i have only used OE BMW wipers myself. When I get them before I install I soak them with vinegar to soften them up then rinse them with water. I change them once a year whether they need replacing or not, but that's just what I do. You may want to check out Valeo or Bosch both make OE wipers for Audi and BMW.
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2021 X6M Competition, 2021 Audi SQ5 Technik, 2013 Audi S4
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