2014 Cadillac CTS Owner Manual - Page 326
2014 Cadillac CTS Manual
Page 326 highlights
10-22 Vehicle Care 4. With the coolant surge tank pressure cap off, start the engine and let it run until you can feel the upper radiator hose getting hot. The upper radiator hose is the top hose coming out of the radiator, on the passenger side of the vehicle. Watch out for the engine cooling fans. By this time, the coolant level inside the coolant surge tank may be lower. If the level is lower, add more of the proper mixture to the coolant surge tank until the level reaches the FROID/FULL COLD line on the side of the coolant surge tank. 5. Replace the pressure cap. Be sure the pressure cap is hand-tight and fully seated. { Caution If the pressure cap is not tightly installed, coolant loss and possible engine damage may occur. Be sure the cap is properly and tightly secured. Recheck the coolant level in the bottle next time you use your vehicle to ensure the system is full when cold. 3. Fill the coolant surge tank with the proper mixture, to slightly above the FROID/FULL COLD line on the side of the coolant surge tank. Checking Coolant in the Intercooler System (CTS-V) The vehicle must be on a level surface when checking the coolant level. The super charged engine intercooler coolant fill neck is in the engine compartment on the passenger side of the vehicle. See Engine Compartment Overview on page 10-6.