Oil change in automatic transmission

An oil change is carried out only when the automatic transmission is repaired or its level is insufficient, which is extremely rare. Change the oil in the automatic transmission in the following order. Warm up the oil in the automatic transmission by making an intensive trip of 5-7 km. Set the automatic transmission control selector to position «R», remove the stiffening plate if it bothers you. Place a container under the automatic transmission to drain the oil. Loosen the oil drain and oil fill plugs (1, fig. 9.3) and drain the oil. The oil drains for a long time, do not rush.



Install the drain plug with a new gasket, tighten the M16x1.5 plug to 30 Nm (3.0 kgf·m), tighten the M18x1.5 plug with a torque of 35 Nm (3.5 kgf·m).

Note. Check the oil level in the automatic transmission crankcase at an oil temperature of 30–55°C.

Through the filler plug, using an oil changer or a syringe, pour oil into the automatic transmission crankcase. Pay special attention to the cleanliness of the work carried out and the quality of the oil.

Start the engine and bring to idle. Pressing the brake pedal, alternately set the selector lever to all positions, and then check the oil temperature, which should be in the range of 30 - 55°C.


With the engine idling, set the selector lever to the position «R» or «N». Check the oil level in the automatic transmission crankcase using a BMW stand (DIS) or MoDiC BMW, according to the documentation for the stand.

Signs of an oil level that is too high are: strong foaming; increased oil temperature when driving at high speed: oil exits through the automatic transmission vent.

Signs of too low oil level are: a general malfunction of the automatic transmission; clicking of automatic transmission valves, foaming.