Apr 13, 2018 ??” Clicking sound when turning: The most common symptom of a bad CV ... This can also be an issue with your transaxle, differential or U-joints??.... The oil in your rear differential is considered lifetime by BMW. This does not ... I'm about to try to change my rear diff mount which is badly cracked. May 27, 2019.. The xDrive is a transfer case, not differential. In a vehicle with no center differential, you may get some windup (you can google "axle windup awd" for more info). ステップ3ここに確認コードを入力しま