These are my MOMO settings and "for me" are perfect:
(in windows "logitech profiler" software values are all default)
LAUNCH f1 2012
in game select DRIVING CONTROLS
in CONTROL PROFILE select LOGITECH MOMO WHEEL
then u select VIEW/CUSTOMIZE PROFILE and change the wheels butons as u like. i changed car status, replay,camera change, rear view, pause. As i dont use manual guears i set kers and drs to wheels pads.
go to ADVANCED WHEEL SETTINGS:
steering deadzone 0%
steering saturation 13%
steering linearity 20%
throttle deadzone 0%
throttle saturation 0%
brake deadzone 4%
brake saturation 0%
in FORCE FEEDBACK OPTIONS:
feedback ON
environmental effects 50%
feedback strenght 50%
wheel weight 0%
in option OVERRIDE INPUT DEVICE TYPE, chose STEERING WHEEL
now give it a try!