Subaru WRX & WRX STI Manuals 2017 WRX & WRX STI Owner’s Manual | Page 501

11-18

Maintenance and service/Cooling system

Check the fuse and replace it if necessary.
Refer to “Fuses” F11-42 and “Fuses and
circuits” F12-10.
If the fuse is not blown, have the cooling
system checked by your SUBARU dealer.
If frequent addition of coolant is necessary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness.

of the reservoir while the engine is cool.
2. If the level is close to or lower than the
“LOW” level mark, add coolant up to the
“FULL” level mark. If the reserve tank is
empty, remove the radiator cap and refill
coolant up to just below the filler neck as
shown in the following illustration.

& Engine coolant
Except STI
1) Fill up to this level

! Checking the coolant level

STI
1) Fill up to this level

1)
2)

“FULL” level mark
“LOW” level mark

Check the coolant level at each fuel stop.
1. Check the coolant level on the outside

3. After refilling the reserve tank and the
radiator, reinstall the cap and check that
the rubber gaskets inside the radiator cap
are in the proper position.