Engine cooling and ventilation Renault Scenic 1

Coolant circulation
The main components of the cooling system are the radiator, water pump, thermostat and electric radiator fan (see illustration 1.0). 1 - engine; 2 - radiator; 3 - expansion tank; 4 - heater radiator; 5 - thermostat...

Coolant — Replacement
Important! If the coolant is drained as part of a vehicle repair, it must be collected for reuse. If the water pump, radiator or cylinder head is being replaced, the coolant must be replaced with new coolant. Only fill...

Cooling system — leak test
The tightness of the cooling system, as well as the functionality of the outlet valve on the radiator filler cap, can be checked using a special device. The tightness test procedure is given using the RENAULT device,...

Thermal switch — check
The thermal switch is screwed into the radiator and is located above the lower coolant hose. The thermal switch is designed to turn on the electric fan for blowing the radiator when the coolant heats up to a certain...

Coolant Temperature Sensor — Removal, Installation and Testing
The coolant temperature gauge sensor records the current engine temperature and transmits this data to the engine control unit. The sensor consists of a negative temperature coefficient element, which reduces the...

Thermostat — Removal, Installation and Checking
As the engine temperature increases, the thermostat opens a large circuit of coolant circulation. If, due to a malfunction, the thermostat does not work, the engine will overheat. This situation is signaled by the...

Radiator — removal and installation
During vehicle operation, the narrow radiator channels may become clogged with limescale deposits and coolant sediment. This reduces the cooling effect and the engine may overheat. In this case, the radiator should be...

Water pump — removal and installation
The water pump cannot be repaired. If a defect occurs, the pump must be replaced as a set. The cause of coolant leakage on the cylinder block near the water pump when the engine is hot is usually a defect in the pump...

Heating system — design description
9.0 Heating system: 1 - heater radiator; 2 - heater fan; 3 - air distribution flap lever; 4 - air distribution flap drive; 5 - air distribution flap drive cable; 6 - damper cable for mixing hot and cold air a - air...

Heater Switches — Removal and Installation
Removal 1. Remove the ashtray. 2. Unscrew the bolts A and remove the ashtray holder (see illustration). 10.2 Unscrew the bolts A and remove the ashtray holder 3. Unscrew the two bolts B securing the heater control...

Heater flap rods — removal and installation
In cars without air conditioning, the damper drive cables can be removed without dismantling the instrument panel. If air conditioning is installed, then to remove the air distribution damper rods, you will need to...

Heater Fan Electric Motor — Removal and Installation
Attention! Depending on the configuration, the car can be equipped with a heater with or without air circulation mode in the cabin. A heater with recirculation mode can be recognized by the presence of a switch with a...

Additional fan motor resistors — removal and installation
Removal 1. Disconnect the negative (-) battery terminal. Warning! This will delete data from memory devices, such as the radio's security code. Before disconnecting the battery, read the recommendations in Chapter "...

Cabin filter — removal and installation
Removal 1. Open the hood. Press the two clamps G and remove the air filter entering the passenger compartment (see illustration). 14.1 Press the two clamps G and remove the air filter entering the passenger compartment...

Air conditioner — design description
15.0 Schematic diagram of air conditioning installation: 1 - fan; 2 - evaporator; 3 - throttle valve; 4 - connecting pipe for low pressure supply during service work; 5 - connecting pipe for high pressure supply during...

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Other sections on other Renault models

➽ Power unit: Cooling and lubrication system Renault Fluence 1 (2009-2020, petrol)
➽ Power unit: Cooling system Renault Laguna 2 (2001-2007)
➽ Power unit: Cooling system Renault Symbol 2 (2008-2013, 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 Logan 1 (2004-2012, petrol)

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