One of the items on the MOST bus ring has tanked or you have an issue with one of the fiberoptic cables. MOST = Media Oriented Systems Transport. A MOST bus jumper / FOC coupler (fiber optic couple) - part: MOST 61 13 6 917 541 - can be used to eliminate / bypass specific devices on the network until the offender is found. Before that, try pulling out the FOC in the the glove compartment fuse box for a few seconds to give a simple MOST bus reset a shot.
Black 2007 Alpina B7
Tension strut bushings
White 2007 Alpina B7
Supercharger clutch/bearings, replaced exhaust valve/pulled head, sunroof seal, 6000K angel eyes
Black 2002 BMW 745Li (sold)
KW v3's, blue angel eyes, 8000K headlights & HID fogs, rebuilt alternator & mounting bracket gasket, sunroof seal, CCVs, plugs, sway bar bushings, timing & valve cover gaskets, valve stem seals, guibo joint, mechatronic sealing sleeve, trans fluid, sanded headlights...