panthersb 
2005 BMW 5 Series Sedan 545i 4dr Sedan (4.4L 8cyl 6M)
Automatic Transmission Issues
 In all, the 545i is a well-balanced rig -- amazingly fast and agile for a car of its size and comfort.My car has been plagued with electrical issues however, and a glitch with the transmission is enough to force me to replace it.When driving under slight power between 35 and 40 mph, the car feels as if there is a disruption in the fuel delivery or ignition.When I first demonstrated this to the dealer, a tech said it was the transmission, it was normal, and by shifting it to sport mode I could eliminate the issue. Unacceptable, in my opinion.This isn't "normal" behavior for any car, and I don't want to drive in sport mode to fix a transmission malfunction.Major buzz kill.