Replace the check strap to be done with the issue. Buy two to have an extra for when (Not If) the next time one of them begins to fail. My experience is the driver's door fails first followed soon by the strap on the right rear passenger door. If they have not been cared for properly (at least occasionally lubed) the least used doors are particularly susceptible to failing when metals are frozen.

Oh, you do know that too much lithium grease just wears those things out. The book indicates lube at every 15k...

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Bama1


2008 SLK 280, Firemist Red - "Hurricane"
2001 F150 Lariat 4x4, Black on Black - "Badboy"
1982 240D 4 speed survivor -"Pearl" - Donated to Vietnam Veterans
1962 Oldsmobile Dynamic 88 -"Gertrude"

1954 model original owner - ~2.5M
Gray softtop/solid exterior/modified chassis