6-cylinder engines
Unscrew the plug screw and collect the leaking oil.
Then pull out the thermostat with control disc and pressure spring.
Insert the thermostat with control disc and pressure spring into the upper part of the filter. a Screw in and tighten the cover bolt.
Check the operation of the thermostat and the tightness of the plug.
Add oil to the correct level.
8-cylinder engines
Remove oil filter. To do this, unscrew the valve seat ring using a special wrench.
Remove the gear valve with pressure spring, spring plate with pressure spring and control disc with thermostat.
Insert thermostat with control disc and pressure spring, spring plate with pressure spring and toothed valve.
Install valve seat ring and tighten to specified torque.
Pin the valve seat ring in both grooves on the oil filter housing using a cross-cut tool.
Install the oil filter with a new gasket and adjust the correct oil level in the engine.