Gasoline engine cooling system Volkswagen Sharan 1

Engine cooling system — design description
The cooling system serves to forcibly remove heat from the engine cylinders and transfer it to the surrounding air. Engine cooling system (VR6 and 2.0L) liquid, closed type, with...

Replacing the coolant
Replace the coolant in the following order: set the interior heating control lever on the instrument panel to the "Heiss" (hot) position; unscrew the expansion tank cap. If the...

Antifreeze — General Information and Precautions
Standard liquid (antifreeze) is used as a coolant - a mixture of water and ethylene glycol. Anti-corrosion additives contained in antifreeze prevent the formation of rust and...

Radiator Cap and Radiator Check
The radiator serves to remove heat from the coolant using air flow. The engine cooling system is under pressure. The radiator cap with a gasket hermetically seals the radiator,...

Removal and installation the radiator
2.0 liter engine Remove the radiator in the following order: disconnect the "-" terminal from the battery, since when the ignition is on, the electric fan wires are under voltage;...

Checking the cooling system fan
If the fan does not turn on when the engine warms up to the required temperature, first check the temperature switch located on the side of the radiator as follows: start the...

Checking the temperature sensor of a remote thermometer
Disconnect the wire from the temperature sensor and connect an ohmmeter between its terminal and the ground. When the engine is cold, the resistance of the sensor should be quite...

Removal and installation the water pump
The cooling system of the 2.0-liter engine includes a centrifugal water pump, which ensures constant circulation of the coolant. Remove the water cooling pump in the following...

Removal and installation the water pump of the VR6 engine
Removing and installing the VR6 engine water cooling pump is a labor-intensive job. To do this, you need to unscrew the engine mount mounting bolts, remove the engine and gearbox...

Water pump repair
VR6 Engine The water pump cannot be repaired, so if a fault is detected, replace it with a new one. 2.0 liter engine The water pump cannot be repaired, so if it is faulty, replace...

Thermostat 2.0 liter engine
Fig. 188. Disassembled water cooling pump of the 2.0-liter engine: 1 - bolt, 25 Nm; 2 - pulley; 3 - bolt, 10 Nm; 4 - water pump; 5 - gasket, replace; 6 - thermostat; 7 - O-ring,...

VR6 Engine Thermostat
Fig. 193. Parts of the thermostat housing and the thermostat itself: 1 - thermostat housing; 2 - Allen bolt, 10 Nm; 3 - thermostat; 4 - thermostat housing cover; 5 - Allen bolt,...

Poly V-belt
Fig. 194. Laying the drive poly V-belt on the pulleys of the engine units The poly V-belt drives all engine units from the crankshaft pulley or from the vibration damper. It is...

Coolant circulation pump
The engine cooling system has an additional electric coolant circulation pump. It is designated as V51 in the wiring diagram. The circulation pump runs continuously and also cools...

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