We do receive many questions about fixed firmware for MY2018 MHI2Q headunits.
This firmware is available by dealer, Partnumbers are: 4M0 906 961 BP (A4,A5,Q5,Q7) and 4M0 906 961 BQ (A3). SVM Codes are: MHI2QER5092 and MHI2ER5089 respectively.
Eventually, You can ask dealer for fixing some known issues (like not visible Apple CarPlay icon, TPI 2042635). Dealer will then install FW 5092