today on my journey of trying to find the Vaccum Leak (for system too lean code) for bmw x5 2003 3.0 (M54 engine)

I replaced the DISA valve (when I opened it the flap was not moving back)

I got a smoke machine and I realized the source of the smoke is under the DISA valve but I am not sure where that is ... is that The idle valve ?
here are the videos (you can see on there is also a small leak on the Hose on top Left of engine and a bigger major leak in the Lower part under the DISA)

https://www.youtube.com/watch?v=mKutEA20G9E
this one better without the airbox in the way:
https://youtu.be/8zD-iUQqyI0?si=63mLKZhH93Qo0_G6



I am doing a wild guess that it should be the idle valve, I ordered "Grommet for Idle Control Valve" ... am I going to the right direction ?

I also ordered Intake Boot "Tube Elbow" - Throttle Housing to Air Boot

I am also suspecting, could it be the "Throttle Housing Gasket" ? so I ordered that part too




p.s:
so far I changed the following, fuel filter, ignition and spark plugs, disa valve.