Mechatronic sloenoids are attached to the mechatroninc uint (valve body). You have to drop the trans oil pan to get to it. You will need at least 5 liters of ZF lifeguard fluid that is correct for your trans (LG5 or LG6) and a trans filter min... This is IN THE TRANS... Not for faint of heart. But if you don't do it yourself we are talking $$$$. No shop will go to component level. They will only sell you a re-man trans and install. Sorry you are experiencing this problem, but google it and read everything you can. Someone somewhere has been through this and you will find some breadcrumbs to get you to where you need to be.

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Vancouver, WA

2005 4.4i (LV12368) on Style 87's in summer and Studded Style 130's in winter.

1997 M3/4/5 (EE05340) W/ Vaders, Hella Xenon's, Chromline, DSII's in Summer, Contours on studless snows in winter.