Which hose is this...

[Carson.simon]

Hi.

Got a small issue with my a3.

Eml light came on again after getting system lean bank 1 before.

Checking all the hoses for splits etc and this one just breaks off in my hand...

There is some oil residue around the area where its been broken aswell...looking to find out what it actuly does...im guessing it could be the cause of my issues...

 

[Trevor]

Hi Simon

Yep, that looks like it could be the cause.

It is a oil breather hose which will go into the inlet somewhere along the line to be burnt in combustion.

Once fixed/replaced, that should sort the error 

Cheers  Trevor

[Carson.simon]

Thanks...

I managed to worl out what it was in the end. 

Picked up a replacment hope to fit it this weekend...