Analysis of Leakage
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.
The transfer case unit may leak different color fluids, transmission fluid and a brown/black gear lube for transfer case unit fluid. The transfer case unit seals prevent these types of fluids from leaking. Its important to note the color of fluid leaking to determine the most appropriate service procedure.
NOTE:
Remove and replace leaking seals using the information found in the Input Shaft Seal or Cover Seal replacement procedure. The specified tools called out in this procedure allows seal replacement without causing damage to the transfer case unit casing/drive gear.