Hi new to this. My 92 W140 500sel when left for 3 or more days starts fine but comming of startup/choke! to idle misfires chronically like its on 2/3 cyl. Need to high rev and keep reved up for 10 mins before settling down. Almost as if its charging a battery.Has any of the pcbs got onboard batteries that need changed. Prob used to be car could be left a week before this occured but time scale now getting less and less. Car fine if driven every day.
Ta Phil
Ta Phil
