E320 CDI Newbie help

Just purchased a 2000 e320 cdi

great car

2 small problems i was wondering if anyone could help with ??

1 - in the boot, passenger side next to cd changer is a small amount of water in the section that is lower down. car has sat for a bit and owner says boot was left open by mistake in rain. would a seal or anything else cause this ?

2 - drivers window goes up and down ok but when about a inch from the top coming back up it starts to tilt forward which leaves a couple of cm gap at rear of window. any help how to fix that ?

thanks james