A previous message indicated a problem with a 98 V70 R in that the engine, at idle or in drive, 'coughed' or seemed to be trying to quit. I have the same problem. Every two or three days, most noticeable while idling, the engine shudders badly for just a second, as if starved for fuel or not getting spark. My mechanic cannot figure it out and the Volvo dealership knows of no bulletins relating to this problem. There feels like an electrical problem, and the last message indicated it was maybe a software glitch. Does anybody out there know any more about this?? Thanks.