Introduction - ENGINE COOLING

1.2 16v, 1.4 16v

The system consists of the components illustrated in the diagram

1, Water pump

2, Coolant temperature sensor (see 1056)

3, Thermostat

4, Radiator

5, Electric fan

6, Reservoir

7, Water pump rigid inlet pipe

8, Heater unit

1.6 16v

The engine cooling circuit consists of:

• Water pump (1)
• Engine coolant temperature sensor (2) (see 1056)
• Thermostat (3)
• Radiator (4)
• Heater unit (5)
• Reservoir (6)
• Rigid pump water inlet pipe (7)

1.8 16v

The system consists of the components illustrated in the diagram

1, Water pump

2, Coolant temperature sensor (see 1056)

3, Thermostat

4, Radiator

5, Electric fan

6, Reservoir

7, Water pump rigid inlet pipe

8, Heater unit

2.4 20v

Structure

The cooling system is forced circulation with centrifugal pump

The circuit is sealed and consists of the following elements:

• radiant mass (engine cooling)
• recirculation pump
• thermstat
• passenger compartment heating radiator
• connection sleeves

The maximum pressure reached in the engine cooling circuit is 1.4 bar.

The engine cooling system is represented below.

1 - Water pump

2 - Engine coolant temperature sensor Characteristic of working principle 1056B multi-point injection system (mpi)

3 - Thermostat

4 - Radiator

5 - Electric fan

6 - Reservoir

7 - Rigid ipe

8 - Heat exchanger

9 - Heating radiator

1.9 JTD 8v

COOLING SYSTEM

1 - Water pump

2 - Engine coolant temperature sensor Characteristic of working principle 1060G pressure pump electric control

3 - Thermostat

4 - Radiator

5 - Electric fan

6 - Reservoir

7 - Rigid coolant pump intake pipe

8 - Engine oil heat exchanger

9 - Climate control system heater

10 - E.G.R. exhaust gas heat exchanger Characteristic of working principle 1080C exhaust gas recirculation system (e.g.r.)

1.9 JTD 16v

COOLING SYSTEM

1 - Water pump

2 - Engine coolant temperature sensor Characteristic of working principle 1060G pressure pump electric control

3 - Thermostat

4 - Radiator

5 - Electric fan

6 - Reservoir

7 - Rigid coolant pump intake pipe

8 - E.G.R. exhaust gas heat exchanger Characteristic of working principle 1080C exhaust gas recirculation system (e.g.r.)

9 - Climate control system heater