Toyota COROLLA Owner's Manual page 413

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Replacement method
Remove the air conditioning fil-
ter and replace it with a new
one.
The "UP" marks shown on the
filter should be pointing up.
■
Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to the
"Warranty and Service Booklet".)
■
If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■
When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
7-3. Do-it-yourself maintenance
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