How do you get the sunroof seal in for a w201 with tilting roof? I have completely disassmbled the roof and have the panel out and the brackets. I am able to get the seal in, but at the back it keeps falling out like its to loose or too small to stay in place. I have a Vaico Seal P/N 1247800298. Is there a front and rear to the seal? Thanks.

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1990 190E 3.0L