What's this tab for?

As pictured the electrical tab on the heater control levers, makes contact on a copper nub

And what wire goes to it


Tia

 

I believe that it’s to turn on your aux fan that sits above a type 4 engine as you switch the negative so when you pull the lever for heat it earths out and turns on the fan relay but I could be wrong lol.

 

^this. It’s the contact for the snail fan cable, that earths the line when the lever’s in a certain position.

 

Ok that's great, I have a type 1 engine and no snail fan

Thanks for the quick replies as always

 

Now you have a project ..