Yes. I think I will need the regulator for both rear sides. As the right one has been tricky as well, although it isn't as bad as this side.
Well, now I at least know what and where the problem is
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Johannes
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Audi S8 -99, Pearlescent, Alcantara/silk napa leather, Burr walnut insert, Alcantara roof lining upper pack
A8 32V engine
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Jeep Grand Cherokee -98