[W126 Coupe] Water leak in rear passenger side

[Dick Spellman]

Hi Jack,

That condensation is an indicator that some amount of water is getting 
in the car from somewhere.  Have you had the windscreen replaced in 
recent years?  Sometimes the contractor can mess things up by damaging 
certain fasteners or by poor application of the heated urethane seal 
leaving a gap or two.  Under the chrome roof/windscreen trim there are 
several metal rivets that can develop rust-out areas in the roof forward 
edge.  I've seen, repaired and documented this on one MB 300SE while the 
windscreen was being replaced.

Easy enough to take a look by removing the two upper horizontal chrome 
pieces.  I've got a file around here with the photos and procedure for 
removing the windscreen.  Plus the write-up on the MB fix for the roof 
edge and repair to the air damn under the wiper fascia if that's leaking.

Anyway, I'd start with the roof edge if you have already checked the 
sunroof drains.

Regards,

Dick

Jack Emery wrote:

> I have the same trouble with water dripping off my headliner 

> occasionally.

> It worries me because it comes through the electrical cluster panel in 

> the roof.

> I can't find anything wrong with the sun- roof sealing, & it is not 

> much water. Since it occurs at the morning start-ups, I am wondering 

> if it is caused by condensation overnight. Any ideas?       Jack OZ

> ----- Original Message ----- From: "Josh Allen" <heyallen at null-ptr.net>

> To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>

> Sent: Tuesday, January 29, 2008 12:55 PM

> Subject: Re: [W126 Coupe] Water leak in rear passenger side

>

>

>> When I was having problems with water in the back foot well of my 

>> car, it went away when I replaced the rear window seal, along with 

>> some non-hardening windshield sealant for good measure.

>>

>> I got lucky and didn't have any noticeable rust in the channel, and 

>> haven't had any water problems back there since, and some pretty 

>> healthy storms to test it with.

>>

>> My only remaining problem with a leak is a slow drip off of the 

>> driver's front roof molding, when in a heavy driving rainstorm, and 

>> driving at highway speeds.   It'll just drip once a minute or so, 

>> apparently running off of the headliner.

>>

>>

>> Best of luck with your pool problem!

>>

>> -Josh

>> The MB Coupes Website!

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>

>