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Old 12-05-2009, 02:24 AM
Aquaticedge's Avatar
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Wet, Juicy Rear end in 300TD

I'm experiencing some Water Issues on the rear end of my car. It's a 87 300TD. I was Changing out some things today and I noticed the Spare well had water in it... this is not the first occurrence of this. I've replaced a Cracked lens which retained a Surprising amount of water.. Could This be related or has my weather stripping worn out?

1987 300TD 311,000M Stolen. Presumed destroyed
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Old 12-05-2009, 07:27 AM
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Location: Nashua, NH
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Yes, the trunk seal, when it shrinks, allows water to enter so look at it closely and if it looks like it is not contacting the lid when it is closed replace it.
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz
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Old 12-05-2009, 08:56 AM
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Location: Lafayette Indiana
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You can also get water in around the rear window gasket. That can be cleaned and caulked with black silicone. YOu will also want to clean out the rubber drain in the bottom of the well on each side.
[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.
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Old 12-05-2009, 10:47 AM
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My SD has a small rust hole under the rear window gasket. I'm going to POR it & add silicone as a stop gap until I get it painted. You can pry up the seal & look for rust.
85SD 240K & stopped counting. 84SD 180,000. Thinking of painting both.
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Old 12-05-2009, 11:25 AM
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Location: Sunnyvale, Texas (DFW)
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While others are tailoring their answers to a sedan, and you appear to have a wagon, the rear window seal on the rear hatch is a known leaker too. Same thing applies with adding sealer around the seal/glass area. I've had to do that with Smash and have stopped a leak on one side. Now I have to address the other side...
Jimmy L.
'05 Acura TL 6MT
2001 ML430 My Spare

'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
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Old 12-06-2009, 03:23 AM
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My money is on the rear side window. You have a wagon, correct? They tend to leak (at least mine) in the corner of the rear side window. I need to re-seal my gaskets. While it is raining see if the carpet is wet right next to the glass.
1987 300TD 309, xxx 2.8.2014 10,000 mile OCI

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Old 12-06-2009, 03:56 AM
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I do believe it has to do with either the rubber around the door, or the tail light or a combination of the 2... the carpet is damp but not sodden, when i replaced the lights there was a small amount of water sitting on the spare side which had the cracked Tail lens. Is there a part number for the weather stripping on the door?

1987 300TD 311,000M Stolen. Presumed destroyed
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