SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: Rear window rust / top seals

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Old 03-25-2015, 05:14 PM
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2003 E55, 2003 SL55, 2014 CLS63, 2018 q50 Redsport, 1968 Camaro SS, 1999 Trans am Firehawk
Rear window rust / top seals

Is the seal that goes along the rear window suppose to be this far away from the glass? You can see rust starting between the seal and the glass in the area that appears to just be exposed raw metal. I'm considering taking the seal off and sanding down the area and hitting it with rustoleum or something to seal it from continuing to rust then running some silicon under the seal and reattaching it.

Also in another photo I had a question about the seals that run along the triangles next to the rear windows (which I know need hit with paint or replaced). Are the seals that run along them only suppose to go a couple inches down like in the photo? It is the same on mine on both sides so I didn't know if it was designed this way or if I'm missing a seal on each side.
Attached Thumbnails Rear window rust / top seals-image1.jpeg   Rear window rust / top seals-image2.jpeg   Rear window rust / top seals-image3.jpeg  
Old 09-26-2023, 10:20 PM
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SL55, S500
Noticed this forming. Any solutions?
Old 09-27-2023, 01:44 PM
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I had the same thing. Pry up on the rubber, and get a small brush and use Extend, by rustoleum. It turns black and blends right in
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Old 09-27-2023, 03:24 PM
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Originally Posted by ajluzi1957
I had the same thing. Pry up on the rubber, and get a small brush and use Extend, by rustoleum. It turns black and blends right in
great! Ty so much. I will try it. Any chance you have pictures of the work?
Old 10-01-2023, 04:45 PM
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2005 R 230 SL350 (M112 3.7). Sold the 1966 W113 230SL recently
Don't you have a leakage problem? I did, took of the seal, the metal was only slightly rusty. Reattached the seal with black shipbuilding sealant. Finished it of afterwards with a thin bead of the same, along the glass. Supposedly sea water resistant...
Old 10-01-2023, 04:48 PM
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Originally Posted by Frederick NL
Don't you have a leakage problem? I did, took of the seal, the metal was only slightly rusty. Reattached the seal with black shipbuilding sealant. Finished it of afterwards with a thin bead of the same, along the glass. Supposedly sea water resistant...
I do not, zero water in the boot. I’m guessing water just accumulating there is the cause? I rarely drive perhaps it sits before and after car washes.

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