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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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Old 04-07-2020, 06:19 PM
E90twinsnail E90twinsnail is offline
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ZF 5HP24 Issue

his is the THIRD time I have the transmission (ZF 5HP24) out of my 02í E53 X5 4.4 and it is still not working correctly. Iím at a point of pure frustration dealing with the trans and Iím not really sure where to go from here.

The first time I pulled the trans I replaced the torque converter and replaced the pressure regulator valve with the upgraded one from TransGo (to address issues with torque converter lock-up codes as well as harsh shifting and going into fail-safe). After getting the trans back in was still having problems now with a new series of codes. When selecting a forward gear (reverse functioned normally) there was a slight delay and then it "clunks" into gear. If by some luck it doesn't immediately go into trans safe mode by then it will shift harshly with the engine freewheeling/revving up before hunting for the next gear. The codes I was getting were P0750 and P0751 and seem to indicate an issue with "shift solenoid A." After doing a lot of research I became convinced it was an issue with the A-Clutch drum.

The second time I pulled the trans I found that the O-ring seal between the A and B clutch drum was split which seemed to explain all the remaining symptoms I was having. I got the trans back in and went back for a test drive and noticed that it was no longer banging into gear when I engaged drive and was very hopeful that it was finally fixed. However, before I even got out of the driveway it went into fail-safe and I was absolutely devastated. It was showing the P0751 ďShift solenoid A stuck offĒ code again so I crawled back under the car to recheck the electrical connections and trans fluid level. Before I set off again, I reset trans adaptations with INPA hoping it may be a TCM learning issue. This time I actually got to witness the transmission shift and was astonished to see that it was behaving absolutely normally. The shifts were smooth and quick with no free wheeling or hunting for gears. I was really hopeful but after 2 miles of my test drive the dreaded fail-safe signaled itself across the dash even though it was otherwise behaving normally.

I now have the trans out a THIRD time and have dug a bit deeper by disassembly the A and B clutch assemblies. I checked all their various seals expecting another leak, but everything looks pristine and undamaged. I used INPA to pull up the error history and noticed a low voltage error. Since the car has been sitting for so long my battery no longer holds a charge for more than a day or two without use and I usually have to jump start it before each test drive. Iím beginning to suspect that the issue may be a bad battery, but I would think when it's running it would have more than sufficient voltage to not effect function of the trans.

Iím really at a loss here and donít want to have to put the trans back in this car again until Iím certain I fixed the problem. Unfortunately, Iím out of ideas and Iím hoping that the collective knowledge of the forum may help me in this fiasco.

Currently I feel doomed to be spending the rest of my life just pulling the trans and putting it back in againÖ
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Old 04-08-2020, 04:19 AM
Doug Huffman's Avatar
Doug Huffman Doug Huffman is offline
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Location: Washington Island, Wisconsin, thru Death's Door
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Mein Auto: CPO2012 X5 35d M57(E70)
I would consider a professional rebuild with warranty.
Scepticism and Animal Faith (1923)
Scepticism is the chastity of the intellect, and it is shameful to surrender it too soon or to the first comer: there is nobility in preserving it coolly and proudly through long youth, until at last, in the ripeness of instinct and discretion, it can be safely exchanged for fidelity and happiness.
(The Works of George Santayana p. 65)

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Old 04-08-2020, 06:32 PM
FredoinSF FredoinSF is offline
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Location: Reno NV & Healdsburg CA
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Mein Auto: 4 BMWs, 1 Mini, 1 Vespa
I wish I could help, but this is way beyond my level of expertise.
ZF has service centers throughout the country. Maybe give one of them a call and ask for a consultation? Probably won't be free but these guys do these jobs day in and day out. You can find a list of repair centers on the ZF web site.

I assume that you went through the proper procedure for trans refill and are using the proper fluid.

Also, you posted in E70 rather than E53 but not sure it matters given how technical this job is. Would be interested to know the mileage on the car - and presumably the transmission. Good luck, I hope you come back with an update.
2018 540ix
2015 428i convertible
2013 Cooper S
2007 650i - 6 speed
2002 330ci convertible - 5 speed

2012 X5 Diesel
2012 Countryman S All4 - 6 speed
2006 Cooper S - 6 speed
2006 330i - 6 speed
1997 328is - 5 speed
1991 318is - 5 speed
1988 635csi - 5 speed
1988 325i convertible - 5 speed
1969 2002 with tii and 5 speed conversions
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Old 04-08-2020, 09:29 PM
ard ard is offline
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Location: Sierra foothills, California USA
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Mein Auto: '12 X5 35d/E39M5/996TTX50
Nothing to add, except low battery voltage can causeerrors between modules at start up- TCU to ECU. You should invest in a proper trickle charger AND NOT JUMPING IT EACH TIME.

Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label

OEM is not what BMW sells


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Old 04-09-2020, 09:55 AM
Badsmerf Badsmerf is offline
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Mein Auto: 2010 X5 35d
I'd definitely echo getting in touch with ZF. However, I do have a question: you have been getting a solenoid A alarm consistently.... and haven't replaced solenoid A? Damaged O rings will certainly hinder performance, but I doubt they'd throw an electrical code. My 2 sense, probably worth less than that!
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