SsangYong Rodius (2013 year). Service manual — part 68

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.

08-3

1520-00

1. SPECIFICATION

Description

Specification

Cooling system

Type

Water cooling, forced circulation

Coolant

Capacity

approx. 11.5 L

Radiator

Core size

589W x 538H x 27T (over 3,170 cm²)

Flow type

Cross flow

Antifreeze

Type

SYC1025 (Long life coolant)

Mixing ratio

(water:antifreeze)

50 : 50

Cooling fan module

Motor type

DC motor

Motor weight

2.14 kg

Control type

PWM type

Fan runout

3 mm

Coolant reservoir

Capacity

over 1.5 L

Circulation

Closed roof type

Pressure cap

Screw type

Pressure

1.4bar

Thermostat

Type

Wax pallet type

Opening temperature

90 ℃

Fully open temperature

100℃

Valve lift

8mm

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

08-5

1520-00

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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