Power Transfer Unit Leaks From the LH Side
WARNING: This page is about a different car, the 2018 Lincoln MKC. However, it is still accessible from the selected car via links, so may be relevant.
If the leak is automatic transmission fluid, the LH halfshaft seal and compression seal needs to be replaced. REFER to: Halfshaft Seal RH - AWD . REFER to: Transfer Case .
If the leak is brown/black gear lube replace the LH input shaft seal and the compression seal. REFER to: Transfer Case Input Shaft Seal LH .