KIA Sorento (2009) - Manual (Page 294)

Maintenance
22 7
AIR CLEANER
Element replacement
Have the air cleaner element checked
and replaced in accordance with the
maintenance schedule.
✽ ✽ NOTICE
Do not drive with the air cleaner
removed; this will result in excessive
engine wear.
OBL076006N
CAUTION - Engine
Driving without an air cleaner
encourages backfiring, which could
cause a fire in the engine compart-
ment.