Having installed a suitable container under the axle housing, first unscrew the filler and then the drain plugs and drain all the oil. Screw in the drain plug, tightening it to the moment:
65 Nm (front axle);
60 Nm (rear axle).
Pour in fresh gear oil to the level of the lower edge of the filler hole and tighten the filler plug to a torque of: 50 Nm (front and rear axles).