The oil level sensor must be replaced in the following order. Turn off the ignition, unscrew the oil filter cap so that the oil flows into the engine oil pan. Remove stiffening plate.
Unscrew the oil drain plug and drain the oil from the engine. Dispose of the drained oil for recycling. Disconnect loop (1, fig. 4.135) from the oil level sensor, unscrew the nuts (2) and remove the oil level sensor (3).
Clean the sealing surface on the oil sump. Replace gaskets - oil level sensor, oil filter cap and oil drain plug. Install and tighten the oil filter cap to 33 Nm (3.3 kgf·m), cork (M12) tighten the oil drain hole - torque 25 Nm (2.5 kgf·m). Pour oil into the engine.
Install the stiffening plate and fix it in two steps - with a torque of 56 Nm (5.6 kgf·m) + 90°.