Page 159 of 796
01-150000-00
7. CODING AND INITIALIZATION
1) Engine Variant Coding
Unit Selection Description
PTC auxiliary heater NO For PTC auxiliary heaterequipped vehicle,
select"YES".
YES
Glow plug Relay (K-line) Select "AQGS".
AQGS (CAN)
Transmission MT 5-speed Select the appropriate system.
MT 6-speed
AT 5-speed (DC 5AT)
AT 6-speed (DSI 6AT)
AT 7-speed (DC 7AT)
Pressure sensor
forA/C refrigerantNOSelect “Refrigerant pressure sensor”.
Refrigerant Pressure Sensor
Immobilizer NO Select "YES" if the vehicle has
immobilizer.
YES
Vehicle speed input
typeCAN Select "CAN" if the vehicle has ABS or
ESP
WIRE
Cooling fan Relay Select "PWM".
PWM
Auto cruise NO Select "YES" if the vehicle hascruise
control.
YES
Engine level control NO Select "NO".
YES
G-sensor NOABS: Select “NO”.
4WD ABS or ESP: Select “YES”.
YES
SMART key NO Select "NO".
YES
Page 167 of 796

02-8
4. CHECK AND INSPECTION
1) Cylinder
(1) Compression pressure test
Specified value ▶
Compression ratio16.5 : 1
Test conditionat normal operating temperature (80˚C)
Compression
pressureStandard32 bar
Minimum18 bar
Differential limit between cylindersMaximum 3 bar
The compression pressure test is to check the conditions of internal components (piston, piston ring,
intake and exhaust vale, cylinder head gasket). This test provides current engine operating status.
Measurement ▶
Warm the engine up to normal operating temperature (80°C).
Disconnect the fuel rail pressure sensor connector to cut off the fuel injection.
Remove the air cleaner duct and glow plugs. -
-
-
Place the diagram sheet to compression
pressure tester and install it into the plug
hole. 1. Before cranking the engine, make sure that the test wiring, tools and persons are keeping away
from moving components of engine (e.g., belt and cooling fan).
Park the vehicle on the level ground and apply the parking brake.
Do not allow anybody to be in front of the vehicle. -
-
-
Page 186 of 796
02-270000-00
Intake/Exhaust Camshafts
2) Camshaft
(1) Overview
Hollow type camshaft contains cam, octagon cam, HP pump gear and intake/exhaust gears.
Camshaft operates the intake/exhaust valves, vacuum pump and HP pump, and transfers the engine
oil to vacuum pump through the internal oil passage.
(2) Location
Exhaust CamshaftExhaust Camshaft
Thrust journalIntake Camshaft
Closed flow type water jacket (improving cooling performance) ▶
Octagon cam
(for tooling)
Connected to
vacuum pump
Page 200 of 796
02-410000-00
1) Piston
(1) Overview
Piston assembly contains piston, #1 ring, #2
ring, oil ring, piston pin and snap ring. The
expansion energy from engine is transferred to
the crankshaft through connecting rod to
convert the linear movement to rotating energy.
(2) Layout
#1 ring
Oil ring
Snap ring
#2 ring
Material:
B2+
Skirt coating:
MoS2
Piston cooling gallery
for connecting rod
Wide bawl type (CR 16.5)
Cooling jet
Page 234 of 796
04-31719-00
1. SPECIFICATIONS
Shorten the service interval under severe conditions such as driving on a dusty road or off-road. *
Unit Description Specification
Air cleaner elementFilter type Dry, filter element
Initial resistance Max. 300 mmAq
Service interval EU: Change every 20,000 km
GEN: Change every 15,000 km
Air cleaner assemblyWeight 2.36kg
Operating temperature-30 ~ 100℃
IntercoolerRadiation over 13,000 Kcal
Pressure loss at turbocharger below 90 mmHg
Cooling type Air cooled type
Core size 450W*130H*70T
Core type C/FIN
Page 271 of 796

