Lexus SC 430 2006 Owner's Manual page 240

Changing interval
■
Inspect and replace the air conditioning filter according to the maintenance sched-
ule. In dusty areas or areas with heavy traffic flow, such as inner city or desert areas,
early replacement may be required. (For scheduled maintenance information,
please refer to the "Owner' s Manual Supplement/Scheduled Maintenance".)
If air flow decreases dramatically
■
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
When using the air conditioning system
■
Use of the system with the air filter removed or improperly installed could result in a
malfunction.
Make sure that a filter is always installed.
Do not wash or air-blow the filter
■
Do not wash or air-blow the filter or it may cause the system to malfunction. Always
replace dirty filters.
4-3. Do-it-yourself maintenance
Filter
1
Filter case
2
Remove the air conditioning filter
from the filter case and replace it
with a new one.
The  UP marks shown on the filter
and the filter case should be point-
ing up.
4
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