Posted by Darren Cotton on June 27, 2005, 7:16 pm, in reply to "mercedes a190 x 2001"
HAVE YOU CARRIED OUT A COMPRESSION TEST, I HAVE HAD THE SAME CODE ON A S320? (I THINK IT WAS) ANYWAY, THIS VEHICLE WAS ROUGH ON IDLE BUT IF I REPLACED PLUGS ON CYLINDER NUMBER FOUR IT RUN OK FOR ABOUT 1 WEEK, THEN THE PLUG FOILED UP. THIS MAY NOT BE THE SAME PROBLEM BUT WORTH CHECKING COMPRESSIONS.