Electric mirror adjuster button

[Trefor]

I have an annoying rattle coming from the electric window adjustment button - the one you push in different positions to move the mirror position. Tried to get at it from behind, but it appears this is a sealed unit. I can touch it and make it make the same noise as if it's loose IYKWIM.

Anyone else had this problem?

Hoepfully my dealer will order a replacement unit for me next week ...