My tech checked on that (and I looked at another 300E that was on an adjacent rack
) and said everything was there - I suspected heat originally, because I couldn't see the glue just instantly turning to liquid. However, the carpet shop said they have seen in in other cars, and my tech said he has seen a couple of MBs with this. The carpet shop said it had probably been degrading slowly for at least a year, and was just now noticed because it soaked through the carpet.
Also, I usually tuck my daytimer against the passenger center tunnel when I drive. In the C230, my folder turns into a lap warmer in short order, but I haven't ever felt any warmth on the folder from the 300E - just stickiness from the glue! So I guess it is just old chemistry!
2003 Firemist Red/grey leather SL 500
2015 Palladium Silver/black mbtex GLK 350
1987 Smoke Silver/burgundy mbtex 300E Sportline (SOLD)
Click to see 87 300E