Good evening, my A16XER has been losing oil for some time now. Since it has become a little bit more (no dripping on the ground yet ) I have looked more closely today. It always looked like a leaky oil tank. However, the oil seems to come from above. Under the oil pressure switch and the left side of the oil cooler it runs down the block and then distributes itself along the oil tank, so it looks like a leaky oil tank. Maybe it is leaking too. A16XER also the well-known problems with leaking oil pressure switches? Where will the oil coolers leak most often? I could also expand the oil cooler myself and reseal it, however it is too cold in the garage at the moment. Does anyone know what such a repair will cost approximately in the workshop? (Time expenditure etc. ) The oil pressure switch is not exactly easy to achieve. Running power is 120Tkm. mfg