I have only just realized a black on black doesn't show up well. I will try to take a new picture this week sometime, but basically if you take 1.5mm +/- off the top of the internal connector these fit every original sensor on the mercedes. here is the original air temp (MAT) sensor

also to note is that the fuel pump relay can be pulled out and the PF wire from the megasquirt relay stuck into the top left pin hole. this will allow the megasquirt to control the fuel pump. It has automatic cut off's for no cranking conditions and will utilize WOT to stop fuel flow when starting. the only problem I have is now that the old fuel injection computer is detached there is no connection for my temp gauge on the dash so i have to look at the temp gauge on my computer (see first start page). I will sort this out in the next few days

I have sorted out the temperature gauge feed to the instrument cluster. wire from the temperature sender at the rear of the left bank (passenger side US cars) as you look at the engine through the fire wall and ito the 6 hole plug that you removed when you removed the wiring to the original computer. In the picture above you can see the wire to the live output for the fuel pump relay from the megasquirt relay board. Note on the fire wall behind and above it is a silver relay with an orange sticker on it. The 6 hole plug that you are looking for to wire in the temp sender is just above that relay.

the wire gets plugged into the top right hole on the 6 way plug