Daylight registration questions!

Hello guys, I’ve already read a lot about daytime driving lights but an important question remains unanswered for me. It’s about the day running lights from the S6 that are to be built on an A8 4E. Now they have an E1 approval but that’s actually bound to the S6 and so you wouldn’t be legally on a 4E or? Because that’s always what the dealers write but I can’t believe it because I can also build a Fiat Punto headlight in my Audi front even if they are a E test signs have ?! In addition, the control still confuses me because with the current A4 dimming the TFL even when the flasher flashes, the S6 bands do not have this function. Is this mandatory or is it only needed for the A4 because the TFL are so close to the flasher? Thank you in advance for your answers lg Sascha