Toyota Matrix 2003 Operating Manual page 148

4. Remove the filter from the filter out-
let. Inspect the filter on the surface.
If it is dirty, it should be replaced.
148
'03 MATRIX_U (L/O 0201)
When installing the filter in the filter
outlet, keep the arrow pointing up.
INFORMATION
The air filter should be installed prop-
erly in position. The use of air condi-
tioning with the air filter removed
may cause deteriorated dustproof per-
formance and then affect air condi-
tioning performance.
2003 MY COROLLA MATRIX_U (OM12767U)