Odd sound

[BMW X5]

So here's another odd one: has anyone ever noticed inside the cabin from the rear a sound of a ball rolling? I have looked everywhere and can't figure it out. Only happens when sudden movements are made such as turns or stops. Seems like rear passenger side but can't be sure and is really annoying

[rh71]

in the trunk? Under the hatch within the trunk?

[BMW X5]

No actually sounds a lot closer like maybe inside the rear door or under seat but I've looked everywhere I could think of so wondering if it's maybe a part loose somewhere. Problem is I haven't been able to easily make it do it on command

[BMW X5]

After looking for a while I think it may be a loose under passenger seat vent any thoughts?

[BMW X5]

Closing this one turns out loose bolt or screw in rear door sunshade holder

[bestvaluestore]

I hate weird sounds too. When someone is in my rear seat I hear squeaking sound.May be a spring?

[BMW X5]

it took me nearly a year to figure it out it was just one of those nails across the chalkboard type of annoying feelings. good luck

[bestvaluestore]

It happens when I got passengers on the rear seats so I may just leave it,I usually ride it alone or with someone on the passenger seat only.