2017 mini cooper clubman passenger knee air bag removed and taped?

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My 2017 Mini Cooper Clubman began making a very loud grinding noise while driving. The dealership made notes on the invoice: removed passenger side knee airbag cover and applied felt tape to the contact points. reinstalled components. test drove and rattle is no more. Is this correct reinstallation and will it be safe now? is applying felt tape to the contact points the correct way to fix this?