Withdrawal
Note: On older engines, the thermostat is not serviced separately and must be replaced along with the coolant pump hose.
1. Drain the cooling system.
2. Remove the air cleaner outlet duct.
3. Remove a collar of fastening of the bottom hose of a radiator to a branch pipe of the pump of a cooling liquid.
4. Remove the lower radiator hose from the pump nozzle.
5. Turn away bolts of fastening of a branch pipe of the pump of a cooling liquid. Tightening torque 15 Nm.
6. Remove a branch pipe of the pump of a cooling liquid.
7. Remove and discard nozzle seal.
8. Remove the thermostat.
9. Installation is carried out in the reverse order.
Examination
The temperature of the beginning and end of opening of the thermostat is indicated on the thermostat housing, usually the thermostat starts to open at 87°C and ends at 97°C.
1. Hang the thermostat on a wire in a container of coolant (a 50/50 solution of ethylene glycol and water) so that it does not touch the walls of the container.
2. Heat the water 11°C above the temperature indicated on the thermostat housing. After a while, the thermostat should open completely.
3. Cool the coolant: the thermostat should close completely at a temperature less than 6°C, indicated on the thermostat housing.
4. At negative results of check replace the thermostat.