2005 BMW 745Li Base 8 Cyl 4.4L
Transmissions & Drivetrains
why does my car hesitate/jerk when i'm going 35-45 mph?
thought the torque converter was the problem. had it replaced and it's happening again.
Many possibilities; battery loose connection, spark plugs, ignition wires, fuel / air filter dirty / clogged, etc. Try these simple and inexpensive items first; either check, fix and / or replace. Then ,post the results for additional steps or possibilities.