Hello Omi-Gemeinde, my wife was yesterday with the Omi to the AU and HU at the TÜV. The badge for the AU was without problems because all values were correct, but with the HU it looked not so good. The examiner found the following defects: 1: Ablendlicht setting too low 2: Battery: coverage missing 3: drive: oil loss 4: brake discs front corrosion formation Now I have some questions and hope that she can answer me: A) What the hell is a cover for the battery? Ic b) What does the TÜV mean with rust formation on the brake disc? The surfaces on which the blocks rub are mirror-blank and the outer wreath I know only with rust base. C) The omi loses now for a few days strongly oil. If the engine is okay, as soon as my wife starts the omi throws out the oil. It can be clearly seen that it is by the lower screw (driver side) of the oil tank. Around this screw everything is dry, only d he screw itself is wet. (Of course, the screw is properly tightened!) For me, this looks like the oil is running along the inside of the transmission bell, but I didn’t know until today that it has to go there at all. Who knows the problem???? I am grateful for every answer, because I want to get this over with quickly.