BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
so, my awesome 645 is playing up again.
details;
every now and again it goes into limp mode and cuts off cylinders 1, 4 and 7.
switching the engine off and on again clears it (i've become an expert at popping into neutral, tapping the brake and restarting at motorway speeds)
i've done...