I have snapped (due corrosion) connection to coolent unit on air intake manifold. I need to replace the whole thermostat housing mounted on the cylinder head. What is the easiest way of removing it? how many mounting studs are there?

is it possible to repair this unit?

price quote please

CAN IT BE REPAIRED

Does any one have a list of these plugs? I have 1986 325i
Which plug should be fitted (I do not think dash is original).

E30 tachometer/mpg meter, no reading, all other instruments ok.Can anyone give me the wiring details? Where does the info for this instrument originate.?