[W126 Coupe] Rear Window support panel

Attila attila13 at bellsouth.net
Fri Apr 16 22:27:34 EDT 2010



That is how my '89 project began: the rear window rust.
All the way forward; I replaced the rusted part with sheet
metal, but found that you cannot prevent future rust by
simply replacing the factory set-up. So, I cut-out a piece
of 1/8" thick aluminum that is embedded on the channel
with windshield seal. I then used the same seal to put the
rear window in place. The rubber window seal was not
used. The set-up is the same as newer Benz cars. This
is not a very good explanation, but I can post pictures.
This way you will never have rust. BTW. The rear window
seal is brand new and available for those who want to use
the original configuration.


-----Original Message-----
From: mbcoupes-bounces at mbcoupes.com [mailto:mbcoupes-bounces at mbcoupes.com]
On Behalf Of Dan Gardner
Sent: Friday, April 16, 2010 11:27 AM
To: mbcoupes at mbcoupes.com
Subject: Re: [W126 Coupe] Rear Window support panel

Hi Folks

I thought while I was waiting for a replacement speedo,it would be a
good time to check the rear panel under the rear screen,luckily there only
seems to be some surface rust,I know from the cars I inspected prior to this

one(15)most had horendous perforated rust.
Its a difficult area to derust as access is only through the holes did
try a pencil style wire brush with limited sucess,sandblasting would be
effective but very messy.

I am interested what other members have done as far as rust proofing is
concerned,its quite tricky as water has the potential to leak from the
window and start rusting behind any new paint or sealer.
Most of the commercial "rust dissolvers" seems to be phosphoric acid
based which if not neutralised fully after treatment could makes matters
worse.
If anyone has a real "bullet-proof"solution I would love to know.




Kind Regards Dan 1986 560 SEC
Euro (220kw)

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