SsangYong: Engine Euro 4. Manual - part 31

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

11

2820

PRE - HEATING 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

6. REMOVAL AND INSTALLATION OF AQGS UNIT

2. Unscrew two mounting nuts and remove the AQGS unit.

3. Install in the reverse order of removal.

AQGS Unit

Removal and Installation

Ú

Ú

Ú

Ú

Ú Preceding Work: Disconnect the negative battery cable.

1. Disconnect the AQGS unit connector.

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

12

1412

PRE - HEATING SYSTEM

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

<NGK glow plug>

Insulator color: Red

Tip diameter: 

φ 4.4 mm

Glow plug resistance: 350 m

Ω

1. OVERVIEW

The glow plug for the D27DTP (POWER UP) engine is different from the one for the D27DT engine in terms of the
temperature limit and the control steps. These two glow plugs are not compatible.

Also, there are two type of glow plugs for D27DT engine and they are not compatible either.

When replacing the glow plug, disconnect the connector, check the insulator color and install a new one with the
same insulator color.

The followings are the colors of insulators according to the engine specifications.

Glow Plugs by Engine Specifications

GLOW PLUG

<NGK Glow plug>
Insulator color: Yellow
Tip diameter: 

φ 3.5 mm

Glow plug  resistance:
1.4 W ± 0.3 

Ω

<BERU Glow plug>
Insulator color: Green
Tip diameter: 

φ  4 mm

Glow plug  resistance:
680 mW ± 110 m

Ω

Yellow

Green

Insulator color

Red

Yellow

Green

D27DTP

D27DT

For D27DTP
(POWER UP)
engine

For D27DT
engine

Appearance

D27DTP

D27DT

D27DTP (POWER UP) Engine

D27DT Engine

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

13

1412

PRE - HEATING 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

2. REMOVAL AND INSTALLATION OF GLOW PLUG

A. Clean the glow plug mounting area with carbon cleaner

and blow out the area with compressed air.

B. Check the color of the insulator.

Preparations for Replacing Glow Plug

Torque wrench, Air gun (small), Carbon
cleaner (Product name: IPO CHOKE &
CARBURATOR CLEANER, Model name:
PRO NO 5007, Manufacturer: Sunbo),
Engine oil, Glow plug wrench (special
service tool), Long nose pliers

Preparations for Replacing Glow Plug

Carbon
cleaner

Torque wrench (Max. 25 Nm)

Glow plug wrench - special service tool (10 mm)
Part No.: Y99220132B

The color mark on insulator surface may be invisible due to the carbon contamination. To check the
color easily, disconnect the connector and clean the glow plug mounting area with carbon cleaner.

Wait for a while and blow out the area with a compressed air.

Removal and Installation

Ú

Ú

Ú

Ú

Ú Preceding Work: Disconnect the negative battery cable.

1. Disconnect the glow plug cable with long nose pliers and clean the glow mounting area with the compressed air

(using air gun).

* The preceding work is as same as other removal instruction.

Disconnecting glow plug cable

Keep clean

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

14

1412

PRE - HEATING SYSTEM

D27DTP/D27DT (EU4)  SM - 2006.08

D27DTP/D27DT (EU4)

2. Spray the carbon cleaner into the gap between glow plug and cylinder head and wait for 10 minutes. Remove the

dirt and foreign materials completely with the compressed air (using air gun).

3. To avoid damage, apply the engine oil into the gap

between glow plug and cylinder head and wait for 5
minutes.

4. Install the glow plug wrench and remove the glow plug

with torque wrench.

(tightening torque: 15 ± 3 Nm)

5. Thoroughly remove the foreign materials from the glow

plug hole. If needed, use the carbon cleaner or air
gun.

Glow plug wrench - special service tool (10 mm)
Part No.: Y99220132B

• At this moment, check the color mark on insulator surface and bring the same version of glow plug for

replacement.

NOTICE

• To prevent the preglow plug from breaking, care-

fully turn the wrench with the torque below 20 Nm.

• Never use the air impact tool or other tools.

PRECAUTIONS FOR TORQUE WRENCH