2009 Polaris IQ Turbo Switchback Owners Manual - Page 116

Cooling System MAINTENANCE Bleeding the Cooling System 8. While observing the coolant reservoir bottle and making sure the coolant level is visible, observe the engine temperature in the digital display. The temperature should rise steadily, indicating that the system is bleeding properly. 9. If the temperature does not rise at all after approximately one minute, stop the engine and see your dealer for service. 10. While the engine temperature is rising, allow the engine to idle until the temperature reaches approximately 185° F (85° C). Wait for the level in the bottle to go down. When the level stabilizes (or if the level reaches the bottom of the bottle), stop the engine. If the coolant level is unchanged, skip to step 13. 11. Allow the engine to cool, then carefully remove the pressure cap and add coolant through the filler neck until the reservoir bottle is full. Reinstall the pressure cap and start the engine. 12. Repeat steps 10-11 until the the coolant level in the bottle no longer falls at an engine temperature of 185° F (85° C) or greater. 13. Feel the coolers at the rear of the snowmobile (rear cooler, de-icers, grippers, as equipped). These components should be warm to the touch, indicating the thermostat is open and the entire cooling system is bleeding. 14. Some air bubbles may still be trapped in the rear cooler. To ensure they are removed, ride the snowmobile at various throttle openings for 2-3 miles (3-5 km). Recheck the coolant level in the reservoir bottle. The bottle should be full. 15. Feel the coolers on both sides of the snowmobile. If the coolers are warm, coolant is circulating through the system properly. 16. Stop the engine. Allow it to cool completely. 17. Remove the coolant overflow tank cap. Add coolant to the "COLD FILL" mark on the tank. Reinstall the cap. 113