07-6
2. FUNCTIONS OF LUBRICATION
1) Lubrication
It creates a viscous barrier between moving parts that reduces friction, which means less heat and
longer life for those parts. As a lubricant, oil must maintain a protective film to prevent metal-to-metal
contact. It must be fluid enough to allow easy starting and to circulate quickly through the engine, yet
remain thick enough at higher operating temperatures and speeds to provide adequate lubrication.
2) Cooling
Combustion heat and friction energy must be removed from the engine in order to prevent its
overheating. Most of heat energy is taken by the engine oil.
Clean oil passages, proper viscosity and low contamination provide sufficient flow rate of the engine oil
and effective cooling.
3) Sealing
It helps to seal the space between the pistons and the cylinder walls so that compression is more
effective and power is not lost during combustion.
4) Anti-corrosion
As a corrosion inhibitor, oil coats internal engine parts to prevent surface rust on the inside of the
engine which can be caused by blow-by products and water formed in combustion. It must also be
capable of neutralizing the acids that are formed by combustion blow-by and oil oxidation at high
temperatures.
5) Cleaning
The small particles of dirt or other contaminants are suspended in oil and carried away to be filtered
out. As a detergent, engine oil must be able to gather and suspend dirt and other contaminants until
the oil can leave them as it passes through the filter and returns to the internal engine environment.
Page 272 of 796
08-31520-00
1. SPECIFICATION
Description Specification
Cooling system Type Water cooling, forced circulation
Coolant Capacity approx. 11.5 L
RadiatorCore size589W x 538H x 27T (over 3,170 cm²)
Flow type Cross flow
AntifreezeType SYC1025 (Long life coolant)
Mixing ratio
(water:antifreeze)50 : 50
Cooling fan moduleMotor type DC motor
Motor weight 2.14 kg
Control type PWM type
Fan runout 3 mm
Coolant reservoirCapacity over 1.5 L
Circulation Closed roof type
Pressure cap Screw type
Pressure 1.4bar
ThermostatType Wax pallet type
Opening temperature90 ℃
Fully open temperature
100℃
Valve lift 8mm
Page 273 of 796

08-4
2. INSPECTION
Possible Cause Action
Coolant level
is
too low- Leak from the radiator
- Leak from the coolant auxiliary tank
- Leak from the heater core- Change the radiator
- Change the coolant auxiliary tank
- Change the heater
- Leak from the coolant hose
connections
- Damaged coolant hose - Reconnect the hose or replace
the clamp
- Change the hose
- Leak from the water pump gasket
- Leak from the water pump internal
seal- Change the gasket
- Change the water pump
- Leak from the water inlet cap
- Leak from the thermostat housing- Change the water inlet cap
gasket
- Change the thermostat sealing
- Incorrect tightening torque of the
cylinder head bolts
- Damaged cylinder head gasket- Tighten the bolts to the specified
torque
- Change the cylinder head gasket
Coolant
temperature is
too high- Coolant leakage (Coolant level is low)
- Improper coolant mixture ratio
- Kinked coolant hose- Add coolant
- Check the coolant concentration
(Anti-freeze)
- Repair or replace the hose
- Defective thermostat
- Defective water pump
- Defective radiator
- Defective coolant auxiliary tank or tank
cap- Change the thermostat
- Change the water pump
- Change the radiator
- Change the coolant auxiliary tank
or tank cap
- Cracks on the cylinder block or
cylinder head
- Clogged coolant passages in the
cylinder block or cylinder head- Change cylinder block or cylinder
head
- Clean the coolant passage
- Clogged radiator core - Clean the radiator core
- Improper operation of cooling fan - Replace the cooling fan or repair
the related circuit
- Defective temperature sensor or
faulty wiring- Replace the sensor or repair the
related wiring
Coolant
temperature is
too low- Thermostat is stuck open - Change the thermostat
- Improper operation of cooling fan - Replace the cooling fan or repair
the related circuit
- Defective temperature sensor or faulty
wiring- Replace the sensor or repair the
related wiring