift behavior so I’m doing the full replacement.
My plan is to reuse the valve body/mechatronic from the 2016 box, but I’ll need to virginize the EGS (TCM) before flashing/coding it to my car.
Has anyone done this successfully on the F3x chassis?
Specifically:
- Can the 2016 EGS be virginized via Tool3, Ista-p or esys, or do I need to clone the original one?
- Once virgin, is E-Sys VO coding enough to load the correct CAFD and get it accepted by the DME?
- Do I need to match firmware versions or flash via ISTA/P afterward?
Any insights, steps, or gotchas from those who’ve done similar "retrofits" would be super appreciated.
Thanks in advance ?
I can help reset isn remotely