479 . . .–––––Section 5Checking and AddingCoolant to IntercoolerSystem (CTS-V Model Only)NOTICEThe intercooler system on the6.2L V8 engine has a specificcoolant fill procedure. Failure tofollow this procedure mayresult in the engine overheatingand in severe engine damage. Turn off the ignition and let theengine compartment cool down.The intercooler coolant fill bottle islocated in the engine compart-ment on the passenger side of thevehicle.If coolant is visible but the coolantlevel is not at or above the COLDFILL mark, wait a while for theengine to cool, then add a 50/50mixture of clean, drinkable waterand DEX-COOL® coolant at thecoolant fill bottle. See "EngineCoolant" in the "Service andMaintenance" section.If the engine is warm or hot, thecoolant level should be at or abovethe COLD FILL line on the side ofthe coolant fill bottle.If the engine is cold, the coolantlevel should be near the COLDFILL line on the side of the coolantfill bottle. If it is not, you couldhave a leak in the cooling system.CAUTIONSteam and scalding liquids froma hot cooling system can blowout and burn you badly. Neverturn the cap when the engineand cooling system are hot.AKENG40_CTS Page 479 Wednesday, July 23, 2008 11:47 AM
