Hi guys new here and need help ive acquired a 2003 325ci convertible ive refitted the manufold with new gaskets ccv and various other parts but on the intake i have a hose and i have no idea where it connects to ? 

Morning Steve

Welcome to the Forum

Long time since I have played with one of these if my old brain is functioning correctly that is a vacuum line. It should have a non-return valve in it then connect to the electric emissions valve and from there to the exhaust emissions valve.

But then again, I could be confused at my age 🤣 You can check if you take a look at www.realoem.com put the last 7 digits of your Vin number into the search box, it will bring up your model then look in the engine section I believe. You will find small, exploded drawings which should help identify parts and where they fit.

Good luck

Dave

On 10/24/2022 at 7:30 AM, Greydog said:

Morning Steve

Welcome to the Forum

Long time since I have played with one of these if my old brain is functioning correctly that is a vacuum line. It should have a non-return valve in it then connect to the electric emissions valve and from there to the exhaust emissions valve.

But then again, I could be confused at my age 🤣 You can check if you take a look at www.realoem.com put the last 7 digits of your Vin number into the search box, it will bring up your model then look in the engine section I believe. You will find small, exploded drawings which should help identify parts and where they fit.

Good luck

Dave

Cheers dave ive looked at a fee diagrams on various sites but non show this hose ? I beleive the the non return valve on the back of the engine wasn't fitted on this model ? 

Morning Steve 

Have you checked on www.realoem.com put the last 7 digits of your vin into the search box it will bring up your model. Then you will be sure that the drawing is specific to your model, I think that is where the answer will be

Dave