Oil drain plug with magnet - Mercedes-Benz Ponton

Previously, many vehicles have a magnet on the drain plug. So one could judge the accompanying chips about whether increasing the wear and tear or even announce major parts (Kolbenringabsplitterungen or timing chain wear) the approach of Death. The pontoon does have a fairly good filter system, but that depends on the magnetic metal, is also there and is visible there. In the filter, it would probably have been discarded unseen.

Costs little and brings an extra check.