re: How to clean glue off of plastic rear window?

[Phil Marx <BMW@xxxxxxx>]

Mark Colasante wrote:
>I have a 90 325iC with a plastic back window.  The window is in great
>shape except for two spots where it has a sort of glue residue on it.
>It looks like a previous owner made have had a sticker attached to the
>inside of the window. This glue must have been there for quite a while
>since it is very hard now.  Anyway, I am having trouble removing this
>glue?  So far I have tried soaking the spots with warm, soapy water and
>then gently trying to remove it with a razor blade.  This did not work
>well.  It seems it will do more scratching to the window than removing
>of glue.  I'd like to use a turpentine or a thinner be I am uncertain as
>to whether or not this will harm the plastic itself.  Has anyone ever
>had a similar problem and found a successful solution?


I see you got through the "Mark" filters.

The glue is coming out from under edge of the carpet in the top storage
well.  (Both sides, low on the outer edge, right?)  You will need to cover
the well with a towel or something to keep it from recuring even if you fix
the symptom.  I don't know any way to fix the back glass but you can try
the Meguiar's plastic cleaner and polish combination which may help as much
as anything.  If the spot is real sticky test a small amount of  mild
solvent like Varsol by wiping the area to remove the goo.  Goo-Gone or some
such from the hardware store may help too and is citrus based and should be
mild enough.  Others might suggest peanut butter or salad oil, too.  Then
follow with a plastic cleaner and polish like the Meguiar's.  If yours is a
late  enough model, then the plastic back window is a zip-in affair that is
replaceable easily if not cheaply.  If sewn in, any top shop can replace it
well enough with sheet goods for very little expense and a bit of sewing
which may not be as neat as the original stitching.

Please excuse the BMW content.

- -Phil Marx  BMWCCA #6021

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