Intercooler Water Spray - Subaru WRX STI S209 Supplement Manual

Intercooler water spray

Intercooler water spray switches
Pull the intercooler water spray switches
for approximately 1/2 seconds or more to
spray water onto the intercooler. This can
be used to help maintain adequate inter-
cooler performance when the outside
temperature is high.
Water is sprayed to the intercooler re-
gardless of which switch is pulled. Water
is sprayed for approximately 2 seconds.
Intercooler water spray warning light
NOTE
. The intercooler water spray warning
light comes on when the water level in
the tank has dropped to the lower limit.
If the warning light illuminates, refill
the tank with water. The tank is under
the floor of the trunk.
. In cold weather (when you do not
use the intercooler water spray), keep
the tank half-empty or below in case
the water freezes. If a large amount of
water in the tank freezes, it could
cause the tank to crack.
. This function does not dramatically
improve the vehicle's performance.
CAUTION
. Do not pull the switches when
the warning light is illuminated. If
the switch is kept pulled when
the tank is short of water, the
water pump motor could over-
heat.
. Do not pull the switches when
the ambient temperature is 418F
(58C) or lower. If the intercooler
water spray is used in cold
temperatures, the water could
be frozen and cause the water
pump motor to overheat.
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