Engine cooling and lubrication system Renault Symbol 1

General information about the cooling system
The cooling system is of a closed type and consists of the following main elements: a radiator located in the front, an engine water jacket, a water pump driven by a timing belt, an electric fan, a thermostat and...

Operation of the engine cooling system
Cold coolant flows through the lower radiator hose to the water pump, which directs it to the water jacket of the cylinder block, the channels in the cylinder head and the heater radiator. After the block, combustion...

Replacing the coolant
Drain the liquid in the following order: let the engine cool down; set the heater switch to the maximum heat position; open the expansion tank cap; place a 6-7L container under the lower radiator hose; remove the engine...

Removal and installation the water pump
The water pump cannot be repaired, so if there is increased noise or fluid leaks, it must be replaced. Removal procedure: disconnect the negative battery cable; drain the cooling system by removing the lower hose from...

Removal and installation an electric fan
Removal procedure: disconnect the negative battery cable; Fig. 3.84. Removing the rubber seal of the engine compartment crossmember unscrew the screws securing the decorative grille, carefully detach its ends from the...

Removal and installation the radiator
Removal procedure: remove the electric fan as described earlier; drain the coolant by disconnecting the lower hose from the radiator; disconnect the upper hose from the radiator; remove the air intake pipe; on models...

Checking, removing and installing the coolant temperature sensor
Fig. 3.80. Location of the coolant temperature sensor (1) and the air bleed nipple (2) on the thermostat housing The sensor is installed in the thermostat housing (see fig. 3.80). It is a resistor with a negative...

Removal, checking and installation the thermostat
Removal procedure: drain the coolant by unscrewing the drain plug of the cylinder block; loosen the clamp and remove the hose from the thermostat cover; Fig. 3.88. Thermostat housing unscrew the bolts securing the...

General information about the engine lubrication system
The engine lubrication system is forced under pressure. The gear-type oil pump is located at the bottom of the crankcase and is driven by a chain from the crankshaft sprocket. The full-flow oil filter is screwed into...

Disassembly, inspection and assembly of the oil pump
Work order: remove the oil pump as described earlier; unscrew the mounting bolts, remove the cover and oil receiver; remove the pin, adjusting screw, spring and plunger of the pressure reducing valve; carefully inspect...

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Other sections on other Renault models

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➽ Power unit: Cooling system Renault Laguna 2 (2001-2007)
➽ Power unit: Cooling and lubrication system Renault Fluence 1 (2009-2020, petrol)
➽ Power unit: Cooling system Renault Duster 1 (2009-2017)
➽ Power unit: Cooling system Renault Espace I and II (1984-1996)
➽ Power unit: Cooling system Renault Megan 2 (2002-2009, petrol)

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