There are products like the one I mentioned above. I tried it once on a Lincoln with the same problem. Unfortunately, it was a VERY temp. fix, as the real problem was that the foam it was attached to had deteriorated to the point that it, and not the adhessive was the weak spot. I had to replace the entire headliner.

Good luck with yours. I haven't tried it on a Benz, so don't know if it is constructed in the same way.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles