12. COOLING SYSTEM K-XCT 125i Fill the system with the recommended coolant through the filler opening up to the filler neck (1). Bleed air from the system as follow: 1. Start the engine and let it idle for 23 minutes. 2. Snap the throttle three to four times to bleed air from the system. 3. Stop the engine and add coolant to the proper level if necessary. Reinstall the radiator cap. 4. Check the level of coolant in the reserve tank and fill to the upper level if it is (1) low. 12-6