2015 KIA Optima engine

787
Maintenance
Backup light/Tail light (if equipped)
1.Turn off the engine.
2.Open the trunk.
3.Loosen the retaining screw of the trunk lid cover and then remove the
cover. 4.Disconnect the cable and then
remove the nuts by turning the nuts
counter clockwise.
5.Take the light assembly out.
6.Insert a new bulb by inserting it intothe socket.
7.Install the light assembly to the trunk.
8.Reinstall the nuts and connector and then the trunk lid cover by
pushing in the screw.
OTF070033
OTF074052
Backup light
OTF074054
OTF074055
Backup light-1
Backup light-2

Maintenance
88
7
License plate light bulb
replacement
1.Turn off the engine.
2.Open the trunk. 3.Loosen the retaining screw of the
trunk lid cover and then remove the
cover.
4.Take out the light.
5.Insert a new bulb by inserting it into the socket.
6.Reinstall the trunk lid cover by pushing in the screw.
High mounted stop light
replacement (if equipped)
OTF070036
OTF070033
OTF074037

789
Maintenance
High mounted bulb
1. Turn off the engine.
2. Pull up the seat cushion.
3. Remove the nuts under the seatconnecting each side of the seat.
And take each side seat out. 4.Type A
Fold the seat back by pulling out
the lock release knob (1). Fold the
seatback forward and down firmly.
(if equipped)
Type B
Push the seat back up. The seat
back is connected to the hook
attached to package tray. (if
equipped)
OTF074057N
OTF074058N
OTF030020
OTFH070074N
OTF030021
■Type B
■Type A

793
Maintenance
Waxing
Wax the vehicle when water will no
longer bead on the paint.
Always wash and dry the vehicle
before waxing. Use a good quality
liquid or paste wax, and follow the
manufacturer’s instructions. Wax all
metal trim to protect it and to main-
tain its luster.
Removing oil, tar, and similar materi-
als with a spot remover will usually
strip the wax from the finish. Be sure
to re-wax these areas even if the rest
of the vehicle does not yet need wax-
ing.
CAUTION - Wetting engine
Water washing in the enginecompartment including highpressure water washing maycause the failure of electricalcircuits located in the enginecompartment.
Never allow water or other liq- uids to come in contact withelectrical/electronic compo-nents inside the vehicle asthis may damage them.
OJB037800
CAUTION - Drying vehicle
Wiping dust or dirt off the body with a dry cloth willscratch the finish.
Do not use steel wool, abra- sive cleaners, or strong deter-gents containing highly alka-line or caustic agents onchrome-plated or anodizedaluminum parts. This mayresult in damage to the pro-tective coating and cause dis-coloration or paint deteriora-tion.

Maintenance
100
7
Canister
Fuel vapors generated inside the fuel
tank are absorbed and stored in the
onboard canister. When the engine is
running, the fuel vapors absorbed in
the canister are drawn into the surge
tank through the purge control sole-
noid valve.
Purge Control Solenoid Valve
(PCSV)
The purge control solenoid valve is
controlled by the Engine Control
Module (ECM); when the engine
coolant temperature is low during
idling, the PCSV closes so that evap-
orated fuel is not taken into the
engine. After the engine warms up
during ordinary driving, the PCSV
opens to introduce evaporated fuel to
the engine.
3. Exhaust emission control system
The Exhaust Emission Control
System is a highly effective system
which controls exhaust emissions
while maintaining good vehicle per-
formance.
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could
affect its performance, safety or
durability and may even violate gov-
ernmental safety and emissions reg-
ulations.
In addition, damage or performance
problems resulting from any modifi-
cation may not be covered under
warranty.
If you use unauthorized electronic
devices, it may cause the vehicle to
operate abnormally, wire damage,
battery discharge and fire. For your
safety, do not use unauthorized
electronic devices.
Engine exhaust gas precautions
(carbon monoxide)
Carbon monoxide can be present with other exhaust fumes.
Therefore, if you smell exhaust
fumes of any kind inside your vehi-
cle, have it inspected and repaired
immediately. If you ever suspect
exhaust fumes are coming into
your vehicle, drive it only with all
the windows fully open. Have your
vehicle checked and repaired
immediately.
WARNING - Exhaust
Engine exhaust gases contain
carbon monoxide (CO). Though
colorless and odorless, it is
dangerous and could be lethal if
inhaled. Follow the instructions
on this page to avoid CO poi-
soning.

