[Ck00]

Originally Posted by KoenG

Aah! But here is a perfect explanation, and it's not the driver!

The M5 carried the ZF8HP75 until september 2019. As from that date, it received the exact ZF8HP76 like the M8 did from day 1. The 76 has stronger/faster solenoids to shift more briskly under high strain and can deal with 900Nms. The 75 is just on the verge in launch in 1st in the M5... Look at Alpina, the B5s has more torque than the M5 and was never equipped with the 75, only 76 transmissions there! So as from 09/19, this issue was solved.

This transmission update is really interesting. Do you have the article or info to share. Okay to pm if you like. Loved to learn more about the differences. Thanks.

[KoenG]

Originally Posted by Ck00

This transmission update is really interesting. Do you have the article or info to share. Okay to pm if you like. Loved to learn more about the differences. Thanks.

I've learned this on the M8 forum, where the discussion point was whether it was worth the extra cash over the M5? Some were affirmative about this because it integrates "better components"!? The only thing they could come up with is the 8HP76 versus the 8HP75. The M5 was equipped with it later because ZF couldn't deliver the volumes and they fitted it in the M8 as from the start since it was freshly available then.

From BMW I didn't find anything. All the glossy paper brochures you can download from ZF describing the 8HP don't mention the 76 variant (publication date before 76 release date). Most info is coming from Alpina, which integrated it for the B5/7:

Durch intensive Entwicklungsarbeit und viele tausende Testkilometer konnten die Komfort- und Dynamikeigenschaften dieser neuen Getriebegeneration nochmals gesteigert werden. Kombiniert mit einer explizit auf das hohe Drehmoment des Antriebs konzipierten Wandlerüberbrückungskupplung, verstärkten Planetenradsätzen sowie einer optimierten inneren Getriebekühlung, konnten im Sport Modus hochdynamische Schaltvorgänge ohne Momentenrücknahme umgesetzt werden.

They state that the 76 is optimised to deal with the high torque (800Nm), and this has its effect on the torque convertor, the enforced planet gear wheels, optimised cooling. In another article (when I'am not mistaken also from Alpina), they stressed the importance of the stronger solenoids that effectively lock the sun/planet gear wheels to switch between gears. Missing the gear switch is what you could see on CarWOW when Joe Achilles got frustrated.

[Higgs Boson]

Well, we used to put Corvette solenoids on trucks back in the day to make them shift better....I am sure BMW probably puts their inside the transmission though. :-(

[Jocko78]

Not enough for me to change. Do like the new rear lights and in the process of getting them installed, the rest doesn't matter to me.

[Laki021]

LCI also has a different suspension. It shares the suspension with the M8 GC.

Not sure how much of a difference does it make.

[houstonT]

Very interesting, my build date is 10/2019...how do I confirm I have the 76 and not the 75?
Peter

Originally Posted by KoenG

I've learned this on the M8 forum, where the discussion point was whether it was worth the extra cash over the M5? Some were affirmative about this because it integrates "better components"!? The only thing they could come up with is the 8HP76 versus the 8HP75. The M5 was equipped with it later because ZF couldn't deliver the volumes and they fitted it in the M8 as from the start since it was freshly available then.

From BMW I didn't find anything. All the glossy paper brochures you can download from ZF describing the 8HP don't mention the 76 variant (publication date before 76 release date). Most info is coming from Alpina, which integrated it for the B5/7:

Durch intensive Entwicklungsarbeit und viele tausende Testkilometer konnten die Komfort- und Dynamikeigenschaften dieser neuen Getriebegeneration nochmals gesteigert werden. Kombiniert mit einer explizit auf das hohe Drehmoment des Antriebs konzipierten Wandlerüberbrückungskupplung, verstärkten Planetenradsätzen sowie einer optimierten inneren Getriebekühlung, konnten im Sport Modus hochdynamische Schaltvorgänge ohne Momentenrücknahme umgesetzt werden.

They state that the 76 is optimised to deal with the high torque (800Nm), and this has its effect on the torque convertor, the enforced planet gear wheels, optimised cooling. In another article (when I'am not mistaken also from Alpina), they stressed the importance of the stronger solenoids that effectively lock the sun/planet gear wheels to switch between gears. Missing the gear switch is what you could see on CarWOW when Joe Achilles got frustrated.

[KoenG]

Originally Posted by houstonT

Very interesting, my build date is 10/2019...how do I confirm I have the 76 and not the 75?
Peter

I looked up the gear and final drive ratios but they are identical. This was something you could check on your conformity statement. No such luck.

Maybe you best ask your dealer?