2011 35i fluid leak near center of vehicle

[CB35i]

Hi all,

I washed my car today and noticed a puddle of fluid (oil?) leak near the center of the car.

The fluid feels oily and brownish in color, smell like oil. I did a search for other threads and google. I thought it was engine oil but all post showed that leaking engine oil should be near the front of the car and not towards the center.

No error in iDrive. Did an engine oil check and it is still at max level.

Can anyone tell me what could be leaking?

I have attached some photos.





Any help or suggestions will be appreciated.

Thanks in advance!