Brand new to the site & looking for guidance if possible. So I have a 03 BMW X5 4.4L with 160k that gets a Transmissions Fail Safe after 5 min. of drive time. Then after maybe 2hrs of rest, it will preform as normal for another 5 min until the Tran Fail Safe comes on again, and goes into limp mode with loss of power to engine. Overnight rest, i can drive it longer... It gives me this code (P0751 Shift Solenoid “A” CKT performance Or stuck off) I find this so interesting because I had a 2004 X5 134k (3.0 engine)with the EXACT same problem 2 years ago, and I sold it thinking trans was shot. The symptoms are identical! Before I start replacing parts, I thought I ask around...