B Class battery compartment rattle

[paulandlouise]

So Mercedes sorted one rattle ( after 3 months ) but have caused another - as my radio info was re set I guess they have taken the battery out from under the floor and now I have a really annoying rattle coming from where the battery sits - not all the time but it's certainly there - tried holding pushing all round it but no joy - anyone else had this problem ?? Before yet another trip to the dealer !