I replaced the front brake pads and rotors on my Tiguan with Brembo rotors and Pagid pads. The new pads were rattling in the holder and after looking into it I ended up taking them out and buying VW OEM (TRW/Jurid) pads from the dealer. They fit much better and do not rattle.
However, while I was looking over the new pads I noted that two of them were marked "AT" out by the ears, one was marked "AU" more to the inside and one was marked "AV" in the same place as the AU marking. At first Google was not yielding much but finally I found a VW Technical Tip "46-19-01TT - Front Brake Pad Installation Tip" where it explained that the AT pads are outside on both sides, the AU pad is the right inner pad and the AV pad is for the left inner. Also the marking changed for the 2020 models.
Anyway I had never seen this before and thought it was a bit unusual but maybe not.
TT 46-19-01 - Front Brake Pad Installation Tip (2053737)
However, while I was looking over the new pads I noted that two of them were marked "AT" out by the ears, one was marked "AU" more to the inside and one was marked "AV" in the same place as the AU marking. At first Google was not yielding much but finally I found a VW Technical Tip "46-19-01TT - Front Brake Pad Installation Tip" where it explained that the AT pads are outside on both sides, the AU pad is the right inner pad and the AV pad is for the left inner. Also the marking changed for the 2020 models.
Anyway I had never seen this before and thought it was a bit unusual but maybe not.
TT 46-19-01 - Front Brake Pad Installation Tip (2053737)