I got it sorted. I switched on the function to activate or deactivate the auto headlights on the central display. Biggest mistake ever. Switched the function off and all was well. Diagnostic is also put away now... till I need it to depressurise my c5 suspension to change the spheres which has just arrived.
I cant seem to log into the suspension part of the diagnostic with the psa-com. So can’t depressurise the system. But will worry about that later.. for now I am good again. Phew
Thanks. I will try again but if I have to do it manually. Should I put car in low position. Disconnect the battery? Then open bleed nipple? Will there be any issues once I have it all back and start het and switch back to normal height? Will the pump prime? I do have LDS to top up.