7101
Maintenance
Do not operate the engine in con-fined or closed areas (such as
garages) any more than what is
necessary to move the vehicle in or
out of the area.
When the vehicle is stopped in an open area for more than a short
time with the engine running,
adjust the ventilation system (as
needed) to draw outside air into the
vehicle.
Never sit in a parked or stopped vehicle for any extended time with
the engine running.
When the engine stalls or fails to start, excessive attempts to restart
the engine may cause damage to
the emission control system.Operating precautions for catalyt-
ic converters (if equipped)
Your vehicle is equipped with a cat-
alytic converter emission control
device.
Therefore, the following precautions
must be observed: Use only UNLEADED FUEL for
gasoline engines.
Do not operate the vehicle when there are signs of engine malfunc-
tion, such as misfire or a noticeable
loss of performance.
Do not misuse or abuse the engine. Examples of misuse are
coasting with the ignition off and
descending steep grades in gear
with the ignition off.
Do not operate the engine at high idle speed for extended periods (5
minutes or more).
Do not modify or tamper with any part of the engine or emission con-
trol system. All inspections and
adjustments must be made by an
authorized Kia dealer.
Avoid driving with a extremely low fuel level. Running out of fuel could
cause the engine to misfire, dam-
aging the catalytic converter.
Failure to observe these precautions
could result in damage to the catalyt-
ic converter and to your vehicle.
Additionally, such actions could void
your warranties.
WARNING- Fire
Do not park, idle or drive the vehicle over or near flamma-
ble objects, such as grass,
vegetation, paper, leaves, etc.
A hot exhaust system can
ignite flammable items under
your vehicle.
Also, do not remove the heat sink around the exhaust sys-
tem, do not seal the bottom of
the vehicle or do not coat the
vehicle for corrosion control.
It may present a fire risk under
certain conditions.
WARNING- Catalytic
converter
Keep away from the catalytic
converter and exhaust system
while the vehicle is running or
immediately thereafter. The
exhaust and catalytic systems
are very hot and may burn you.

Specifications & Consumer information
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-2
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
8-2
Gross vehicle weight. . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Luggage volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3
Air conditioning system . . . . . . . . . . . . . . . . . . . . . . 8-3
Bulb wattage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-4
Tires and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Recommended lubricants and capacities . . . . . . . 8-6
• Recommended SAE viscosity number. . . . . . . . . . . . . 8-8
Vehicle identification number (VIN) . . . . . . . . . . . 8-9
Vehicle certification label. . . . . . . . . . . . . . . . . . . . . 8-9
Tire specification and pressure label . . . . . . . . . . 8-10
Engine number . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-10
8

28
Specifications & Consumer information
DIMENSIONS
Item2.4 GDI 2.0 T-GDI
Displacement [cc(cu.in)] 2,359 (143.96) 1,998 (121.92)
Bore x Stroke [mm(in)] 88 x 97 mm
(3.46 x 3.82 in) 86 x 86 mm
(3.46 x 3.46 in)
Firing order 1
→ 3 → 4 → 21 → 3 → 4 → 2
No. of cylinders 4, In-line4, In-line
Item mm (in.)
Overall length 4,845 (190.7)
Overall width 1,830 (72.0)
Overall height 1,450 (57.1)
Front tread 1,601 (63.0)*
1/1,595 (62.8)*2/1,591 (62.6)*3
Rear tread1,601 (63.0)*1/1,595 (62.8)*2/1,591 (62.6)*3
Wheelbase 2,795 (110.0)
*1: with R16 tire
*2: with R17 tire
*3: with R18 tire
ENGINE