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