While trying to isolate leaks on the rear windows of my 84 300TD wagon, I noticed 2 vent holes, located behind the rear window, hidden in the rear of the drip rail/gutter. While looking at 300D sedans, I noticed them as well.

First of all, what are these for? Secondly, where do these drain out of the car? It seems that rain from the drip rails would just pour right into the things and soak the car if they didn't drain somewhere outside of the vehicle.

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1984 300TD Wagon

They let air out of the cabin for flow through ventilation. I am not sure where they drain, but it won't be into the passenger compartment. If you have water problems look first at the windshield and rear screen gasket. I always clean and caulk them with black silicone when I first get a new old benz.

There is a way for water to come in through the heater air intake at the base of the windshield too but I have never really understood that one.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Aren't there also tubes to drain the sun roof in there somewhere? I think one of these tends to cause rust in the rear fenders of the wagons. If someone has a picture they can post here of where these tubes are, that would be helpful to me. I probably need to clean mine out.

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" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

The rear sunroof drains exit out those vents. It's easiest to clean them by entering from the back and pushing the line into the sunroof cavity with the sunroof panel removed. I used a long wand extension on my shop vac to suck up the debris that pushed through into the cavity.

This is the best pic I could get, but at least you see the area you have to look for the end of the rubber drain hose. I used an old speedo cable to clear the drain and used the weed whacker line for the photo since it was easier to see.

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Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys

http://www.peachparts.com/shopforum/showthread.php?t=207158


Works great!

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Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

Gone:
'95 E300 188K "Batmobile" Texas Unfriendly Black
'85 300TD 235K "The Wagon" Texas Friendly White
'80 240D 154K "China" Scar engine installed
'81 300TD 240K "Smash"
'80 240D 230K "The Squash"
'81 240D 293K"Scar" Rear ended harder than Elton John

Thanks, Jimmy. I remember seeing that before, but didn't know where it was.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles

Thanks, Chad. I think I'll go ahead and order the little plumber's snake from Harbor Freight. I have a lot of trees around the house and quite a few are pines, so I'll need to clean it often I'm sure.

__________________
" We have nothing to fear but the main stream media itself . . . ."- Adapted from Franklin D Roosevelt for the 21st century

OBK #55

1998 Lincoln Continental - Sold
Max 1984 300TD 285,000 miles - Sold
The Dee8gonator 1987 560SEC 196,000 miles - Sold
Orgasmatron - 2006 CLS500 90,000 miles
2002 C320 Wagon 122,000 miles
2016 AMG GTS 12,000 miles