99 STS – Problems: EXP ID 113, EXP ID 54

Hello, I’ve been having problems with my 99 STS since today: Some time ago, the message “Waiting for a Stabilizer” came out, while ABS and TC lights lit up. After a restart, however, it was always quiet for some time. Now the lamps are shining at every start and “Waiting for a Stabilizer” is also shining. In addition, “Schw. Grenze 145” is now displayed, when this speed is exceeded, the fuel supply is obviously reduced, so that you really only 145 km/h What needs to be maintained? And who can do that, if possible near Braunschweig? By the way, the on-board computer has been spinning since heue. Sometimes it shows me at 12°C “ice possible”, sometimes the oil interval indicator jumps from 47% to 0% and then eventually back again, sometimes comes “battery voltage too high” (at 14,2 V), the average consumption reaches astronomical heights (>70L/100km), the range is limited despite full tank, after full fuelling the tank watch showed “half full” ” but then after some time jumped back to the right value. What can be defective there?