On-board computer and a scanner for Mercedes M111\M104 (HFM, PMS) based on the Android phone/tablet OBD2(ELM327)
OBD2 port Mercedes E Class - 210 (1995 - 2003) - Find your plug !
Mercedes E Class W124 Diagnostic Port Location
Adjustment makes you realise how many things are "just ain't so". Lambda is giving me strange readings and there's a vacuum leak from the pcv/idle air. : r/W124