Hello All-
I have a '05 300C that makes a rumbling vibratiion feel and sound at 45 and up MPH. The sound will come and go, but is very frequent. I can make it stop with some acceleration or coasting . It sounds like I'm running over the rumble strips but there are none about. Less then 5,000 miles on the car. Bought it new in March '05
Has anyone heard of this or experienced this?
S