I love these brands, Mann, Mahle, and Hengst.
Strange enough, for my Saab, the original Saab, Mann, Mahle, and Hengst are all identical. 100 percent and all from Germany.
On Mercedes, I've noticed Hengst being different as on the BMW example above.
Long time Mann was OEM on Mercedes, but their newest V6 (the 60 degree direct injected one) switched to a Mahle or Hengst for OEM, forget which one. The entire oil filtering unit switched from a Mann sourced part.
You can save a lot of money on European cars by getting OEM filters (cabin, air and oil) at such great prices. It's one of the maintenance perks of European cars in my opinion.