Cabrio coolant sensors !!

Good evening, need some help on indenting the 3 sensors on the coolant pipe junction unit coming from the cylinder head .
The 3 sensors blue and red which are on top of coolant pipe junction and the one underneath is black the coolant pipe junction is plastic in construction .
The model of golf is mk1 1800 cabrio
Many thanks for any help in this matter

Carbed or GTI model?
Pictures help too.

if its a carb the top 2 should be red and grey, these are thermoswitches for the carb and inlet heaters. blue is for a digifant gti! black is coolant temp for dash