You can unplug it.?

What happens then.?

We are talking about number 7 in this link.?

RealOEM.com BMW E53 X5 3.0i Intake manifold system

Yes - that is the part.. Ther is a plug on top, right before the round part. If you unplug it the car will still run but will not cause the valve to open and close.

Okey.

I thought maybe the car wouldn't run with the valve unplugged..

So, if i unplug it, it woun't move and the sound will be gone if it indeed is the DISA.?

I want to know this too bc I don't want to buy a part that may not be causing my rattling noise. If I can unplug to see if the rattle disappears, that will tell me if it is the culprit.

Thanks for any help!!

*BUMP*

On the e46 forum they said to unplug it as a part of the diagnostics, I did on mine, and the car still ran. Give it a shot, it takes two second to unplug, and it will either work or it wont.

The car stopped making the rattling sound yesterday..

I noticed later on that it was'nt running as smooth as usual when idling.

I unscrewed the DISA vavle, two screws, no problem, and quickly saw that the flap there had broken loose, and was now wedged in there.

I removed the flap and refitted the DISA unit.

The car runs as usual exept the idle part, but i believe it will get worse and worse until i get a replacement....

So, if you suspect the DISA valve, there should'nt be a problem unplugging it to diagnose. Also, no problem at all to take it out for inspection...