Product inspections revealed a faulty solenoid switch, which controls the electricity flow in a circuit. Models affected include the BMW’s 2 Series Coupé, several variants of the 3 Series, 4 Series and 5 Series, the 6 Series Gran Turismo, the 7 Series saloon and the X4, X5, X6 and Z4, according to the carmaker.
So they were telling BMW drivers if they use their blinkers their car will eventually catch on fire. Now it all makes sense.