Removal
Drain and collect the coolant.
Disconnect the thick hose going to the radiator and the thin hose going to the expansion tank from the thermostat housing. To do this, squeeze the spring clamps with pliers.
Loosen the mounting bolts and remove the coolant outlet fitting together with the gasket and thermostat. Pay attention to the installation position (see picture) and, if necessary, mark it.
Installation
If necessary, test the thermostat by heating it in a container of water before reinstalling.
Clean and degrease the sealing surfaces of the outlet fitting and thermostat housing.
Insert the thermostat into the cylinder head in the same position as before removal. The rubber gasket around the thermostat should only be replaced if damaged.
Install the thermostat housing with a new gasket and tighten the mounting bolts to 20 Nm. Replace the gasket in each case.
Place the coolant hoses onto the thermostat housing and secure them with clamps.
Fill the cooling system with coolant. Warm up the engine and check the tightness of the outlet fitting and, if necessary, tighten the bolts.
Specially for 1.25/1.4L engine
Note: This section only describes the differences you need to pay attention to when removing the thermostat.
Remove the generator.
Remove the coolant hoses from the thermostat housing by squeezing the spring clamps on the hoses with pliers. The thermostat housing is located on the cylinder head next to the oil dipstick.
Insert the thermostat so that the small hole (arrow) is at the top.
Install the thermostat housing with a new gasket and tighten the mounting bolts to 10 Nm. Do not exceed the tightening torque, otherwise the housing will be damaged.
Specially for diesel engine
Note: This section only describes the differences you need to pay attention to when removing the thermostat.
Remove the coolant hose going to the radiator from the thermostat housing by squeezing the spring clamp with pliers.
Article is available on the website: MazBook.ru
Remove the temperature sensor wire plug from the top of the thermostat housing.
Unscrew the two mounting bolts and remove the housing with the gasket and thermostat.