Supersedes Technical Service Bulletin Group 90 number 15-58 dated November 5, 2015. Customer may report that the instrument cluster center display and/or the MIB system briefly perform a reset or cut out. DTC entries for ?optical data bus, interruption, sporadic? are logged in control units connected to the MOST bus. On A6 and A7 vehicles with PR code 9Q8 (Top instrument cluster), a software condition can cause the instrument cluster to cause disturbances on the MOST bus, causing the MMI to reboot.
