Hello guys, this will be my first post so be nice! 

I recently crashed my Audi destroying the radiator and from bumper as far as I'm aware. I have managed to order a new radiator and now she's fixed but I can't seem to figure out what sensor this is and what's it for? Any help would be appreciated. David. 

Audi A3 - 2004 plate - special edition. 

My guess is something to do with the airbags ?

Did the airbags go ?

Thank you for the reply. 

No the airbags didn't go off at. Thinking about it, that's rather weird. 

That is a bit strange but I guess it depends on how hard the crash was, are there any lights on the dash now that weren't there before ?

Or when you push in the switch do any lights appear ?

I was going about 40 so I would of thought it would of tbh. 

Nope no lights on what so ever that's why I'm very confused

Yeah I would have thought at that speed the airbags would have popped , you know any guys down your local Audi garage you could ask or maybe a autobody repair shop ?

Outside temp sensor. Its clipped inside of the front bumper