SsangYong Stavic / SsangYong Rodius (2005 year). Manual — part 130

DI07-11

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

FUEL SYSTEM

DI ENG SM - 2004.9

Fuel Filter Replacement

* Fuel filter change interval: every 30,000 km

* Water separation interval: every 15,000 km max. (same

with engine oil change interval)

* Never reuse the removed fuel filter

Injectors

The fuel injection device is composed of electrical solenoid
valve, needle and nozzle and controlled by engine ECU. The
injector nozzle opens when solenoid valve is activated to di-
rectly inject the fuel into combustion chamber in engine. When
injector nozzle is open, remaining fuel after injection returns
to fuel tank through return line.

High pressure pipe (fuel pipe)

Fuel line transfers high pressure fuel. Accordingly, it is made
of steel to endure intermittent high frequency pressure changes
that occur under maximum system pressure and injection
stops. Injection lines between rail and injectors are all in the
same length; it means the lengths between the rail and each
injector are the same and the differences in length are com-
pensated by each bending.

No.1 and 3 cylinder

No. 5 cylinder

No.2 and 4 cylinder

DI07-12

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

FUEL SYSTEM

DI ENG SM - 2004.9

FUEL TRANSFER LINE

Fuel Filter

Function

Foreign materials in fuel can damage the pump components, transfer valve and injectors. Therefore, the high pressure
direct injection engine must use fuel filter. Otherwise, the operation performance will drop dramatically. And, diesel fuel
may contain water due to condensation by temperature changes and this condensation water can damage the system
by corroding the injection system. Thus, the common rail engine should have function that can drain water periodically.

Fuel filter

Filter volume: 500 ± 25 cm

3

Filtering efficiency

• Particles larger than 3mm > 98 %

• Particles larger than 5mm > 99.8 %

• Particles larger than 15mm > 100 %

Drain plug

Water Sensor

Capacity: 120 cm

3

Warning light ON level: 39 cm

3

to HP pump

from HP pump

to fuel tank

from fuel tank

DI07-13

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

FUEL SYSTEM

DI ENG SM - 2004.9

Change Interval: 30,000 km

Water separation and storage function

• Function: It separates the condensation water from diesel fuel to prevent the water from getting into FIE system, and

results in protection of FIE system. (manual drain)

• Water storage capacity: 120 cc

• Water sensor: light if over 39 cc

• Water drain interval: When changing engine oil or every

20,000 km

Water sensor

It is integrated in the filter and sends signal to ECU when water level reaches at a specified value (over 39 cc) in the filter
to let the driver drain the water.

Fuel De-Waxing – Improving starting performance in cold weather

Due to characteristics of diesel fuel, some of fuel components solidify during cold winter under below a specific tempera-
ture (-15°C). When those symptoms happen, engine may stall; however, some of the fuel (temperature rises due to high
compression) in the HP pump in D27DT engine return to the filter to warm up fuel when temperature is below 50°C by
improving cold start performance during cold winter.

DI07-14

CHANGED BY

EFFECTIVE DATE

AFFECTED VIN

FUEL SYSTEM

DI ENG SM - 2004.9

2. Loosen the bracket bolts and disconnect the hose from

the drain plug.

3. Remove the fuel filter.

4. Install in the reverse order of removal.

5. Press the priming pump until it becomes rigid to deliver

the fuel to the transfer line of HP pump.

1. Disconnect the fuel supply and return hoses.

Removal and Installation

Notice

• Plug the openings of hoses and fuel filter with

sealing caps.

• Ensure that the hoses are connected to correct

positions.