SsangYong: Engine Euro 4. Manual — part 35
COOLING SYSTEM
2112 / 1520 / 6820
TABLE OF CONTENTS
COOLING SYSTEM . . . . . . . . . . . . 2
1. Comparison in cooling system for each engine . . . . 2
WATER PUMP . . . . . . . . . . . . . . 4
1. Overview . . . . . . . . . . . . . . . . . . . . 4
A/C REFRIGERANT PRESSURE SENSOR
(D27DTP) AND TRIPLE PRESSURE SWITCH
(D27DT) . . . . . . . . . . . . . . . . ... 6
1. A/C triple pressure switch: for D27DT engine . . . . ... 6
2. A/C pressure switch: for D27DTP (POWER UP) engine .. 6
3. New DTCs for A/C refrigerant sensor . . . . . . . . 8
4. Removal and installation of A/C refrigerant pressure
sensor (receiver drier) . . . . . . . . . . . . . . 9
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
2
2112
COOLING SYSTEM
D27DTP/D27DT (EU4) SM - 2006.08
D27DTP/D27DT (EU4)
1. COMPARISON IN COOLING SYSTEM FOR EACH ENGINE
For the D27DTP (POWER UP) 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. For the D27DT engine,
the cooling system uses the fan clutch.
Cooling System for D27DTP (POWER UP) Engine
COOLING SYSTEM
EGR Cooler Assembly
Water Pump Assembly
Coolant Port
Heater
Water
inlet pipe
heater hose
Oil cooler
inlet hose
heater hose
Reservoir tank
main hose
EGR cooler
outlet hose
Radiator
lower hose
Reservoir de-
aeration hose
Radiator assembly
From cylinder
head
Cylinder head
coolant hose
EGR cooler
inlet hose
Radiator
upper hose
To cylinder
block
Coolant Reservoir Tank
Engine Oil Cooler
Cylinder
head block
To heater
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
3
2112
COOLING SYSTEM
D27DTP/D27DT (EU4) SM - 2006.08
D27DTP/D27DT (EU4)
ENGINE
FUEL
I
N
T
AKE
EXHAUST
PRE-HEA
TING
LUB
COOLING
SWITCHABLE
ECU
DIAGNOSIS
D27DTP (POWER UP) Engine
Coolant Port
Water Pump
Radiator
D27DT Engine
Coolant Port
Water Pump
Comparison
EGR Cooler
EGR cooler
connection port
Coolant port
Water pump
Fan shroud
Electric fan
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
4
1520
COOLING SYSTEM
D27DTP/D27DT (EU4) SM - 2006.08
D27DTP/D27DT (EU4)
1. OVERVIEW
The belt-driven centrifugal water pump consists of an impeller, a drive shaft, and a belt pulley. The impeller is
supported by a completely sealed bearing. The water pump is serviced as an assembly and, therefore, cannot be
disassembled.
The capacity of water pump has been increased due to the EGR cooler, increased engine power and additional
coolant port in the cylinder block.
For D27DTP (POWER UP) Engine
For D27DT Engine
Note
* Structure of water pump for D27DTP (POWER UP) engine
Water pump
housing
Water pump
Thermostat
Start to open: 0.1 mm at 85°C
Fully opened: 8 mm at 100°C
Thermostat
housing
WATER PUMP
Port to EGR cooler
From
reservoir
tank
From EGR
cooler
From
radiator
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