WARNING: This page is about a different car, the 2005 Mercury Montego, 2005 Ford Freestyle, and 2005 Ford Five Hundred. However, it is still accessible from the selected car via links, so may be relevant.
MATERIAL SPECIFICATION - HYDRAULIC CONTROL UNIT (HCU)
Item
Specification
High Performance DOT 3 Motor Vehicle Brake Fluid PM-1 (Canada CPM-1)
ESA-M6C25-A or WSS-M6C62-A
Fig 1: Identifying Components Of Hydraulic Control Unit (HCU)