A3 engine temp sencer on 2.0 LTD fsi engine. Location needed please

[P eagles]

Hi all new to this but would like to ask if any one can help by telling me the location and part no of the engine temp sencer . I have the engine emission light on. I have had the engine checked today at the Audi tt shop in Bedford and informed that this will need replacing. Can not be to difficult so I could do it my self

 

[s3 Hoggy]

Wrong section mate you want A3 8p section