508 7-3. Do-it-yourself maintenance
Checking the power control unit coolant
The coolant level is satisfactory if it is between the“ MAX” and“ MIN” lines on the reservoir when the EV system is cold.
For more details about coolant, contact your SUBARU retailer.
nIf the coolant level drops within a short time of replenishing
Visually check the hoses, heater coolant reservoir caps, drain cock and water pump.
If you cannot find a leak, have your SUBARU retailer, test the cap and
check for leaks in the cooling system.
WARNING
A Reservoir cap“ MAX” line“ MIN” line
If the level is on or below the“ MIN” line, add coolant up to the“ MAX” line.
n Coolant selection
In order to ensure maximum performance of the traction battery cooling system and limit risks of battery
short circuit and other damage to your vehicle, SUBARU recommends using“ Genuine Traction Battery Coolant” or similar high-quality ethylene glycol-based, low electric conductivity coolant, non-amine and
non-borate coolant with azole additives.
SUBARU cannot guarantee that the use of a product other than“ Genuine Traction Battery Coolant” will prevent risks of battery short circuit or other damage.
Never use water as it will cause damage.
Do not reuse coolant that has been removed from the radiator. n When the EV system is hot
Do not remove the power control unit coolant reservoir caps.
The cooling system may be under pressure and may spray hot coolant if the cap is removed, causing serious injuries, such as burns.
NOTICE n 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.
n If you spill coolant Be sure to wash it off with water to prevent it from damaging parts or
paint.
Checking and adding the brake fluid
n Checking fluid level
The brake fluid level should be between the“ MAX” and“ MIN” lines on the tank.