Hello Together I have opened new topic to Differential Oil, as I found nothing to R class in the forum. Has someone already changed oil? I will soon make oil change. I have asked Mercedes Benz, and wait for answer which oil comes in. According to the internet comes in an 85w90 oil. Differential Oil Change should be quite easy. Differential has two screws (inbus screws). Venting and draining screws. In the WIS I could find nothing to the topic. first turn out the upper vent screw 3. Turn out the drain screw and release oil. 4. Clean the drain screw and turn in.(I saw the screw Teflon tape was put on it so that it is also tight) 5. Inject oil with large syringe in the vent opening until it starts to run out and immediately turn in the screw. Once I asked MB to change because of differential oil. The answer was not needed. Now when I see how to switch in the video, and what broth comes out?? I can’t imagine. What do you say about it? Ah yes it should come in up to about 1.5 liters