Multiple errors + Battery Discharge = malfunctioning Body Computer
I had similar sudden multiple errors on my 147. Besides these errors I experienced occasional discharges of the battery. And the reason for these anomalies was malfunctioning body computer.
Malfunction body computer (BC), occurred because of a slight corrosion on the circuit board of BC, this was the result of imperceptible water in the cabin, on the tapestry around the fuse and BC's. At heavy rain fabric around fuses was quite moistly. There were small leaks of water in the car- under windshield wiper cover (which is recognised as common mistake). The water came in the interior from the area under windshield, by the wire, which is used for opening bonnet.
To clear the mess of all errors and battery discharges I need to replace BC and fill plaster in cracks at the joints in the area where are located the wiper motor (that were made carelessly). The additional sealing rubber bands are needed around the outer casing where boot wire passes from engine compartment into the cockpit.
The body computer is allocated under the dash, behind fuse box and obd2 connector. When replacing BC's particular caution is needed, as these vary depending on the power (optional) equipment of the vehicle.