Diesel engine cooling system Peugeot 305

Cooling system specification
System type: Sealed, with front-mounted radiator, expansion tank, water pump and thermostat. Electric cooling fan (fans). System capacity: 9.5 l Coolant Type/Specification: Ethylene Glycol Based Antifreeze [9730 70]...

General description of the cooling system
The cooling system is sealed and has a front-mounted radiator and a timing belt driven water pump. The thermostat is located on the cylinder head on the flywheel side and ensures faster engine warm-up by initially...

Routine maintenance
The following operations must be performed at the frequency specified in the section " Routine maintenance " at the beginning of this Guide. Checking the coolant level 1. The check must be performed on a cold engine. 2....

Pressure testing of the cooling system
1. If you suspect that there are leaks in the system, you should pressure test it. To do this, it is necessary to increase the pressure in the system using a hand pump with an adapter, which is installed on the filler...

Draining the coolant
1. If the engine is hot, allow it to cool for at least 10 minutes after turning it off. 2. Press on the expansion tank cap and slowly turn it counterclockwise until it can be removed. It is recommended to handle the...

Flushing the cooling system
1. If the coolant is contaminated with deposits and rust, the system must be flushed. 2. Drain the coolant ( see previous section ). 3. Remove the thermostat ( see section 8 ). 4. If not already done, disconnect the...

Filling with coolant
1. Check that the drain plugs are securely tightened, all hoses are in good condition and their clamps are securely tightened. 2. Loosen or remove the bleed screws located on the thermostat housing cover and, where...

Radiator — removal and installation
1. Drain the coolant ( see section 4 ). 2. Remove the air cleaner ( see chapter 3B ). 3. Loosen the clamps and disconnect the upper and lower hoses and the ventilation hose from the radiator (see photo). 4. Disconnect...

Thermostat — removal, checking, and installation
1. Drain the coolant ( see section 4 ). 2. Remove the air cleaner ( see chapter 3B ). 3. Loosen the clamp and disconnect the upper hose from the thermostat housing cover (see photo). 4. Unscrew 4 bolts and remove the...

Water pump — removal and installation
1. Remove the timing belt ( see Chapter 1A, Section 4 ). 2. Drain the coolant ( see section 4 ) and disconnect the lower radiator hose from the pump inlet. 3. Unscrew the bolts and remove the water pump from the...

Electric Cooling Fans — removal and installation
1. Disconnect the negative cable from the battery. 2. Remove the radiator grille. 3. Disconnect the wiring at the electrical connector. 4. Loosen the mounting bolts and remove the fan shroud (fans) (see photo). 5. If...

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