the REAR has two mounts,( front and rear mount and the front is the leaking one.) I saw a new rear mount from dealer and it looked like solid rubber, the front (rear) they did not have any to show me. That's the one I want to know if it can leak. Any benz specialist/mechanics share their thoughts as I am confused.

I didnt add/screw anything new to my trunk so I didnt puncture anything. I just painted my floor recently and noticed it just last week. It doesnt leak NO MORE cuz i think it leaked all it can, that is why I'm suspecting a mount with some kind of filling.
Please give me more ideas or thoughts.

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1996 E320- 18" Chrome AMG, Bling Bling Mirrors