Kia 2015 soul Owner's Manual page 456

Maintenance
Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extreme-
ly dusty or sandy areas, replace the
element more often than the usual
recommended intervals. (Refer to
"Maintenance under severe usage
conditions" in this chapter.)
7 36
CAUTION
- Air filter main-
tenance
• Do not drive with the air clean-
er removed; this will result in
excessive engine wear.
• When removing the air cleaner
filter, be careful that dust or
dirt does not enter the air
intake, or damage may result.
• Use a Kia genuine part. Use of
non-genuine parts could dam-
age the air flow sensor.