Hmmm sounds like superglue fumes to me.
I find superglue leaves fumes on certain things.
Perhaps someone, some punk ass decided to glue your locks.
Damn bastards. That really sucks.
I hope its not superglue, that can ruin a perfectly good lock.
If it is superglue, you might be able to get some debonder for it, which might help.
'92 300CE - Sold
2004 C240 - C7 Wheels
2015 ML350 - P1, Pano, Ash poplar wood, Sport Dinamica interior, Running Boards Keyless go.