View Single Post
      06-09-2020, 09:41 AM   #9
mweisdorfer
Major General
mweisdorfer's Avatar
United_States
1905
Rep
6,968
Posts

Drives: 2007 Black/Black 335i e90
Join Date: Apr 2011
Location: Holly, MI

iTrader: (0)

Garage List
2007 BMW E90 335i  [0.00]
2008 bmw x5  [0.00]
Quote:
Originally Posted by jethroreed View Post
Quote:
Originally Posted by nicky dj View Post
Have you done the transmission service; pan, oil, mechatronic sleeve and the solenoids replacement? I would definite start there first but you are pretty much at the threshold that the Z6AT can handle.
I haven’t yet! Will definitely check it out. Wasn’t planning on putting much more power down though. Oddly enough it isn’t happening today. It’s very on and off.
If redoing the solenoids & Megatronic sleeves, coupled with a new filter & complete trans fluid flush doesn't work, you have 3 options really;

1) new or used A/T
2) manual trans swap
3) DCT trans swap

Options 2 & 3 are better than 1, but they won't be cheap, even with used parts.

Also, take xHp off when you redo the new solenoids.

Allow the trans to learn/relearn for a few hundred miles before putting xHp back on. I'm pretty sure you have to reset the transmission adaptations after putting in new solenoids.
Appreciate 0