We replace the coolant pump if there is a coolant leak or if there is increased noise during operation

The thermostat is replaced in case of unstable engine temperature conditions: overheating or insufficient engine warm-up.

Wrenches 10 and 12 are required to replace the pump.

Disconnect the wire from the negative battery terminal

Draining the coolant from the cooling system - article "Features of the Hyundai Solaris engine cooling system"

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the accessory drive belt

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Unscrew the four pulley bolts

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the pulley

Replacing the pump and thermostat of the Hyundai Solaris cooling system

We unscrew the five bolts securing the water pump to the cylinder block

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Carefully pry off the water pump housing with a slotted screwdriver and remove it

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the gasket

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Install the water pump and previously removed parts in reverse order

Fill coolant

Replacing the cooling system thermostat

To check the thermostat on a car, start a cold engine and feel the radiator outlet hose - it should be cold.

After the coolant temperature reaches 82°C, the hose should begin to heat up rapidly, indicating the start of fluid circulation in the large circuit.

If this does not happen and the coolant temperature sensor is good, replace the thermostat.

Disconnect the negative battery terminal

Drain the coolant as described in the article - Features of the Hyundai Solaris engine cooling system

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Loosen the hose clamp to the thermostat housing nozzle and slide it along the hose

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the hose from the nozzle

Replacing the pump and thermostat of the Hyundai Solaris cooling system

We unscrew the two nuts of the studs of the thermostat housing

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the thermostat housing from its studs ia

Replacing the pump and thermostat of the Hyundai Solaris cooling system

Remove the thermostat from the cylinder block

Replacing the pump and thermostat of the Hyundai Solaris cooling system

To check, we lower the thermostat into a container with water heated to 78-80 ° C

Gradually heating the water, we monitor the opening temperature of the thermostat valve

The valve should start to open at 82±1.5° C, at 95° the thermostat should open fully

Valve travel (when fully open) - 8.5 mm.

Install the thermostat in the reverse order and fill in the coolant.