Jason, Mine is 2018 Model as well 40TDI SLine. done 20,00kms thankfully no rattles, but have seen posts from other users with same problem. the main beam assist, pre sense, automatic wipers, automatic headlights issues seems to be a common communications problem which Audi have yet to solve, will normally disappear on a restart. I use apple car play all the time with the usb lead plugged in so no problem there and never had any issues with the pre Sense, only happened once since i got the car and that was when i got a bit to close to a cyclist. Great car though but for a premium motor these issues should be corrected.