Note: Do not spill diesel fuel on the coolant hoses. In case of contact, the hoses must be cleaned immediately! The water removal valve is not available on all versions.
Connect the transparent hose with the water removal container to the water removal screw -1-. Start the engine. Carefully loosen the water bleed screw -1- by ¼ turn. Drain approx. 0.3-0.4 l of liquid. When clean diesel fuel starts to flow out, close the water bleed screw -1-. Stop the engine and disconnect the hose.