Ford Galaxy / Ford S-MAX. Manual — part 287

Turbocharger variable vane electrical actuator

TC

Charging of the engine takes place via the

TC

from Garrett with variable turbine geometry.

The turbocharger variable vanes are adjusted by a turbocharger variable vane electrical actuator.

The shaft of the

TC

is lubricated and/or cooled with engine oil via a supply line.

The

TC

can reach a shaft speed of up to 200,000 rpm during operation.

Description

Charge pressure (in bar)

Engine Speed

A charge pressure of almost 1.7 bar is achieved depending on the engine speed and engine load

EGR

system

Overview of the components

1

2

Item

Connecting

rod

retaining
bolts

b

Description

Connecting pipe leading from

EGR

valve to intake manifold

Throttle body

Intake manifold

Exhaust Manifolds

Coolant inlet port

EGR

radiator

Coolant outlet connection

EGR

valve

Diesel engines work with a large surplus of air. The high proportion of

O2 (oxygen)

produces a high proportion of

(oxides of nitrogen)

during combustion.

Via the

EGR

system, part of the exhaust gas is routed back into the fresh air flow.

The proportion of recirculated exhaust gas no longer directly participates in the combustion. This significantly reduces the
proportion of

NOX

.

The exhaust gas recirculation rate depends to a large extent on the engine speed and engine load. The exhaust gas can be
recirculated particularly efficiently in the lower partial load range. Recirculation rates of over 60% are possible under
favourable conditions.

EGR

valve and radiator

Item

1

2

3

4

5

6

7

8

Description

EGR

valve

EGR

radiator

The

EGR

valve consists of a

DC (direct current)

motor and a position sensor.

The

EGR

valve and the

EGR

radiator are bolted together.

The

EGR

radiator is connected to the coolant circuit.

The

EGR

cooling reduces the

NOX

emission.

Accessory drive

Description

Power steering pump

Generator.

Air conditioning compressor

Idler pulley

Mass damper

Automatic accessory drive belt tensioner

Item

1

2

Item

1

2

3

4

5

6

Engine - 2.2L Duratorq-TDCi
(129kW/175PS) - DW - Engine

S-MAX/Galaxy 2006.5 (02/2006-)

Print

Diagnosis and Testing

Special Tool(s)

General Equipment

Materials

Specification

WSK-M2G349-A7

Inspection and Verification

1. 1. Verify the customer concern.

2. 2. Visually inspect for obvious signs of mechanical or electrical damage.

3. 3. If an obvious cause for an observed or reported concern is found, correct the cause

(if possible) before proceeding to the next step

4. 4. If the cause is not visually evident, verify the symptom and refer to the Symptom

Chart.

Visual Inspection Chart

Symptom Chart

Compression Test Adapter

303-1414

Ford diagnostic equipment

Name

Adhesive - Loctite 243

Mechanical

Electrical

Coolant leaks
Oil leaks
Fuel system leaks
Visibly damaged or worn parts
Loose or missing nuts or bolts

Fuse(s)
Loose or corroded connector(s)
Control module
Damaged or worn switch(es)

Symptom

Possible Sources

Action

Loss of oil

Oil leaks on components

that are either coated in oil
themselves or on
components local to them.

*

CHECK for evidence of oil leaks on

components. Use an ultraviolet (UV) leak
tester if an oil leak is not evident.
INSTALL new gaskets or components as
required.

*

Internal or external leak at

the oil cooler.

*

CHECK the coolant expansion tank for a

film of oil on the coolant surface. INSTALL
a new oil cooler or oil cooler gasket.

*

Leak at the crankshaft seal.

*

INSTALL a new crankshaft seal.

*

Leaks from oil carrying

components or basic
engine.

*

CHECK for cracks in oil-carrying

components of the basic engine by means
of a UV leak test. INSTALL new
components or seals as necessary.

*

Oil consumption

Use of the wrong type of

engine oil.

*

DETERMINE the last type of engine oil

used and compare with the specification.
Change the engine oil to the specification.

*