X3M Transmission Model?

GT500R · 02-29-2020, 09:15 AM

Anyone know what the actual model is of the ZF transmission in the X3M?

ZF8HP75? 1st gen? 2nd gen?

Thanks.

AlexFL · 02-29-2020, 09:22 AM

It’s called “ZF M Steptronic” I think.

https://www.automobile-catalog.com/auta_details1.php

GT500R · 02-29-2020, 09:47 AM

Quote:

Originally Posted by AlexFL

It’s called “ZF M Steptronic” I think.

https://www.automobile-catalog.com/auta_details1.php

Yes I know they all are but I’m looking for the model number -

https://en.m.wikipedia.org/wiki/ZF_8HP_transmission

AlexFL · 02-29-2020, 09:58 AM

Quote:

Originally Posted by GT500R

Yes I know they all are but I’m looking for the model number -

https://en.m.wikipedia.org/wiki/ZF_8HP_transmission

Not all of them. The M40i one is called ZF 8HP50 Sport.

https://www.automobile-catalog.com/auta_details1.php

GT500R · 02-29-2020, 10:08 AM

Quote:

Originally Posted by AlexFL

Not all of them. The M40i one is called ZF 8HP50 Sport.

https://www.automobile-catalog.com/auta_details1.php

Steptronic is just another name/term used for a transmission with a torque converter, that's across the models, its the 8HP50 or 8HP70 or 8HP75 that I am trying to figure out for the X3M

AlexFL · 02-29-2020, 10:24 AM

From what I understood, M model gear boxes don’t follow these numbers...

Wills2 · 02-29-2020, 10:54 AM

It uses the same gearbox version as the M5 which I believe is the ZF8HP75 gen2.

A quick Google on real OEM give the part number as GA8HP75Z output all-wheel drive, it's shared with quite a few higher output BMWs 750/F chassis X5M etc....

GT500R · 02-29-2020, 02:04 PM

Quote:

Originally Posted by AlexFL

From what I understood, M model gear boxes don’t follow these numbers...

Every car equipped with ZF has this.

Quote:

Originally Posted by Wills2

It uses the same gearbox version as the M5 which I believe is the ZF8HP75 gen2.

A quick Google on real OEM give the part number as GA8HP75Z output all-wheel drive, it's shared with quite a few higher output BMWs 750/F chassis X5M etc....

Okay prob gen 2 then, thank you sir!

AlexFL · 02-29-2020, 02:21 PM

Quote:

Originally Posted by Wills2

It uses the same gearbox version as the M5 which I believe is the ZF8HP75 gen2.

A quick Google on real OEM give the part number as GA8HP75Z output all-wheel drive, it's shared with quite a few higher output BMWs 750/F chassis X5M etc....

That’s good to know. Therefore, the drivetrain won’t be the limiting factor in performance tuning.

Wills2 · 02-29-2020, 03:10 PM

I have to caveat my post as it could be read the wrong way.

It's my understanding that the X3M uses the same gearbox as the F90 M5, I checked realoem to see what that gearbox is (confirmation of ZF8HP75) but realoem doesn't have X3M listed so I'm still going on what I've read which leads me to believe they use the same gearbox, my 740d xdrive also uses this gearbox basically there isn't another ZF8 that can handle the torque as the next step down is the 50 version the next step up the 90.

Hope that makes sense.

BOGX4M · 02-29-2020, 03:44 PM

Here is the technical manual:
https://x3.xbimmers.com/forums/showthread.php?t=1623283

”With the M8HP76 M Sport Steptronic transmission, which is based on the BMW AG 8HPTU2 gearbox,...”

BMWZ4 · 02-29-2020, 04:00 PM

Found this added info:

Transmission type designation:

GA8HP50Z: G01 X3M40i & G02 X4M40i

M8HP76Z: F97 X3M & F98 X4M

AlexFL · 02-29-2020, 05:57 PM

Quote:

Originally Posted by BMWZ4

Found this added info:

Transmission type designation:

GA8HP50Z: G01 X3M40i & G02 X4M40i

M8HP76Z: F97 X3M & F98 X4M

Indeed, I also found this...

