i just busted on of my d15b7 head sensors on the left side.
its not the small one, i think the small one is temperature for the cluster.
i broke the bigger gray one

wtf does it do and can it be swapped form a d16z6, im to lazy to go though the manual

 

Coolant temp sensor for the ecu. Well at least that is what I think it is on my a6 or b2 heads. Probably can be swapped with a z6 but I don't know for sure. :P

 

should be the same.

 

replaced and working
thx again