Subaru WRX & WRX STI Manuals 2011 Impreza WRX & WRX STI Owner's Manual | Page 369

Maintenance and service

just below the filler neck, allowing enough
room to add genuine SUBARU cooling
system conditioner in the radiator. Add
genuine SUBARU cooling system conditioner until the coolant level reaches the
filler neck. Do not pour the coolant too
quickly, as this may lead to insufficient air
bleeding and trapped air in the system.

NOTE
For the guidelines of coolant quantity
(including coolant in the reservoir
tank), refer to “Capacities” F12-4.

1)
2)

“FULL” level mark
“LOW” level mark

CAUTION
. Be careful not to spill engine

coolant when adding it. If coolant
touches the exhaust pipe, it may
cause a bad smell, smoke, and/or
a fire. If engine coolant gets on
the exhaust pipe, be sure to wipe
it off.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
6. Pour the coolant and fill to the reservoir tank’s “FULL” level mark.

7. Put the radiator cap back on and
tighten firmly. At this time, make sure that
the rubber gasket in the radiator cap is
correctly in place.
8. Start and race the engine at 2,000 to
3,000 rpm for 5 to 6 times within 40

11-17

seconds.
9. Stop the engine and wait until the
coolant cools down (122 to 1408F [50 to
608C]). If there is any loss of coolant, add
coolant to the radiator’s filler neck and to
the reserve tank’s “FULL” level.
10. Put the radiator cap and reservoir cap
back on and tighten firmly.