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3-44
Instruments and controls
Intercooler water spray switch (WRX-
STi)
Pressing this switch causes water to be sprayed into
the intercooler. It can be used to help maintain ade-
quate intercooler performance when the outside tem-
perature is high.
Water is sprayed for approximately two seconds every
time the switch is pressed and then released.
NOTE
y 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, re-
fill the tank with water. The tank is located on the
right hand side of the trunk. For the tank refilling
method, refer to the “Intercooler water spray
(WRX-STi)” section in Chapter 11.
y In cold weather (when you do not use the inter-
cooler water spray), keep the tank half-empty or
below in case the water freezes. A larger amount
of water could break the tank if it froze.
I/C
WATER
SPRAY
UG3509BA
UGB079BA
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