2014 KIA Optima 50 B+

733
Maintenance
Turn the engine off and wait until it
cools down. Use care when remov-
ing the radiator cap. Wrap a thick
towel around it, and turn it counter-
clockwise slowly to the first stop.
Step back while the pressure is
released from the cooling system.
When you are sure all the pressure
has been released, press down on
the cap, using a thick towel, and con-
tinue turning counterclockwise to
remove it.Changing the coolant
Have the coolant changed by an
authorized Kia dealer according to
the Maintenance Schedule at the
beginning of this chapter.
Put a thick cloth or fabric around the
radiator cap before refilling the
coolant in order to prevent the
coolant from overflowing into engine
parts such as the alternator.CAUTION- Removingradiator cap
Never attempt toremove the radiatorcap while the engineis operating or hot.Doing so might leadto cooling system andengine damage.

Maintenance
34
7
BRAKE FLUID
Checking the brake fluid level
Check the fluid level in the reservoir
periodically. The fluid level should be
between MAX and MIN marks on the
side of the reservoir.
Before removing the reservoir cap
and adding brake fluid, clean the
area around the reservoir cap thor-
oughly to prevent brake fluid contam-
ination. If the level is low, add fluid to the
MAX level. The level will fall with
accumulated mileage. This is a nor-
mal condition associated with the
wear of the brake linings.
If the fluid level is excessively low,
have the brake/clutch* system
checked by an authorized Kia dealer.
Use only the specified brake fluid.
(Refer to “Recommended lubricantsand capacities” in chapter 8.)
Never mix different types of fluid.
In the event the brake system
requires frequent additions of fluid,
the vehicle should be inspected by
an authorized Kia dealer.
When changing and adding brake
fluid, handle it carefully. Do not let it
come in contact with your eyes. If
brake fluid should come in contact
with your eyes, immediately flush
them with a large quantity of fresh
tap water. Have your eyes examined
by a doctor as soon as possible.
Brake fluid, which has been exposed
to open air for an extended time
should never be used as its quality
cannot be guaranteed. It should be
disposed of properly.
CAUTION - Brake fluid
Do not allow brake fluid to con-tact the vehicle's body paint, aspaint damage will result.
CAUTION - Proper fluid
Only use brake fluid in brakesystem. Small amounts ofimproper fluids (such as engineoil) can cause damage to thebrake system.
OTF070008

735
Maintenance
WASHER FLUID
Checking the washer fluid
level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
WARNING - Windshield
fluid
Do not drink the windshield
washer fluid. The windshield
washer fluid is poisonous to
humans and animals.
WARNING - Flammable
fluid
Do not allow the washer fluid to
come in contact with open
flames or sparks. The wind-
shield washer fluid reservoir is
flammable under certain cir-
cumstances. This can result in a
fire.
OTF074010

Maintenance
36
7
PARKING BRAKE
Checking the parking brake
Ty p e A
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 20 kg (44 lb,
196 N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade.
Type B
Check the stroke of the parking
brake by counting the number of
“clicks’’ heard while fully applying it
from the released position. Also, the
parking brake alone should securely
hold the vehicle on a fairly steep
grade. If the stroke is more or less
than specified, have the parking
brake adjusted by an authorized Kia
dealer.
Stroke : 6~8 “clicks’’ at a force of
20kg (44 lbs, 196 N).OTF050015
■Type A
OTF050014
■Type B

737
Maintenance
Filter replacement
It must be replaced when necessary,
and should not be washed.
You can clean the filter when inspect-
ing the air cleaner element.
Clean the filter by using compressed
air.1. Loosen the air cleaner cover
attaching clips and open the cover. 2. Wipe the inside of the air cleaner.
3. Replace the air cleaner filter.
4. Lock the cover with the cover
attaching clips.
AIR CLEANER
OTF070011
OTF070012OYF079013

Maintenance
38
7
Replace the filter according to the
Maintenance Schedule.
If the vehicle is operated in extreme-
ly dusty or sandy areas, replace theelement more often than the usualrecommended intervals. (Refer to“Maintenance under severe usageconditions” in this chapter.)
CAUTION - Air filter
maintenance
Do not drive with the air clean- er removed; this will result inexcessive engine wear.
When removing the air cleaner filter, be careful that dust ordirt does not enter the airintake, or damage may result.
Use a Kia genuine part. Use of nongenuine part could dam-age the air flow sensor.

739
Maintenance
CLIMATE CONTROL AIR FILTER (IF EQUIPPED)
Filter inspection
The climate control air filter should
be replaced according to the
Maintenance Schedule. If the vehicle
is operated in severely air-polluted
cities or on dusty rough roads for a
long period, it should be inspected
more frequently and replaced earlier.
When you replace the climate control
air filter, replace it performing the fol-
lowing procedure, and be careful to
avoid damaging other components.
Filter replacement
1. Open the glove box.2. Remove the climate control air fil-ter cover while pressing the lock
on the right side of the cover.
3. Push the right side of the climate control air filter and pull the cli-
mate control air filter out.
OTF070014
OTF070015
OTF070013

Maintenance
40
7
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.
OMG079027