Anyone have any updates??? I do want to say that It does not seem as bad or as often since the temp has dropped here...

Wish I could say the same. Mine suddenly got much worse. It even developed new symptoms! Funny tho..... it only got worse when I checked the fluid level, and found it was low. I added about 1/2 quart of dexron VI. And it was all down hioll from there.

I did find a "ZF Certified" transmission repair shop in Reading PA. (45 mins from me)

Droped my X off there last night and just got a call from them, saying they recorded all the codes and need to remove the trany. I'll have much more detail in 24 hrs.

hang tight.

Hey,check out the Post #43
Engine S-H-U-D-D-E-R under low speed power - Page 2 - Bimmerforums - The Ultimate BMW Forum

He is right I think.

Also I read the bulletin from BMW and for ZF transmissions it states :

USE ONLY ESSO ATF LT 71141 BMW PART NUMBER 83 22 9 407 807 20 LITER BLUE – LIFETIME FILL
Clear enough IMO...next time I am gonna DIY once the warranty in off..in a year.
Mine is shuddering yet...and originally it started to shudder once the ATF was changed( no TC drain though)...after the rebuilt I think the shop didn't really follow the procedure the way it should've been. As it was a second ZF tranny ever for them...anyway..I need this shudder gone,the lurch is gone,so shudder will be too :) some day.

Never put Dexron transmission fluid in a ZF transmission. It does go in the 3.0 (GM) transmission.

That's what mine's got filled with apparently....
JCL tell me if you know,what mixing of different fluids would cause?
Example :

When I bought my X it was sitting for at list a year and tranny's fluid was jelly alike dark something. Local shop had drained the half and refilled with I don't know what..well I would say that I haven't researched anything about the fluids etc. at that point and this one being my first Auto box ever never thought there's a difference..
So after about 1500 kms I started to get Lurch and shuddering,shuddering appeared way later and so subtle at the beginning,so I wasn't really worried,but it's got way worse and more frequent,and I finally decided to get a rebuild as reverse started to jerk as well...
So,if I drain the fluid now,I would be able to get half drained.If I refill with a proper fluid ,would the mix of different fluids hurt the anything?
Or I should go to the shop and get a proper flush and refill?
This option would cost me extra,because from their point they performed everything correctly the first time.

Read every word of this!!!! This is the answer!!!

BMW Case Study - E38 2000 740i misfire juddering

Any updates on any of the guys that said they were taking thier X in for tranny work? I like to know what the results were?

It's going in for the warranty fix,transmission guy contacted the ZF and they said that there's a part that get's changed every time you rebuild no matter how good looking it is.I am a bit confused as he couldn't really explain what it is.
I read that there's something in clutch A getting more clearance than expected over the time and causes some pressure to escape which is getting into the shudder.
I had the fluid flushed twice by the shop,shifts are so smooth and nice,but once in a while I get the freaking shudder and if before it was just under light throttle,now I get it under moderate throttle when going up hill + the light throttle as well.
And it sucks.
I am gonna write as soon as I get some updates.
This thread is bookmarked :)

The ZF 5HP24 transmission (A5S 440Z) is very unusual in that, in order to save weight & space, ZF removed the torsional vibration damper from the lock-up clutch and instead rely on their ‘controlled slip’ system to modulate the LUC pressures and prevent the transmission of torsional vibration at lower engine speeds.

To achieve this, the transmission control system has to be extremely sophisticated and highly sensitive to load/power. As an example, the graph below shows a constant 50mph with the cruise control activated. The throttle (shown by the blue line) is opening & closing to maintain vehicle speed as the vehicle goes up & down hill etc. as you would expect. However, the magenta line shows the current being supplied to Solenoid 4 (which pressurises the torque converter lock-up clutch) as a percentage of maximum. You can see that the transmission ECU supplies pressure to the lock-up clutch so that it mimics exactly the throttle opening and therefore the torque seen at the clutch. This maintains a (close to) constant speed ratio across the torque converter i.e. with 3-4% slip to dampen out torsional vibrations.

At higher engine/vehicle speeds the lock-up clutch will ‘lock’ completely as there’s no longer a risk of vibration being fed through the driveline.

This controlled slip function of the lock-up clutch is one of the main reasons that it’s essential to use only LT71141 fluid in this transmission as it has been specially formulated with the right friction modifier pack for the clutch characteristics.

If a vibration can be felt in the lower gears or at low engine/vehicle speeds or the engine speed fluctuates by a few hundred rpm then it could be the torque converter lock-up clutch at fault.

Phil

It was the torque converter badly rebuilt in my case.