Kia 2016 Optima Owner's Manual page 496

Maintenance
3. Remove the climate control air fil-
ter cover while pressing the lock
on the right side of the cover.
8 36
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4. Replace the climate control air fil-
ter.
5. Reassemble in the reverse order
of disassembly.
When replacing the climate control
air filter install it properly. Otherwise,
the system may produce noise and
the effectiveness of the filter may be
reduced.
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