Doing hard reset of computer is one of the most stupid actions you can do. I believe that diagnostic with CLIP is not worth a fortune in UK, but it will show the error. Any trained stuff can then decide weather error was no important and just simpy erase it or can show a start of a bigger issue which can be solve with minimum expense at the beginning.
2016 White 1.6 dCi 4WD BOSE with Premium Techno Pack, Winter Pack, Panoramic glass roof & autodipp mirror and retractable towbar.
Added ambient illumination, few chrome trims.
R-Link2 V1 upgraded to 22.214.171.1241, Boot version 4992, enabled Android Auto
Maps: Here 2019Q4