2012 SSANGYONG NEW REXTON coolant

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1. COMPONENTS
1. E-EGR valve: Controlling the EGR valve electrically and sends the valve location signal to ECU
(vacuum modulator control has been deleted).
2. EGR cooler:
VGT turbochargerIntake manifold
Turbocharger intercooler
(intake air)
EGR gas (from EG
R
cooler)
E-EGR
valve
Exhaust manifoldE-EGR
valveCoolant
To intake
manifold
EGR cooler
EGR pipe
E-EGR valveDecreasing EGR gas (NOx) efficiently by cooling the EGR gas and let it flow to the
intake manifold. The components of the exhaust system consist of:
Throttle body
Exhaust manifold

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PWM Fan Assembly
Water Pump
Port to EGR coolerCoolant Port
EGR Cooler
PWM fan unit
Fan Flap doorFrom coolant port
To water pump
Radiator
1. LAYOUT OF COOLING SYSTEM
Coolant reservoir

1. COMPARISON IN COOLING SYSTEM FOR EACH ENGINE
For the D20DT (EURO4) engine, the cooling system is equipped with E-EGR cooler and the water pump
which its capacity is improved according to the additional coolant line in the cylinder block.

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Coolant Flow in Engine
2. SCHEMATIC DIAGRAM
Cylinder block side
Cylinder head side
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2. OPERATION
Glow plug is installed in the cylinder head. It enhances the cold starting performance and reduces the
exhaust gas during cold starting.
1. Pre-heating
2. Post-heating during engine running If normal communication with the ECU is established 2 seconds after the power is supplied to the IGN
terminal from the battery, the ECU supplies the battery voltage to glow plugs.
The post-heating controlled by ECU begins its operation after engine start The time for pre-heating is controlled by the ECU. -
The time for post-heating controlled by the ECU starts from engine start. This improves the idling
conditions and reduces the emission and noise. -
2) System Check
Glow Plug
Forced Shut-off of Relay
Check for short in each glow plug
Check for open due to over-voltage in each glow plug
Check for open to ground in glow plug -
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When the glow plug circuit is open to ground. -
1) Operation
Pre-
heatingCoolant
temperature
Operating time 31s 22s 19s 17s 14s 0s 0s
Operating
conditions- IGN: ON
- B+: below 15.2 VStop
conditions- Time-out
- IGN: OFF
- when engine cranking
Post-
heatingCoolant
temperature
Operating time 115s 80s 30s 19s 11s 11s 0s
Operating
conditions- after engine start Stop
conditions-Time-out
- Torque: 190/170Nm
- rpm: 2100/2050

2. MAJOR COMPONENTS
Front view
Vacuum pump
Camshaft position sensor
Oil filter assembly
Power steering pump pulley
Oil pressure switch
Idler pulley No. 2
Water pump pulley
Alternator pulley
Auto tensioner
Idler pulley No. 1
A/C compressor pulley
Rear view
E-EGR valve
Fuel temperature sensor
Fuel HP pump assembly
Coolant temperature sensor
IMV valve Crankshaft position sensor
Isolation damper

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Right view
Front exhaust gas temperature
sensor
Oil dipstick tube &
gauge assembly
E-VGT actuator
E-VGT turbocharger
Coolant screw plug
Oil drain plug
Left view
Thermostat assembly
Variable swirl valve assembly
E-EGR valve
E-EGR solenoid valve
EGR cooler
Electronic throttle body
Oil cooler assembly

3. ENGINE COMPARTMENT LAYOUT
Do not work on the engine compartment while the engine, radiator, exhaust manifold, muffler or
catalytic converter is hot. Always turn the engine off and allow it to cool before starting the
maintenance.
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. -
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Power steering fluid
reservoirBrake fluid reservoir
Fuse & relay
Engine oil dipstick
gaugeWasher fluid
reservoir cap Engine oil filler cap
Air cleaner
Operating vehicle with insuffi cient amount of oil can damage the engine. Make sure the engine oil
level is correct and add oil if necessary.
Coolant reservoir
Battery