2005 Ford Five Hundred Owner's Manual - Page 228

Maintenance and Specifications 1. Before you begin, turn the engine off and let it cool. 2. When the engine is cool, wrap a thick cloth around the coolant pressure relief cap on the coolant reservoir (an opaque plastic bottle). Slowly turn cap counterclockwise (left) until pressure begins to release. 3. Step back while the pressure releases. 4. When you are sure that all the pressure has been released, use the cloth to turn it counterclockwise and remove the cap. If coolant reservoir is empty, continue with steps 5-9, if coolant reservoir level is only slightly low (coolant still in reservoir), continue to Steps 5 and 6 only. 5. Fill the coolant reservoir slowly with the proper coolant mixture (see above), to within the "COLD FILL RANGE" or the "FULL COLD" level on the reservoir. 6. Replace the cap. Turn until tightly installed. (Cap must be tightly installed to prevent coolant loss.) 7. Pull off metal pin and remove coolant bleed plug from the thermostat housing. 228 2005 Five Hundred (500) Owners Guide (post-2002-fmt) USA (fus)