Removing
Put the car on a two-post lift, apply the parking brake, turn off the ignition and disconnect the wire terminal "masses" from the battery.
Remove the engine crankcase protection.
Drain the liquid from the engine cooling system (see above).
For vehicles with K4M engine
Remove intake silencer.
Remove the clamps and disconnect the hoses 1, 2 and 4, figures 13-14, from the thermostat housing (clamp remover Mot. 1202 or Mot. 1448).
Figure 13-14 - Disconnecting the hoses from the K4M engine thermostat housing: 1 - inlet hose of the radiator of the engine cooling system; 2 - expansion tank hose; 3 - hose holder; 4 - interior heater hose; 5 - coolant temperature sensor
Disconnect the wiring harness and remove the coolant temperature sensor (wrench 18).
Detach hoses from holder 3.
Unscrew the nine bolts 1, Figure 13-15, fastening and remove the thermostat housing 2 (interchangeable head 8, extension, ratchet wrench).
For vehicles with K7M engine
Remove the air filter intake pipe.
Remove clamps and disconnect hoses 1 and 2, Figure 13-16, from thermostat 3 (clamp remover Mot. 1202 or Mot. 1448).
Figure 13-16 - Disconnecting the hoses from the K7M engine thermostat: 1 - expansion tank hose; 2 - hose inlet to the radiator of the engine cooling system; 3 - thermostat
Unscrew bolts 1, Figure 13-17, fastening the thermostat housing (interchangeable head 8, extension, ratchet wrench).
Remove thermostat 2 with gasket.
The thermostat gasket must be replaced.
Figure 13-15 - Removing the K4M engine thermostat housing: 1 - fastening bolt; 2 - thermostat housing
Figure 13-17 - Removing the K7M engine thermostat: 1 - a bolt of fastening of the case of the thermostat; 2 - thermostat
Installation
For vehicles with K4M engine Install a new thermostat housing gasket. Install housing 2, Figure 13-15, thermostat.
Install and tighten, without tightening, the thermostat housing bolts (interchangeable head 8, extension, crank).
Tighten in the order shown in Figure 13-18 to the required torque in two stages the bolts 1... 9 of the thermostat housing (interchangeable head 8, extension, torque wrench).
Figure 13-18 - The order of tightening the bolts for fastening the thermostat housing of the K4M engine: 1...9 - fastening bolts
Tightening torque for the thermostat housing bolts: Stage 1 - pre-tightening 4 Nm (0.4 kgf·m);
Install the coolant temperature sensor and connect the wiring harness connector (wrench 18).
Install new clamps and connect hoses 1, 2 and 4, figures 13-14, to the thermostat housing (clamp remover Mot. 1202 or Mot. 1448).
Attach the hoses to the holder 3.
Install the intake silencer.
For vehicles with K7M engine
Install a new thermostat gasket.
Install thermostat 2.
The moment of an inhaling of bolts of fastening of the case of the thermostat 1 Nm (0.1 kgf·m) (interchangeable head 8, extension, torque wrench).
Install new hose clamps.
Connect hoses 1 and 2, Figure 13-16, to thermostat housing 3 (clamp remover Mot. 1202 or Mot. 1448).
Install the air filter intake pipe.
Operations for all vehicle configurations
Fill the engine cooling system (see above).
Install the engine crankcase protection.
Attach wire terminal "masses" to the battery.
Remove air from the engine cooling system (see above).