Can anyone help me identify this sound. E46 M3 was converted to a manual, sounds like a blender that increases in sounds as RPMs’s increase. This sound started as soon as I unplugged all of the transmission modules in the engine bay after the swap. When I push the clutch in the sound goes away.
I was considering plugging the connectors for the modules back in the DME box but everywhere ive read said to unplug them.
video link:
bmw e46 m3 whining sound