My '82 240 (W123) leaks into the trunk at every rain. I see it dripping from the under side of the parcel shelf. I understand that the backlight gaskets are prone to leaking, but I have sealed mine with no reduction in the flow of water--I expected at least a reduction.
I wonder if I am pursuing the wrong leak. Where do the vents in the rain gutter at the rear of the rear door openings drain. Is it possible that a drain hose ( if any) is missing? How do I access the area? What am I looking for?

ps. no sunroof, so I don't think thats the problem.

I think the water in my trunk is a leaking rear window seal. I have a very small amount of water. Ths seal will need replacing soon...

Very likely it's the rear window seal. It's not uncommon for there to be a hidden rust hole under the seal.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

If it only accumulates water in the passenger side, look inside the trunk, make sure the diesel fuel filler drain pipe is connected and not leaking. P.O. of my car disconnected the drain pipe and plenty water in the side well.

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Shane83SD

check that the trunk rain channel behind the trunk rubber gasket
isnt clogged up

Rubber/plastic liners on both sides of trunk are easy to remove.... its one or two phillips screws (i think) and then you pull the rubber liner out...... Underneath you will find finger hole size rubber drain that can be poked clear to drain the water..... I threw both my rubber trunk liners in the trash, knowing I'd like to keep an eye on the drain plugs...... after finding about 4" of standing water on passenger side - and maybe 2" of water on drivers side hidden underneath the dopey rubber trunk well liners.