Cooling System: Service and Repair
REPLACEMENT1. DRAINING 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 radiator cap so that engine coolant will drain faster.
4 Install the drain plug.
2. FILLING OF ENGINE COOLANT
1 Pour cooling system conditioner through the filler neck.
Cooling system protective agent: COOLING SYSTEM CONDITIONER (Part No. SOA635071)
2 Pour engine coolant into the radiator up to the filler neck position.
Coolant capacity (fill up to "FULL" level):
Approx. 7.2 L (7.6 US qt. 6.3 Imp. qt.)
NOTE: 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.
3 Fill engine coolant into the reservoir tank up to "FULL" level.
4 Close the radiator cap, and start the engine. Race 5 to 6 times at 3,000 rpm or less, then stop the engine. (Complete this operation within 40 seconds.)
5 Wait for one minute after the engine stops, open the radiator cap. If the engine coolant level drops, add engine coolant into radiator up to the filler neck position.
6 Perform the procedures 4 and 5 again.
7 Install the radiator cap and reservoir tank cap properly.
8 Start the engine and operate the heater at maximum hot position and the blower speed setting to "LO".
9 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.
10 Stop the engine and wait until engine coolant temperature lowers to 30°C (86°F).
11 Open the radiator cap. If the engine coolant level drops, add engine coolant into radiator up to the filler neck position and reservoir tank to the "FULL" level.
12 Install the radiator cap and reservoir tank cap properly.
13 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, perform the procedures from 9 again.