can somebdy please describe what these are......

 

BTW forgot to mention its a '96 a4 2.8l

 

BUMP...please i need to know coz i have to chage my ECT sensor...I'm confused...

 

None of those are your ect sensor. Have you looked at a write up? Your ECT sensor is to the left, if it's in the same location as the 1.8t, it's right behind your engine.

 

those are for the passnger side 02 sensor and the small one is for the brake and speed sensor. has nothing to do thing your ect like tdn said. the tdn is closer towards the head. you have to remove that intake hose you got in the pic there. the large flexible one if you're confused.

 

Oh ok.....Thanks.... Is this the right one...... The purple color thing.....