pooling

Hi guys. Wasn't sure this was the right section to post this, but I suppose pooling water leads to corroded bodywork, so here it is. Mods, please move the thread if required. I washed the CL500 last night, and this morning when I was cleaning the interior, I opened the boot and saw these...

Hi, brand new to the site (and forums in general). I am having trouble with my 05 plate c220 CDI, an oil leak that is pooling in the channels just under the oil filler cap (oil drip pan? Oil separator housing?). After a while the pooling oil spills onto the hot engine (exhaust manifold?)...