Did multiple searches.. couldn't find any info so started a new thread. When i shut the 2017 X3 Turbo off there is a few seconds long spinning gear type of noise. Sounds like it is coming from high up on the motor and righthand side... Turbo? Is this a normal sound.. i havent been around other X3's so i need the input from the owners here. My first SxS, and Turbo. Appreciate any assistance.. I am guessing the bearings on the turbo are going.. 4K miles on machine. No sand.. all northern forest trail miles. Thx!