Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 11-24-2009, 10:53 AM
benhogan's Avatar
CPA/Greasemonkey
 
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,092
How can you tell if the rear windshield rubber seal is leaking?

I cannot confirm it but the wet trunk and the wet rear floors are beginning to irritate me.

Also, what is a fair price to have the rear seal replaced by a glass replacement company? thanks in advance.

__________________
Ben
1987 190d 2.5Turbo
Reply With Quote
  #2  
Old 11-24-2009, 10:56 AM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 5,265
I found that drips would be visible at the rears of the wheelwells - inside the trunk. The water would drip in from under the seal, and that is where gravity would take it.

I would not necessarily thing that a rear windshield seal would allow water into the rear floors, given how far back the bottom of the seal is. You sure they are not due to bad vapor barriers, door seals or sunroof seals?

A dripping front windshield seal would likely migrate in time to create a puddle in the back - but your front floor would be wet first.
__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
Reply With Quote
  #3  
Old 11-24-2009, 10:58 AM
Vice President of Snark
 
Join Date: Nov 2009
Location: Austin, TX
Posts: 1,230
Sure way to tell is to take a hose to it... If, after water has been applied, you feel wetness around the seal... bingo.

You'll probably need to find an independent glass shop to replace the seal for you. Most of the chains don't like cars with metal trim inserts in the seal.
__________________
'85 300TD "Puff The Magic Wagon" - Rolling Resto
'19 Mazda CX-9 Signature - Wife's sled
'21 Morgan 3-Wheeler P101 Edition
'95 E300d - SOLD
'84 300TD "Brown Betty" - Miss this one
'81 240D "China Baby" - Farm grocery getter
Reply With Quote
  #4  
Old 11-24-2009, 11:07 AM
benhogan's Avatar
CPA/Greasemonkey
 
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,092
Quote:
Originally Posted by andrewjtx View Post
Sure way to tell is to take a hose to it... If, after water has been applied, you feel wetness around the seal... bingo.

You'll probably need to find an independent glass shop to replace the seal for you. Most of the chains don't like cars with metal trim inserts in the seal.
great tip! i'll do the hose bit when the rain finally stops. it's funny how we sometimes forget to do the obvious stuff and jump into the most expensive repairs right away.

thanks again!
__________________
Ben
1987 190d 2.5Turbo
Reply With Quote
  #5  
Old 11-24-2009, 11:09 AM
Vice President of Snark
 
Join Date: Nov 2009
Location: Austin, TX
Posts: 1,230
Quote:
Originally Posted by benhogan View Post
great tip! i'll do the hose bit when the rain finally stops.
I'm widely known as a major smartarse.
__________________
'85 300TD "Puff The Magic Wagon" - Rolling Resto
'19 Mazda CX-9 Signature - Wife's sled
'21 Morgan 3-Wheeler P101 Edition
'95 E300d - SOLD
'84 300TD "Brown Betty" - Miss this one
'81 240D "China Baby" - Farm grocery getter
Reply With Quote
  #6  
Old 11-24-2009, 11:12 AM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 5,265
I always felt up and around via the trunk to see if water was coming in. If the rain slows and the car is wet, that is a prime time to check.

But again, youll see drips in the trunk. may want to remove the c pillar trim and see if other water is coming in and down to the footwells in the rear.
__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
Reply With Quote
  #7  
Old 11-24-2009, 11:38 AM
Registered User
 
Join Date: Jul 2009
Location: Gardnerville, Nv
Posts: 40
I thought the wet rear floors were from leaking sunroof seals?
__________________
1982 240D auto 152k
1984 380SL 113k
2015 Ram 2500 6.7 Cummins
Previous:
1985 300DT
1984 190D 5sp Euro
Reply With Quote
  #8  
Old 11-24-2009, 11:41 AM
okyoureabeast's Avatar
Rogue T Tolerant
 
Join Date: Jul 2009
Location: North America
Posts: 1,675
Leaks are a PITA to trace.

I have a slight rear window seal leak. I purchased some MB window sealant that I should be getting from the dealer this wednesday. I have yet to discover a leaky front windshield, but I am going to reseal with my caulking paste anyway.
__________________
-Typos courtesy of my mobile phone.
Reply With Quote
  #9  
Old 11-24-2009, 01:42 PM
benhogan's Avatar
CPA/Greasemonkey
 
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,092
Quote:
Originally Posted by 390pi View Post
I thought the wet rear floors were from leaking sunroof seals?
are you talking about the rubber seal that goes around the sunroof? it looks old but seems fine with no gaps or anything.

is that easy to replace?
__________________
Ben
1987 190d 2.5Turbo
Reply With Quote
  #10  
Old 11-24-2009, 02:15 PM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 5,265
Quote:
Originally Posted by okyoureabeast View Post
Leaks are a PITA to trace.

I have a slight rear window seal leak. I purchased some MB window sealant that I should be getting from the dealer this wednesday. I have yet to discover a leaky front windshield, but I am going to reseal with my caulking paste anyway.
We had one, water sat on the outside glass, right where the rubber meets the glass, would seep under the glass and bubble up inside at the glass/seal contact point then drip down.

Put a tight bead of black silicone around the whole windshield...
__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
Reply With Quote
  #11  
Old 11-24-2009, 02:25 PM
benhogan's Avatar
CPA/Greasemonkey
 
Join Date: Aug 2009
Location: Chapel Hill
Posts: 1,092
Quote:
Originally Posted by JHZR2 View Post
We had one, water sat on the outside glass, right where the rubber meets the glass, would seep under the glass and bubble up inside at the glass/seal contact point then drip down.

Put a tight bead of black silicone around the whole windshield...
great tip. thank you. i'll try everything cheap first. i assume this black silicone is a Home Depot item?
__________________
Ben
1987 190d 2.5Turbo
Reply With Quote
  #12  
Old 11-24-2009, 06:19 PM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 5,265
permatex type stuff from auto parts or HD type stores.
__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
Reply With Quote
  #13  
Old 11-24-2009, 06:32 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by okyoureabeast View Post
I purchased some MB window sealant that I should be getting from the dealer this wednesday.
Can you kindly post the part number for that sealant. I need to pick some up and get the SD done.
Reply With Quote
  #14  
Old 11-24-2009, 06:33 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by JHZR2 View Post
Put a tight bead of black silicone around the whole windshield...
I'm not sure the silicone is what you want in that location. It must be compatible with the rubber and the M/B sealant is probably a better choice.
Reply With Quote
  #15  
Old 11-24-2009, 09:53 PM
JHZR2's Avatar
Registered User
 
Join Date: Jan 2002
Location: New Jersey
Posts: 5,265
Quote:
Originally Posted by Brian Carlton View Post
I'm not sure the silicone is what you want in that location. It must be compatible with the rubber and the M/B sealant is probably a better choice.
Well it "bonded" to the glass and rubber well, and was very easy to work.

THe seals were going to be replaced within the month anyway, so it was a great stopgap solution, which is likely far easier to work than the MB sealant if the MB sealant is like normal windshield sealant and rubber in a solvent.

Right tool for the job, for sure, but if the OP is trying to diagnose, then the silicone may be a good shot. If it turns out that the windshield seal was faulty, it should be replaced regardless.

__________________
Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 01:42 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page