Just wanted to let everybody know it ran smooth before I changed the plug today, which resulted in the sort of misfiring running. The earlier rough running went away after a couple of days, and was after we gased up with probably bad gas from a place that don't sell gas often.... So I suspect that the first symptoms was just bad gas.
It odometer does no longer work, but I would say close to 200.000 miles.
Here is the plug directly taken out without any cleaning...
99 W210 E220 cdi sedan automatic (248.000 km) 210.006
Last edited by Amuso; 01-20-2003 at 01:53 PM.