Transfer case Unit Leaks From the LH Side
WARNING: This page is about a different car, the 2018 Ford EcoSport. However, it is still accessible from the selected car via links, so may be relevant.
If the leak is transmission fluid, the compression seal needs to be replaced. This is between the transfer case unit and transmission. Refer to: (-)
If the leak is brown/black and venting fluid from the top of the transfer case unit, the transfer case unit is overfilled due to the input shaft seals leaking transmission fluid into the transfer case unit. Replace the input shaft seals,