rear carpet removal in 420SEL?
 

My mom's 420SEL is leaking weater into the back passenger floor. Quite a bit I might add. Anyways, I want to pull the carpet to see if there is any damage to the floor pan and try and find where the leak is coming from. I still hae to check the hinge drains. Does the rear seat have to come out? What else does? How long am I looking at to do this grueling task?
Thanks
David

May be rear window seal. This may help:


http://www.peachparts.com/shopforum/car-audio-multimedia/57630-help-cant-remove-rear-passenger-seats-check-factory-amps.html?highlight=remove+rear+seats+560