[W126 Coupe] Rear Window support panel

[Jonathan Hodgman]

Pull the rear window, treat all the rust there, ie. grind/sand/acid 
etch/neutralize then coat everything iin POR>  There is a seam where 
they resistance weld two body panels together..this seam was never 
sealed @ the factory and moisture makes it's way in over time.. 
Sealing this up and all the surrounding metal Should mitigate the rust 
issue almost entirely.  Have yet to see or hear of a better means.

Jonathan

Dan Gardner wrote:

> 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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>



-- 
Jonathan Hodgman
Blue Ridge Mercedes/AMG East
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