Problems with 2004 BMW Z4 POWER TRAIN

I own a suspected z4 with a nhtsa reported "sticky steering" issue i can tell you a little more about it. the problem has nothing to do with the boost. when the car gets hot (summer hot) the steering gets notchy in that when you put the car in a slight turn, like changing lanes or going around a slight corner, the steering literally sticks in that position causing the driver to apply opposite pressure to "break" the wheel loose from the turn followed by another stick wherever the wheel is brought back to. problem is that it causes massive over steering issues at high speed unless you are looking for it. extremely dangerous at highway speeds! bmw knew about it and released multiple pumas (their equivalent of a tsb) and even redesigned the suspect column, but refused to replace the older ones out of warranty. these are $3000 before labor and bmw has flat out told me that they won't cover a single dollar of it. i guess we will see nhtsa forces their hand! i am scared to death to drive the vehicle i had to jerk to out of another lane several times and you must work extremely hard to keep it straight. please do something before someone gets hurt. *tr

Tl* the contact owns a 2004 bmw z4. the contact stated that upon entering her vehicle and starting it, she was unable to shift the vehicle into any gear. the vehicle was inspected by a dealer who informed the contact that she would need to replace the automatic manual transmission. the vehicle was repaired yet the failure recurred within 32,000 miles. the manufacturer was contacted and informed the contact that they were unable to assist with repairs. the failure mileage was approximately 41,900.