JensM · 03-01-2020, 12:17 AM

Quote:

Originally Posted by Wills2

I have to caveat my post as it could be read the wrong way.

It's my understanding that the X3M uses the same gearbox as the F90 M5, I checked realoem to see what that gearbox is (confirmation of ZF8HP75) but realoem doesn't have X3M listed so I'm still going on what I've read which leads me to believe they use the same gearbox, my 740d xdrive also uses this gearbox basically there isn't another ZF8 that can handle the torque as the next step down is the 50 version the next step up the 90.

Hope that makes sense.

Thanks for this. So it seems like the X3/4M use the xx75/76 version of the gearbox. You also state the 740D use same. I have the X4M40D - must assume it use same? I have not been able to find and documentation. I ask as I plan to installing a RaceChip which bring torque from 680nm to 780, and want to check if risk of and problems. Can you confirm? Thanks

Wills2 · 03-01-2020, 03:57 AM

Quote:

Originally Posted by JensM

Thanks for this. So it seems like the X3/4M use the xx75/76 version of the gearbox. You also state the 740D use same. I have the X4M40D - must assume it use same? I have not been able to find and documentation. I ask as I plan to installing a RaceChip which bring torque from 680nm to 780, and want to check if risk of and problems. Can you confirm? Thanks

This is the link below to realoem for the X3M40d, they state it does:

https://www.realoem.com/bmw/enUS/sho...diagId=24_1845

sd306 · 06-29-2020, 09:39 PM

I wonder if anyone is working on a tune for it to handle the higher torque. Not that it needs faster shifting, but i am always for making things better

.

I had xHP tune on my auto 6 speed 335i and it was night and day difference.

kzg1969 · 06-30-2020, 06:11 AM

So anyone noticed the ConnectedShift function working?

hellcat2m4 · 09-24-2020, 04:50 PM

I'm Also curious as to what the Toqrque capacity is, and how reliable the ZF is with all the increased power from Bootmod3.

AlexFL · 09-24-2020, 04:53 PM

Quote:

Originally Posted by hellcat2m4

I'm Also curious as to what the Toqrque capacity is, and how reliable the ZF is with all the increased power from Bootmod3.

I think it's very reliable in that respect. Much more reliable than any dual clutch.

hellcat2m4 · 09-24-2020, 06:35 PM

Quote:

Originally Posted by AlexFL

I think it's very reliable in that respect. Much more reliable than any dual clutch.

Hey Alex I you are correct, as this is the route I plan on going after I take delivery here in a couple weeks. I had a 16 f82 with full e85 and the M4 gts dct flash and it ran like a champ. Love your wrap btw, care to pm me the cost of that?

hellcat2m4 · 09-24-2020, 07:09 PM

I saw it has the ZFM8HP76, and I saw a 650nm rating on the tech spec document which cant be right because that would mean 479lb ft of torque.

AlexFL · 09-24-2020, 08:51 PM

Quote:

Originally Posted by hellcat2m4

Hey Alex I you are correct, as this is the route I plan on going after I take delivery here in a couple weeks. I had a 16 f82 with full e85 and the M4 gts dct flash and it ran like a champ. Love your wrap btw, care to pm me the cost of that?

It’s Xpel Stealth with Xpel Fusion Plus Ceramic coating on top. All together 7k.

