what chest dsg or multitronic? Generally, you start a car, you change the brakes one after another, holding 2-3 seconds, hook up a vaga, look in the parameters until the oil reaches 35-40 degrees. You unscrew the drain plug, oil should show up, as you turn it off and that's it. Anything does not show it is filled from the bottom with an oiler. The plug performs the function of checking, if you want to drain the oil, you must unscrew the pipe from the oil level from under the cork. The Internet is full of manuals and videos on youtube how to do it.