Hi all sifus,My ride e46 320i when slowing down it jerks, plugged in scanner it showed torque converter clutch too much slip went to mech. to comfirm, result same, mech. advice to rebuilt the converter. is it necessary to rebuilt? since the dashboard not showing the gear fault mark, can continue driving if not rectify? will it be better if upgrade the gearbox software? or live with it?any sifus experience before? please advice many thanks.