mirror heating elment chem spill

Recently after using the air conditioner on low setting,on my 1998 e320,,the heating chemical used in the drivers side mirror leaked out all over the
door. It ate into the paint on the door. A paint shop tried to remove it with thinners And compound/Nothing worked .Door will have to be repainted,Has this happened to anyone else??
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Unfortunately, yes. You can find many references to this problem in the various MB forums on the internet.

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