F82 M4 Diff whine possible recall??

[7Elliot]

Hi all,
I have a 2016 bmw m4c that has developed a faint whine that has slowly got louder, i believe it is the diff as its a constant whine and doesnt go depending on gears or in neutral or not, ive had a look and it seems bmw have a recall from 12th may 2016 - 12 july 2016 for diff failure, mines a 10th may 2016 one, anyone experienced anything similar? Ill be in contact with bmw in the morning to ask

[Cowsgomoo1284]

Does it go away when you’re in gear, off throttle? Mine has always done this, I think it may be normal. Changed diff oil made no difference. Interested in what BMW says