Page 201 of 1082

07-4
2. MAINTENANCE
1) Level Check
Park the vehicle on a level ground and apply the parking brake. Stop the engine and wait more than 5
minutes.
Pull out the dipstick and wipe it with a clean cloth. Reinsert it all the way.
Pull out it again and check the oil level.
The oil level should be between the maximum (Max) mark and minimum (Min) mark on the oil dipstick.
Oil should be replenished before the level goes below the minimum mark. -
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Operating vehicle with insufficient amount of oil can damage the engine. Make sure the
engine oil level is correct and add oil if necessary.
2) Replenishment
If the level gets to the lower point, open the filler cap on top of the cylinder block and add the genuine oil
without exceeding the level of the upper mark.
Recheck the oil level after 5 minutes.
Regularly check the engine oil level and add Ssangyong genuine engine oil if necessary.
Clean the dipstick with clean cloth so that any foreign materials cannot get into the engine.
The oil should not go above the upper mark on the dipstick.
The engine oil may be consumed more if the engine is new. -
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- Engine oil filler
Engine oil dipstick
Page 202 of 1082
07-50000-00
1. SYSTEM DESCRIPTION
1) Overview
The lubrication system supplies oil to each lubrication section to prevent friction and wear and to remove
heat from the friction part. As the engine runs, frictional heat is generated on each lubrication section. If
this condition persists, the bearing can be burned and stuck.
In other words, it creates an oil film on each sliding surface to convert solid friction to liquid friction in
order to minimize wear and prevent temperature increasing on the friction part.
For the D20DTF engine with no oil pressure switch, the engine ECU receives the low engine oil level
signal from the oil level sensor and communicates with the instrument cluster through the CAN
communication to turn on the warning lamp.
2) Component
Oil level sensorEngine oil dipstick
Oil panOil pumpOil filter module
Oil cooler
Page 203 of 1082
07-6
3) Oil Filter Module
The oil filter module consists of lubrication system, cooling system and some mechanical devices as
below.
System Components
Supplementary devices Power steering pump (HPS), Alternator, A/C compressor
Belt drive Belt tensioner, Idle pulley
Cooling Water pump, Thermostat, Cooler housing and Pipes
Lubrication Oil filter, Oil cooler (except coolant pipes)
Page 204 of 1082
07-70000-00
1) Operation Flow
2. OPERATING PROCESS
Page 205 of 1082
07-8
3. LUBRICATION
1)Anti-friction
The oil makes a thin film on the surface of sliding components to reduce the wear due to friction.
2)Cooling
The friction makes the heat on the components. The oil absorbs the heat and radiates it or cools it down.
3) Sealing
The piston ring on the piston seals the cylinder. The oil gets into the clearance in piston ring to secure
the sealing for compression pressure and combustion gas.
4) Anti-corrosion
The oil generates the thin film on the surface of components to prevent the material from contacting with
air, water and corrosive gas.
5) Cleaning
The oil transfers the residue of material due to friction, oxidized substance, and carbonized substance
while circulating in the engine by oil pump.
Page 206 of 1082
08-30000-00
1. SPECIFICATION
Description Specification
Cooling system Type Water cooling, forced circulation
Coolant Capacity 11.3L
RadiatorCore size740W X 380H X 27t (over 281,200㎣)
Flow type Cross flow
Min. cooling capacity over 68,000kcal/h
AntifreezeType Long life coolant
Mixing ratio
(water:antifreeze)50 : 50
Cooling fan moduleType Electric
Capacity220W (Ø360) + 150W (Ø360)
Control type Series: low speed, Parallel: high speed
Coolant reservoirCapacity over 2.2L
Circulation Closed roof type
Pressure cap Screw type, 1.4bar
Vacuum valve Screw type, 1.4bar
ThermostatType Wax pallet type
Opening temperature
90℃
Fully open temperature
100℃
Valve lift 8mm
Page 207 of 1082

08-4
2. INSPECTION
Possible Cause Action
Coolant level
is too low- Leak from the radiator
- Leak from the auxiliary reservoir
- Leak from the heater core- Replace the radiator
- Replace the auxiliary reservoir
- Replace the heater
- Leak from the coolant hose connections
- Damaged coolant hose- Reconnect the hose or replace
the clamp
- Replace the hose
- Leak from the water pump gasket
- Leak from the water pump internal seal- Replace the gasket
- Replace the water pump
- Leak from the water inlet cap
- Leak from the thermostat housing- Replace the water inlet cap
gasket
- Replace the thermostat sealing
- Incorrect tightening torque of the
cylinder head bolts
- Damaged cylinder head gasket- Tighten the bolts to the specified
torque
- Replace 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 auxiliary reservoir or tank cap- Replace the thermostat
- Replace the water pump
- Replace the radiator
- Replace the auxiliary reservoir
or tank cap
- Cracks on the cylinder block or cylinder
head
- Clogged coolant passages in the
cylinder block or cylinder head- Replace 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 - Replace 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
Page 208 of 1082
08-50000-00
1) Coolant Level Check
Park the vehicle on level ground and apply the parking brake. Stop the engine and wait until it is
cooled down.
The coolant level should be between the MAX and MIN mark on the coolant reservoir.
Check the coolant level. If the level is below the “MIN” mark, immediately add coolant. 1.
2.
Scalding hot coolant and steam could be blown out under pressure, which could cause serious
injury. Never remove the coolant reservoir cap when the engine and radiator are hot.
Avoid any direct contact of the coolant to the painted body of the vehicle. -
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MAX
MIN