Mercedes Benz repair: Water Leaking into 1982 Mercedes 300TD, mercedes place, mercedesshop

Question
I have water leaking into my 1982 300 Turbo Deisel Station Wagon. It collects on the passenger side front and rear floor. I can't detect where the leak is coming from by looking under the hood, under the floor mats etc... Any ideas where the leak might be coming from?

If not, can you recommend a good Mercedes place in Seattle WA where I could take the car?

Thanks

Answer
Hood hinge trough is the most common leak issue on all W123 Mercedes.

Who has the most rust and still drives
http://www.mercedesshop.com/shopforum/showthread.php?t=86054&page=1&pp=15

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