Spewl

This is my first post here so excuse me if I'm doing anything wrong, I've been having a missfire issue on my 2002 w163 Ml320 , I suspect coils, I've taken out all six coil packs to test but my multimeter is showing 0 ohms between all three pins and infinite resistance between the pins and the terminals for the spark plug wires on all 6 coil packs does anyone know what readings I'm supposed to be getting ,thanks in advance.