02-29-2020, 09:15 AM	#1
GT500R Major 800 Rep 1,219 Posts Drives: BMW X3M Join Date: May 2018 Location: NE iTrader: (0)	X3M Transmission Model? Anyone know what the actual model is of the ZF transmission in the X3M? ZF8HP75? 1st gen? 2nd gen? Thanks. __________________ X3M Alpine White - SOLD Fastest Tune Only Record - Mission Performance 10.84@127.43 / +1912 DA NH Dragway \| 10.6@130 Dragy / +820 DA The Streets \| NOW: Tesla Model Y Performance
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02-29-2020, 09:22 AM	#2
AlexFL Brigadier General 7836 Rep 4,607 Posts Drives: BMW Join Date: Jun 2019 Location: South Florida iTrader: (0)	It’s called “ZF M Steptronic” I think. https://www.automobile-catalog.com/auta_details1.php
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02-29-2020, 10:24 AM	#6
AlexFL Brigadier General 7836 Rep 4,607 Posts Drives: BMW Join Date: Jun 2019 Location: South Florida iTrader: (0)	From what I understood, M model gear boxes don’t follow these numbers...
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02-29-2020, 10:54 AM	#7
Wills2 Barge driver 8656 Rep 12,425 Posts Drives: 730d Join Date: Aug 2014 Location: UK iTrader: (0)	It uses the same gearbox version as the M5 which I believe is the ZF8HP75 gen2. A quick Google on real OEM give the part number as GA8HP75Z output all-wheel drive, it's shared with quite a few higher output BMWs 750/F chassis X5M etc.... __________________ 730d/Z4C Last edited by Wills2; 02-29-2020 at 11:19 AM..
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02-29-2020, 03:10 PM	#10
Wills2 Barge driver 8656 Rep 12,425 Posts Drives: 730d Join Date: Aug 2014 Location: UK iTrader: (0)	I have to caveat my post as it could be read the wrong way. It's my understanding that the X3M uses the same gearbox as the F90 M5, I checked realoem to see what that gearbox is (confirmation of ZF8HP75) but realoem doesn't have X3M listed so I'm still going on what I've read which leads me to believe they use the same gearbox, my 740d xdrive also uses this gearbox basically there isn't another ZF8 that can handle the torque as the next step down is the 50 version the next step up the 90. Hope that makes sense. __________________ 730d/Z4C
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02-29-2020, 03:44 PM	#11
BOGX4M Enlisted Member 46 Rep 38 Posts Drives: BMW X4MC X5 40d Join Date: Oct 2019 Location: Romania iTrader: (0)	Here is the technical manual: https://x3.xbimmers.com/forums/showthread.php?t=1623283 ”With the M8HP76 M Sport Steptronic transmission, which is based on the BMW AG 8HPTU2 gearbox,...”
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02-29-2020, 04:00 PM	#12
BMWZ4 Major General 1910 Rep 5,103 Posts Drives: '23 X1/'23 Allroad Progressiv Join Date: Apr 2010 Location: Toronto iTrader: (1)	Found this added info: Transmission type designation: GA8HP50Z: G01 X3M40i & G02 X4M40i M8HP76Z: F97 X3M & F98 X4M __________________ '11 Z4 30i (retired);'11 X3 28i (retired); '15 M235i Stage 1 Dinan (recalled & crushed); '16 M235i Stage 3 Dinan (retired); '15 X3 28i (retired); '14 328i (retired), 2019 X3M40i (retired); Loaded '18 X1 (retired); Loaded '20 X3MC DG, Black/Tan Merino (retired); Loaded '23 X1 Cape York green and Red/Black interior; '23 Audi A4 Allroad Progressiv
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06-29-2020, 09:39 PM	#16
sd306 Captain 381 Rep 641 Posts Drives: X5 40i Join Date: Sep 2015 Location: USA iTrader: (0)	I wonder if anyone is working on a tune for it to handle the higher torque. Not that it needs faster shifting, but i am always for making things better . I had xHP tune on my auto 6 speed 335i and it was night and day difference.
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06-30-2020, 06:11 AM	#17
kzg1969 Lieutenant Colonel 1299 Rep 1,926 Posts Drives: X3M Comp / M3 E93 Join Date: Nov 2016 Location: AberFreeze iTrader: (1)	So anyone noticed the ConnectedShift function working?
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09-24-2020, 04:50 PM	#18
hellcat2m4 First Lieutenant 224 Rep 331 Posts Drives: 2022 M3 Competition Join Date: Jun 2018 Location: DFW Texas iTrader: (0)	I'm Also curious as to what the Toqrque capacity is, and how reliable the ZF is with all the increased power from Bootmod3.
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09-24-2020, 07:09 PM	#21
hellcat2m4 First Lieutenant 224 Rep 331 Posts Drives: 2022 M3 Competition Join Date: Jun 2018 Location: DFW Texas iTrader: (0)	I saw it has the ZFM8HP76, and I saw a 650nm rating on the tech spec document which cant be right because that would mean 479lb ft of torque.
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