Hatterasguy,
The MB sealant is part# A0019893120 The local dealer got some for me in a day or so. Some will say that the sealant is not needed. My rear glass did not seal without it. While you have the window out grind/wirewheel all the rust out and use POR15 to treat it. Then sand, prime and topcoat. The sealer is squeezed in around the glass/rubber union and the rubber/body union. Be very careful and don't use too much on the rubber/body side. Just slide the applicator tip under the rubber and lay down a bead, just enought to seal the rubber to the body. Any excess that squeezes out is difficult to clean up. This stuff sticks to everything! If you get in a bind with the sealant let me know, I have half a tube left (you will only need half anyway) RT

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