Wow is me.
Mine came on three months ago in Z4MR. O2 sensor replaced under AUC warranty.
Came back on again the other week, told dealer exact issue/problem.
They take car in at 8:15am, tell them need it at 4pm. At 4:10 it is still in garage, get it at 4:45.... oh and we need to have it back as we don't have Z4 O2 sensor in stock.....so booked in next week.
Now running very rough... will not be driving it next few days till sensor replaced.
But this is now third visit to UK BMW dealer this year under AUC waranty and on each occasion they can't fix trivial job in a day.....mmmmm new car sales downturn.... rip off BMW UK instead.... ?