2002 W210 surging at idle

[shailey]

Hi, Folks,

I have a 2002 E320 with 49,700 miles on the clock. For the last month, I've noticed an intermitant shaking while idling at stoplights. The car is very quiet, so I feel the problem as a shutter rather than hear it as a sputter. This seems to be more common on rainy days.

The car is scheduled for it's last warrenty visit on Friday, 6-16 and I hope they find something. What sorts of problems would cause symptoms like these? Please let me know.

Thanks for you help,

Steve