Kia Optima Manual page 354

Then position the wrench as shown
in the drawing and tighten the wheel
nuts. Be sure the socket is seated
completely over the nut. Do not stand
on the wrench handle or use an
extension pipe over the wrench han-
dle.
Go around the wheel tightening
every nut following the numerical
sequence shown in the image until
they are tight. Then double-check
each nut for tightness. After changing
the wheels, have an authorized Kia
dealer tighten the wheel nuts to their
proper torque as soon as possible.
Wheel nut tightening torque:
Steel wheel & aluminium alloy wheel:
9~11 kg.m (65~79 lb.ft)
If you have a tire gauge, remove the
valve cap and check the air pressure.
If the pressure is lower than recom-
mended, drive slowly to the nearest
service station and inflate to the cor-
rect pressure. If it is too high, adjust
it until it is correct. Always reinstall
OTF060007
the valve cap after checking or
adjusting the tire pressure. If the cap
is not replaced, air may leak from the
tire. If you lose a valve cap, buy
another and install it as soon as pos-
sible.
After you have changed wheels,
always secure the flat tire in its place
and return the jack and tools to their
proper storage locations.
What to do in an emergency
CAUTION
- Reusing lug
nuts
Make certain during wheel
removal that the same nuts that
were removed are reinstalled -
or, if replaced, that nuts with
metric threads and the same
chamfer configuration are used.
Your vehicle has metric threads
on the wheel studs and nuts.
Installation of a non-metric
thread nut on a metric stud will
not secure the wheel to the hub
properly and will damage the
stud so that it must be replaced.
Note that most lug nuts do not have
metric threads. Be sure to use
extreme care in checking for thread
style before installing aftermarket lug
nuts or wheels. If in doubt, consult an
authorized Kia dealer.
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