To flush the transformer, it is necessary to remove the gearbox from the vehicle.
1. Remove the drain plug, fill the transformer with 1 liter of kerosene and screw the drain plug back on.
2. Fit drift 201 589 05 15 00 to the transformer and turn it slowly with a drill for about 2 minutes.
3. Drain the kerosene.
4. Repeat these operations until clean kerosene drains from the transformer.