first day of driving mine and i notice the whine u guys describe. it's most noticeable for me when i let off the gas but i think that it's coming form the auto tranny downshifting. perhaps you guys don't notice but i feel that the e90 auto quite frequently downshifts, so much that usually when u let off the gas, u can feel some engine braking like you do in manual cars. in other auto cars i've driven, there's no engine braking whatsoever and the car seems to move at the same speed until u hit the brakes.
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