ICON A5 MM : Propulsion : Engine : Cooling System : Inspection Instructions : Cooling System Inspection
Cooling System Inspection
100152-00
Perform the maintenance inspections on the cooling system.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
Owner/Pilot
Task Specific Training Required
No
Special Tools Required
Densimeter or
Glycol Tester
Parts Required
None
Aircraft System and Number
13—Propulsion
Safety Equipment
As Needed
Consumables
None
Task Instructions
1. Open the radiator cap on the expansion tank. The expansion tank is located inside the engine cowling.
Warning: 
The engine must be completely cool before opening the radiator cap. Do not open the radiator cap when the engine is hot as you may be severely scalded by pressurized, hot coolant.
2. Check the coolant level. The coolant level must be filled up to the top.
3. Inspect coolant with densimeter or glycol tester. Strongly discolored or thickened coolant must be replaced.
4. Use only a 50:50 mixture of antifreeze and distilled water in accordance with the approved engine coolant grades (Approved Engine Coolant Grades and Capacity) and replenish as necessary with coolant.
5. Tighten the radiator cap.
Note: 
The radiator cap must be tightened until the stop lug is contacted.
Verification Method
An engine test run is necessary to verify system is working properly with no leaks. Verify a proper amount of coolant in the coolant overflow bottle after a full engine run cycle. (Approved Engine Coolant Grades and Capacity)