These error codes have been read out by me, I would like to ask now specifically what you mean or what it could be. A user from Berlin has already given me some tips and I am now waiting for a competent second opinion. The car does not stutter, does not run on three cylinders and runs well, only this yellow lamp Chek I can not get deleted anymore. The only thing that strikes me again and again is the rev indicator, sometimes it falls off during the ride around also w Error code P 0300 Combustion oscillators, error code P 0320 Ignition/Zünddistribution/Motor speed Signal/Function feherlhaft Error code P 0320 Speed signal not detected.