kkarb

Hello
Today i replaced my cabin air blower behind the glovebox at my ML320cdi (W164). The old one sounded like a bird in my dash.

When i removed the glovebox, it fall out a 10cm x 10cm black/grey padding "foam rubber / styrophoam"(not sure about the exact English word) Like a dice, with a slot at one side.

I cant figure out, its location..

Does anyone have a idea??

Adding a Picture of it..

Regards