Yes it's true....Another transmission thread
 

Just when I thought I had escaped a faulty tranny, problems are now rearing their ugly heads. The car is a 2005, 4.4, 57K miles with updated tranny software. The symptom is as follows: Driving on flat roads around 30-35 mph at roughly 1000-1200 rpm, the transmission jerks as if it is attempting to shift. The jerk is very quick almost like the motor is missing. As soon as you apply a little throttle it goes away. I haven't completely ruled out the motor but it feels as if it is generated from the middle of the car. Any others have this happen? Any diagnosis? TIA.

Sounds like this thread....

http://www.xoutpost.com/bmw-sav-foru...n-jerking.html

I had the exact same problem. Tranny replaced at 80k miles and everything is great now.

Did your new trany come with control module??? I'm trying to pin down if it's a hyd block/valve issue or a program/control module issue.

Thanks

This is exactly what I'm trying to avoid. It's only got 57K pampered miles on it.

I'm dealing with the exact same issue, same year, same engine, same speed, same jerking issue. With my X, It doesn't do it in sport shift mode but occasionally when in full auto, it's very annoying.

Does anyone know, when trany is replaced under warrenty if it comes with the tranny control moduel? If it does not... then the only real culprit is the valve block its self. (about $700)

Found here.... ZF RWD Transmissions ZF5HP24 Makco Transmission Parts

If the tranny replacment under warrenty comes with a control maduel also that means it could be the valve block OR the control moduel.

If anyone knows... please share.

just had the adaptations for the tranny reset using GT1. still has the same issue. now i have to figure out if i want to replace the whole unit, get a rebuild (not many people offer this service) or drive it until it blows up. i'm not very happy right now. anybody know of a zf transmission rebuilder in the bay area?

there are many possibly cures for this issue
one culprit could be the shift solenoid controlling whatever gear it is in at the time
the wiring harness inside the transmission could be faulty
the check balls or valves inside tranny may need replaced
it could be any electrical issue
maybe the tranny needs a proper service

I believe pampering is not the best way to drive these cars. I drive the hell out mine and I have almost 300,000 on the tranny.