Question on BMW 3-Series E36 Valve Cleaning

I have a 330ci e46 2005 model,i want to now where did the small pipe of the plastic vacuum unit which is just under the starter fit in or where did it connect in from the vacuum.



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[Nick at Pelican Parts]

If I remember correctly, all the small vacuum hoses connect at the rear of the intake, near the main plenum.

- Nick