7-3. Do-it-yourself maintenance
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Checking the heater coolant
The coolant level is satisfactory if it is between the“ MAX” and“ MIN” lines on the reservoir when the EV system is cold.
Reservoir cap“ MAX” line
“ MIN” line
If the level is on or below the“ MIN” line, add coolant up to the“ MAX” line.( �P. 648)
■ Coolant selection
Only use“ GENUINE SUPER LONG
LIFE COOLANT( PINK)” or a similar high quality ethylene glycol-based non-silicate, non-amine, non-nitrite,
and nonborate coolant with long-life hybrid organic acid technology.
“ GENUINE SUPER LONG LIFE COOLANT( PINK)” is a mixture of 50 % coolant and 50 % deionized
water.( Minimum temperature:-31 ° F [-35 ° C ])
For more details about coolant, contact your SUBARU dealer.
■ If the coolant level drops within a short time of replenishing
Visually check the radiator, hoses, power control unit coolant reservoir caps and water pump.
If you cannot find a leak, have your SUBARU dealer, test the cap and
check for leaks in the cooling system.
WARNING
■ When the heater system is hot
Do not remove the heater coolant reservoir caps.
The heater system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.
NOTICE
■ When adding coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water and antifreeze must be used to provide proper
lubrication, corrosion protection and cooling. Be sure to read the antifreeze or coolant label.
■ If you spill coolant Be sure to wash it off with water to prevent it from damaging parts or paint.
Checking the radiator
Check the radiator and clear away any foreign objects.
If either of the above parts is extremely dirty or you are not sure of their condition, have your vehicle inspected SUBARU dealer.
7
Maintenance and care