Cooling System: Service and Repair
REPLACEMENTDRAINING OF ENGINE COOLANT
1. Lift-up the vehicle.
2. Remove the under cover.
3. Remove the drain plug to drain engine coolant into container.
NOTE: Remove the coolant filler tank cap so that engine coolant will drain faster.
4. Install the drain plug.
FILLING OF ENGINE COOLANT
1. Remove the collector cover.
2. Pour cooling system conditioner through the filler neck.
Cooling system protective agent:
COOLING SYSTEM CONDITIONER (Part No. SOA635071)
3. Fill engine coolant into coolant filler tank up to the filler neck position.
Coolant capacity (fill up to "FULL" level):
AT model Approx. 7.2 L (7.6 US qt., 6.3 Imp. qt.)
MT model Approx. 7.3 L (7.7 US qt., 6.4 Imp. qt.)
CAUTION: Do not confuse the cap of coolant filler tank with that of radiator.
NOTE:
^ When pouring the engine coolant, the radiator side cap must not be removed.
^ The SUBARU Genuine Coolant containing antifreeze and anti-rust agents is especially made for SUBARU engine, which has an aluminum crankcase. Always use SUBARU Genuine Coolant, since other coolant may cause corrosion.
4. Fill engine coolant into the reservoir tank up to "FULL" level.
5. Close the coolant filler tank cap, start the engine and race 5 to 6 times at less than 3,000 rpm, then stop the engine. (Complete this operation within 40 seconds.)
6. Wait for one minute after the engine stops, open the coolant filler tank cap. If the engine coolant level drops, add engine coolant to the filler neck position of radiator.
7. Perform the procedures 5 and 6 again.
8. Attach the coolant filler tank cap and reservoir tank cap properly.
9. Start the engine and operate the heater at maximum hot position and the blower speed setting to "LO".
10. Run the engine at 2,000 rpm or less until radiator fan starts and stops.
NOTE:
^ Be careful with the engine coolant temperature gauge to prevent overheating.
^ If the radiator hose becomes harden by engine coolant pressure at this time, air purge seems to be mostly completed.
11. Stop the engine and wait until engine coolant temperature lowers to 30°C (86°F) or less.
12. Open the coolant filler tank cap. If the engine coolant level drops, add engine coolant into the coolant filler tank up to the filler neck position and the reservoir tank to "FULL" level.
13. Attach the coolant filler tank cap and reservoir tank cap properly.
14. Set the heater setting to maximum hot position and the blower speed setting to "LO" and start the engine. Perform racing at less than 3,000 rpm. If the flowing sound is heard from heater core, repeat the procedures from step 10.
15. Install the collector cover.